CN107780825B - Insulating ladder for live working - Google Patents

Insulating ladder for live working Download PDF

Info

Publication number
CN107780825B
CN107780825B CN201711147813.3A CN201711147813A CN107780825B CN 107780825 B CN107780825 B CN 107780825B CN 201711147813 A CN201711147813 A CN 201711147813A CN 107780825 B CN107780825 B CN 107780825B
Authority
CN
China
Prior art keywords
sleeve
bandage
live working
insulating ladder
ladder
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.)
Active
Application number
CN201711147813.3A
Other languages
Chinese (zh)
Other versions
CN107780825A (en
Inventor
昝浩
马力远
张敦刚
王辉
周刚
刘泊辰
仲刚
张兴永
刘刚
韩永
刘广
冯忠奎
高原
孟庆刚
崔炎
周宝凤
李扬
李凯
张良
孙家朋
孙成龙
高言
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201711147813.3A priority Critical patent/CN107780825B/en
Publication of CN107780825A publication Critical patent/CN107780825A/en
Application granted granted Critical
Publication of CN107780825B publication Critical patent/CN107780825B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/34Ladders attached to structures, such as windows, cornices, poles, or the like
    • E06C1/36Ladders suspendable by hooks or the like
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/08Special construction of longitudinal members, or rungs or other treads
    • E06C7/082Connections between rungs or treads and longitudinal members
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/18Devices for preventing persons from falling
    • E06C7/186Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/42Ladder feet; Supports therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

The present invention relates to electric power insulating ladder technical fields, in particular to a kind of insulating ladder for live working.Including sequentially connected hook, single-column ladder, lower end fixed cell and anchor ear from top to bottom;Hook includes hanger bulk and the first sleeve that hanger bulk one end is arranged in;Single-column ladder includes vertical bar and is horizontally spaced about multiple pedals on vertical bar, and the upper end of vertical bar is socketed in the inside of first sleeve, is provided with support construction on the downside of pedal;Lower end fixed cell includes insulation tube and the second sleeve that insulation tube one end is arranged in, and the lower end of vertical bar is socketed in second sleeve;Anchor ear includes hoop body and the tightening device and lock for being separately positioned on hoop body both ends, is provided with bandage between tightening device and lock, and adjusting buckle is provided on bandage, and adjusting buckle is used to adjust the length of bandage.The insulating ladder for live working structure is simple, easy for installation, overall structure is secured, stability is good, is applicable to the electric pole of different thicknesses.

Description

Insulating ladder for live working
Technical field
The present invention relates to electric power insulating ladder technical fields, in particular to a kind of insulating ladder for live working.
Background technique
Livewire work be power supply department improve power supply reliability a kind of important way, livewire work can make industry expansion take fire, The work such as defect elimination carries out under not power-off condition, substantially increases the reliability of power supply.In recent years, various regions power department is adopted extensively The livewire work of distribution line is carried out with aerial lift device with insulated arm, aerial lift device with insulated arm has lift-off convenience, mobility strong, job area Greatly, high mechanical strength, the advantages that electrical insulation properties are high.But it is exhausted in regions such as mountainous region, rural area, field, the lanes having inconvenient traffic Edge bucket arm vehicle can not just carry out livewire work in place, thereby result in partial region and have a power failure frequently, the reliability of power supply is low.
The common method of power distribution live-wire has insulating bar and two kinds of insulating glove method, in real work, generally takes absolutely Edge bucket arm vehicle mode directly carries out livewire work using insulating glove.But when in particular job place: mountain area, hills, crops When ground, green house of vegetables, mushy road etc. are nearby worked, livewire work can not be carried out using aerial lift device with insulated arm, at this point, operation Personnel, which can be used, to be stepped on bar climbers, is carried out operation in the way of insulating bar, requirement of this operation mode to operating personnel Higher, the disadvantage is that time-consuming and laborious, the activity duration is and to need to consume a large amount of physical strength using 5-6 times of insulating glove method, It is very unfavorable to the development of work.
With advances in technology, also there is the insulating ladder of several types, but be typically all using common ladder Form is horizontally disposed with cross bar between i.e. two vertical bars, and hook is arranged in the upper end of vertical bar, hangs on conducting wire.This mode Insulating ladder it is not secured enough, stability is bad;Since the height of electric operating is generally all very high, common ladder type is difficult to protect Demonstrate,prove the safety of operating personnel.
Summary of the invention
The main purpose of the present invention is to provide a kind of insulating ladder for live working, the insulating ladder for live working structure is simple, It is easy for installation, overall structure is secured, stability is good, is applicable to the electric pole of different thicknesses.
To achieve the goals above, the following technical solution is employed by the present invention:
A kind of insulating ladder for live working, including from top to bottom sequentially connected hook, single-column ladder, lower end fixed cell and Anchor ear;
Hook includes hanger bulk and the first sleeve that hanger bulk one end is arranged in;
Single-column ladder includes vertical bar and is horizontally spaced about multiple pedals on vertical bar, and the upper end of vertical bar is socketed in first The inside of sleeve is provided with support construction on the downside of pedal;
Lower end fixed cell includes insulation tube and the second sleeve that insulation tube one end is arranged in, and the lower end of vertical bar is socketed in In second sleeve;
Anchor ear includes hoop body and the tightening device and lock for being separately positioned on hoop body both ends, between tightening device and lock It is provided with bandage, adjusting buckle is provided on bandage, adjusting buckle is used to adjust the length of bandage.
Preferably, hanger bulk includes the bracket of 2 V-shaped installations, bracket includes the right angle trigonometry of setting at one end The vertical right-angle side of shape bracket, right angled triangle bracket is connected in first sleeve, and bracket further includes the L shape that the other end is arranged in Coupler body.
Preferably, being horizontally disposed on the level right angle side of right angled triangle bracket and bevel edge has cross bar, the both ends of cross bar 2 right angled triangle brackets are separately connected, cross bar is used to support reinforcing hanger bulk.
Preferably, support construction includes the L shape supporter being symmetricly set on the downside of pedal and is arranged in L shape supporter The triangular support body of downside, L shape supporter are bolted with pedal.
Preferably, bracket is an integral structure, the L shape supporter and triangular support of the same side on the downside of pedal are set Body is an integral structure, and triangular support body is engraved structure.
Preferably, hoop body includes curved rod and the protrusion that is arranged at left and right sides of curved rod.
Preferably, curved rod and protrusion are an integral structure.
Preferably, tightening device includes the U-shaped bar for being fixed on hoop body one end, one end of U-shaped bar is fixed on hoop body, U The other end of shape bar is connected with connector, and one end of connector is provided with round hook, and circle hook rhampotheca is on U-shaped bar, bandage ring Around on the other end of the connector.
Preferably, lock includes buckle and passes through the holddown spring of articulated shaft pin connection, one end of bandage with buckle It is fixed on hinged pivot pin.
Preferably, the material of hook and lower end fixed cell is epoxy resin.
The invention has the following advantages:
(1) insulating ladder for live working is provided with hook, which uses the form of 2 V-shaped installations of bracket, Mei Gezhi Frame includes triangular supports and L shape coupler body, and is horizontally disposed with and has on the level right angle side of right angled triangle bracket and bevel edge Cross bar, the bracket and cross bar of triangle increase the firm reliability of hook, and hook hangs Shi Buyi on cross-arm on utility poles It shakes;L shape coupler body makes installation simple, easy to operate.
(2) insulating ladder for live working is provided with single-column ladder, and the pedal of the single-column ladder, which passes through, is arranged in leading among pedal Hole is interspersed on vertical bar, is not required climbing sequence;Support construction uses the triangular support body of hollow out, the design of hollow type Safety rope can be passed through into through-hole, make its stability under loading, guarantee operating personnel's safety.
(3) insulating ladder for live working is provided with lower end fixed cell, which passes through insulation tube and second Sleeve links together single-column ladder and anchor ear, and lower end fixed cell is all made of epoxide resin material and is made, the machine of epoxy resin Tool intensity is big, and insulation performance is good, and stability is strong.
(4) insulating ladder for live working is provided with anchor ear, which includes tightening device and lock, in tightening device and lock It is provided with bandage between button, is provided with adjusting buckle on bandage, bandage is tensed by adjusting buckle, can be carried out according to the thickness of electric pole Bandage is adjusted, lock includes buckle and holddown spring, and when use, which detains buckle, can be completed the fixed work of anchor ear, easy for installation fast The time is saved in victory.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural schematic diagram of support construction of the invention.
Fig. 3 is the structural schematic diagram of lock of the invention.
In figure: 11, hanger bulk;12, first sleeve;13, bracket;14, right angled triangle bracket;15, L shape coupler body;16, Cross bar;21, vertical bar;22, pedal;23, support construction;24, L shape supporter;25, triangular support body;31, insulation tube;32, Two sleeves;41, hoop body;411, curved rod;42, tightening device;43, it latches;431, buckle;432, holddown spring;44, bandage; 45, adjusting buckle.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, a kind of insulating ladder for live working, including sequentially connected hook, single-column ladder, lower end are solid from top to bottom Order member and anchor ear.
With continued reference to Fig. 1, hook includes hanger bulk 11 and the first sleeve 12 that 11 one end of hanger bulk is arranged in.It hangs Hook ontology 11 includes the bracket 13 of 2 V-shaped installations, and each bracket 13 includes the right angled triangle bracket 14 of setting at one end, The vertical right-angle side of the right angled triangle bracket 14 is connected to the side of first sleeve 12, and each bracket 13 further includes being arranged another The L shape coupler body 15 of one end, the L shape coupler body 15 is L-shaped, that is, has horizontal positioned straight-bar and vertical with the straight-bar vertical Bar is installed and used very convenient and safe and reliable in use, vertical bar is hooked on cross-arm on utility poles.Branch Frame 13 is the structure of integral type, i.e., each bracket 13 is to be converted into one end by a steel as right angled triangle, and the other end rolls at L-shaped hook Shape.The vertical side for being welded on first sleeve 12 of vertical right-angle side.The level right angle side of right angled triangle bracket 14 and Being horizontally disposed on bevel edge has cross bar 16, and cross bar 16, which is used to support, reinforces hanger bulk 11, increases the fastness of hook support, makes 2 A bracket 13 is not likely to produce shaking.Since the width of the cross-arm on electric pole is more much larger than the width of first sleeve 12,2 branch One end of frame 13 is welded on the side of first sleeve 12, and the other end is hooked on cross-arm, and therefore, 2 brackets 13 want V-shaped installation, It is hooked so as to the other end on cross-arm on utility poles.The material of hook is epoxy resin, and hook made of the material is mechanical strong Degree is big, insulation performance is good, light weight.
Referring to Fig. 1 and Fig. 2, single-column ladder includes the multiple pedals 22 of vertical bar 21 and horizontal spacing setting on vertical bar 21, The centre of pedal 22 is provided with through-hole, is covered on vertical bar 21 by through-hole, and through-hole is arranged in intermediate in pedal 22, so that pedal 22 It is mounted on the center stressed position of vertical bar 21, this sequence designed so that operating personnel climbs in climbing without consideration, And the spacing distance between multiple pedals 22 is equal.The upper end of vertical bar 21 is socketed in the inside of first sleeve 12, vertical bar After 21 upper end is socketed in the inside of first sleeve 12, screw bolt reinforcing can be passed through again.The downside of pedal 22 is provided with support construction 23.Support construction 23 includes being symmetricly set on the L shape supporter 24 of 22 downside of pedal and being arranged on the downside of L shape supporter 24 Triangular support body 25, L shape supporter 24 and triangular support body 25 are all the two sides for being symmetrically arranged at vertical bar 21, if It sets L shape supporter 24 and triangular support body 25 in the same side of 22 downside of pedal to be an integral structure, L shape supporter 24 rises To the effect for holding pedal 22, triangular support body 25 can satisfy force request, increase withstanding forces and increasing for pedal 22 Fixation is bolted in the fastness of strong pedal 22, L shape supporter 24 and pedal 22.Triangular support body 25 is hollow out knot Structure, in the present embodiment, the engraved structure are that through-hole is provided on triangular support body 25, and the design of hollow type can will be pacified Full rope keeps its stress more stable, to guarantee the safety of operating personnel across hole.
With continued reference to Fig. 1, lower end fixed cell includes insulation tube 31 and is arranged in the second of described 31 one end of insulation tube Sleeve 32, the lower end of vertical bar 21 are socketed in second sleeve 32.Lower end fixed cell is made of epoxide resin material, uses this Insulation tube 31 and 32 mechanical strength of second sleeve made of material are big, insulation performance is good, stability is strong.The lower end of vertical bar 21 It would generally be fixed again with bolt after being socketed in second sleeve 32.
Referring to Fig. 1 and Fig. 3, anchor ear includes hoop body 41 and the tightening device 42 for being separately positioned on 41 both ends of hoop body and lock 43, it is provided with bandage 44 between tightening device 42 and lock 43, adjusting buckle 45 is provided on bandage 44, adjusting buckle 45 is for adjusting The length of bandage 44, the adjusting buckle 45 are common stud adjusting buckle, are provided with teeth on adjusting buckle 45, bandage is interspersed in day In 2 mouths of the adjusting buckle 45 of font, teeth are used to block the bandage 44 after adjusting.Hoop body 41 includes curved rod 411 and sets The protrusion in 411 left and right sides of curved rod is set, curved rod 411 and protrusion are an integral structure, and curved rod 411 is for embracing electric wire Bar, protrusion are stuck in supporting point of the two sides of electric pole as insulating ladder in lower end.Tightening device 42 includes being fixed on hoop body 41 1 The U-shaped bar at end, one end of U-shaped bar are fixed on one end of hoop body 41, and the other end of U-shaped bar is connected with connector, this implementation Connector is the connector of " door " font in example, and one end of connector is provided with round hook, and circle hook rhampotheca is on the bar of U-shaped bar, circle The design of hook allows connector movable, and bandage 44 is around on the other end of the connector.Lock 43 include buckle 431 and Pass through the holddown spring 432 of articulated shaft pin connection with buckle 431, one end of bandage 44 is fixed on hinged pivot pin, bandage 44 The other end is looped around on connector.
It is of the invention use process is as follows described:
In the use of the present invention, insulating ladder for live working of the invention is hung on utility poles by the hook of upper end first Cross-arm on, the anchor ear of lower end is embraced in the lower end of electric pole, and bandage is connected and adjust, and will be fixed on the another of the bandage of lock one end One end is punctured on the connector on tightening device, and bandage is inserted on adjusting buckle after and carries out tightening adjusting, passes through bandage The lower end of insulating ladder for live working is fixed on utility poles, and withholding lower pinch plate can be completed the fixed work of anchor ear.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (7)

1. a kind of insulating ladder for live working, which is characterized in that solid including sequentially connected hook, single-column ladder, lower end from top to bottom Order member and anchor ear;
The hook includes the first sleeve (12) of hanger bulk (11) and setting in the hanger bulk (11) one end;
The single-column ladder includes the multiple pedals (22) of vertical bar (21) and horizontal spacing setting on vertical bar (21), the vertical bar (21) upper end is socketed in the inside of the first sleeve (12), is provided with support construction (23) on the downside of the pedal (22);
The lower end fixed cell includes the second sleeve (32) of insulation tube (31) and setting in the insulation tube (31) one end, The lower end of the vertical bar (21) is socketed in the second sleeve (32);
The anchor ear includes hoop body (41) and the tightening device (42) for being separately positioned on the hoop body (41) both ends and lock (43), it is provided with bandage (44) between the tightening device (42) and lock (43), is provided with adjusting buckle on the bandage (44) (45), the adjusting buckle (45) is used to adjust the length of the bandage (44);
The hanger bulk (11) includes the bracket (13) of 2 V-shaped installations, and the bracket (13) includes setting at one end straight The vertical right-angle side of angle triangular supports (14), the right angled triangle bracket (14) is connected on the first sleeve (12), The bracket (13) further includes the L shape coupler body (15) that the other end is arranged in;
Being horizontally disposed on the level right angle side of the right angled triangle bracket (14) and bevel edge has cross bar (16), the cross bar (16) Both ends be separately connected 2 right angled triangle brackets (14), the cross bar (16), which is used to support, reinforces the hanger bulk (11);
The support construction (23) includes the L shape supporter (24) being symmetricly set on the downside of the pedal (22) and is arranged in institute The angular supporter (25) on the downside of L shape supporter (24) is stated, the L shape supporter (24) and the pedal (22) are connected by bolt It connects.
2. insulating ladder for live working according to claim 1, which is characterized in that bracket (13) is an integral structure, setting The L shape supporter (24) of the same side and the triangular support body (25) are integral type knot on the downside of the pedal (22) Structure, the triangular support body (25) are engraved structure.
3. insulating ladder for live working according to claim 1, which is characterized in that the hoop body (41) includes curved rod (411) and protrusion at left and right sides of the curved rod (411) is set.
4. insulating ladder for live working according to claim 3, which is characterized in that the curved rod (411) and the protrusion It is an integral structure.
5. insulating ladder for live working according to claim 1, which is characterized in that the tightening device (42) includes being fixed on The U-shaped bar of described hoop body (41) one end, one end of the U-shaped bar are fixed on one end of the hoop body (41), the U-shaped bar it is another One end is connected with connector, and one end of the connector is provided with round hook, and the round hook rhampotheca is on the U-shaped bar, institute Bandage (44) is stated to be looped around on the other end of the connector.
6. insulating ladder for live working according to claim 1, which is characterized in that the lock (43) includes buckle (431) And passing through the holddown spring (432) of articulated shaft pin connection with the buckle (431), one end of the bandage (44) is fixed on institute It states on hinged pivot pin.
7. insulating ladder for live working according to claim 1, which is characterized in that the hook and the lower end fixed cell Material be epoxy resin.
CN201711147813.3A 2017-11-17 2017-11-17 Insulating ladder for live working Active CN107780825B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711147813.3A CN107780825B (en) 2017-11-17 2017-11-17 Insulating ladder for live working

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711147813.3A CN107780825B (en) 2017-11-17 2017-11-17 Insulating ladder for live working

Publications (2)

Publication Number Publication Date
CN107780825A CN107780825A (en) 2018-03-09
CN107780825B true CN107780825B (en) 2019-08-16

Family

ID=61433362

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711147813.3A Active CN107780825B (en) 2017-11-17 2017-11-17 Insulating ladder for live working

Country Status (1)

Country Link
CN (1) CN107780825B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108571284B (en) * 2018-05-15 2019-11-08 国家电网公司 Power line sliding ladder
CN110905388A (en) * 2019-12-06 2020-03-24 贵州电网有限责任公司 A insulating ladder of live working multisection for on pole
CN112360326B (en) * 2020-10-20 2022-07-26 贵州电网有限责任公司 Insulating aerial ladder of live working
CN114776207A (en) * 2022-05-30 2022-07-22 国网河南省电力公司伊川县供电公司 Steel pipe high-voltage pole plug-in type crawling ladder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129199U (en) * 1978-02-28 1979-09-07
CN1347676A (en) * 2000-09-22 2002-05-08 克斯克管理公司 Children's chair with crotch belt positioning device
CN201258680Y (en) * 2008-08-29 2009-06-17 安徽省电力公司淮南供电公司 Insulating centipede ladder
CN203347672U (en) * 2013-06-17 2013-12-18 湖南省电力公司邵阳电业局 Special climbing ladder stand for pole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129199U (en) * 1978-02-28 1979-09-07
CN1347676A (en) * 2000-09-22 2002-05-08 克斯克管理公司 Children's chair with crotch belt positioning device
CN201258680Y (en) * 2008-08-29 2009-06-17 安徽省电力公司淮南供电公司 Insulating centipede ladder
CN203347672U (en) * 2013-06-17 2013-12-18 湖南省电力公司邵阳电业局 Special climbing ladder stand for pole

Also Published As

Publication number Publication date
CN107780825A (en) 2018-03-09

Similar Documents

Publication Publication Date Title
CN107780825B (en) Insulating ladder for live working
CN102882157B (en) Portable shockproof hammer tool for replacing tension wire in power cut
CN107069562B (en) Replacing insulator under electrified method and load transfer device
CN102856838A (en) Tubular bus support insulator changing tool and method
CN203367865U (en) Auxiliary bracket for maintaining power transmission line
CN208820424U (en) A kind of electromechanical installation cable stringer of building
CN202215040U (en) Telescopic adjustable temporary wire drawing device for transmission line pole/tower
CN206769434U (en) A kind of temporary guard rail device of fast demountable
CN203756015U (en) Aerial work platform for power transmission iron tower
CN106908330B (en) Single-direction and double-direction combined bending test device for composite cross arm
CN209581203U (en) A kind of contact net system based on composite wrist-arm
CN103967314B (en) A kind of 10kv-110kv emergency first-aid repair bar
CN110492384A (en) A kind of disengaging extra-high voltage strain rod tower insulator chain supplementary insulation bar
CN202353100U (en) Triangular insulation lifting strut
CN202917892U (en) Replacing tool for supporting insulator of tubular busbar
CN212010567U (en) Three-hanging-point ground wire suspension insulator string
CN210182910U (en) Simple insulator lifting device for concrete pole
CN208516850U (en) A kind of cement rod-type power transmission line overhead ground wire auxiliary device
CN107086499B (en) Conductor load transfer tool and replacing insulator string device
CN202190023U (en) Wire bracing device for overhead wire
CN105406402A (en) Foldable and lightweight single-string output type strain insulator string device
CN205935896U (en) Deformed steel pipe pole is striden to brill
CN203690020U (en) Extra-high-voltage direct current insulator pollution degree live-line test chain hanging hardware fitting
CN206205553U (en) Novel breaker switch bracket on a kind of post
CN110984668A (en) Safe type electric power tower and root structure of bottom thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant