CN103457199A - Cross arm safety suspension wire ladder - Google Patents

Cross arm safety suspension wire ladder Download PDF

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Publication number
CN103457199A
CN103457199A CN2012101911332A CN201210191133A CN103457199A CN 103457199 A CN103457199 A CN 103457199A CN 2012101911332 A CN2012101911332 A CN 2012101911332A CN 201210191133 A CN201210191133 A CN 201210191133A CN 103457199 A CN103457199 A CN 103457199A
Authority
CN
China
Prior art keywords
hook
ladder
cross
wire
welded
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
Application number
CN2012101911332A
Other languages
Chinese (zh)
Inventor
马兴誉
张念军
黄宗泽
冀颖
张淼
刘峰
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
Taiyuan Power Supply Co of Shanxi Electric Power Co
Original Assignee
State Grid Corp of China SGCC
Taiyuan Power Supply Co of Shanxi Electric Power Co
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, Taiyuan Power Supply Co of Shanxi Electric Power Co filed Critical State Grid Corp of China SGCC
Priority to CN2012101911332A priority Critical patent/CN103457199A/en
Publication of CN103457199A publication Critical patent/CN103457199A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a cross arm safety suspension wire ladder and belongs to the technical field of power transmission and distribution engineering. A ladder body is provided with a U-shaped hanging ring which is hung on a leading wire cross arm through a hand-pulling reversed chain and is provided with a safety rope in a tying mode. A wire hanging hook is arranged below and can hang a leading wire. When a worker maintains a line on line, the worker can go between the cross arm and the leading wire by crossing an insulator and does not tread the insulator or climb the insulator, line maintaining is safe and efficient, labor intensity is low, and the insulator cannot be stained. The cross arm safety suspension wire ladder is used for power transmission line maintaining.

Description

Cross-arm insurance messenger wire ladder
The technical field power transmission and distribution project.
During background technology transmission line interruption maintenance, the workman need to be along lower wire on insulator string.Existing method is to climb up along free-hand the assigning of insulator string.This way: the one, labour intensity is large; The 2nd, the potential hazard of trick slippage is arranged; The 3rd, prevent the contamination insulator surface, encourage flashover and form.Upper lower wire needs the utensil of the two safety of a kind of personage.
Summary of the invention cross-arm insurance messenger wire ladder is a kind of light ladder be hung between cross-arm and wire, can make the people cross easily and safely insulator string, between cross-arm and wire, comes and goes.
Cross-arm insurance messenger wire ladder (Fig. 1) is comprised of safety rope 1, U-shaped link 2, terraced body 4, line hanging hook 6.The pin nail 5 that ladder body 4 has left and right alternately to be fixedly mounted with.Ladder is first by bolt 3 hinge dress U-shaped links 2.The ladder tail is fixedly mounted with line hanging hook 6 by two bolts 3.Line hanging hook 6 hangs wire 7.The first ladder of ladder has been fastened safety rope 1 with it.
During the maintenance circuit, the workman takes the lifting rope hand tool and first goes up on tower, toggles rear safety belt.Hand is climbed pin and is moved, and arches one's back and crawls, to wire cross-arm 8, to toggle front safety belt.Lifting rope is hung on the ground wire cross-arm and toggles.Then the hand of ground assembling is pulled down to chain 9 messenger wire ladder combinations, the drop in beam node that winches to insulator string 10 on wire cross-arm 8 is firmly linked with.The messenger wire ladder is reversed in the lifting push-and-pull, makes line hanging hook 6 tangle the wire 7 of 10 times companies of insulator string.Operation jack 9, make the messenger wire ladder sling wire 7.The workman can following be overhauled to wire 7 along the messenger wire ladder, complete after more suitable messenger wire ladder climb up cross-arm 8; Also can stand on the messenger wire ladder and change insulator.Overhaul completely, knock off by the reverse order of above-mentioned operation.
The advantage of cross-arm insurance messenger wire ladder is: 1, workman's lower wire on the messenger wire ladder, and hand is held, and pedal is steady, safe and reliable; 2, do not climb, labour intensity is low; 3, easy for going up and down, work efficiency is high; 4, contamination insulator not.
Description of drawings 1 is shown cross-arm insurance messenger wire ladder structure messenger wire operation schematic diagram; Fig. 2 shows the line hanging hook structural representation; Fig. 3 shows and leads the hook structure schematic diagram.
Embodiment ladder body 4 band steels are made, and above have pin to follow closely 5 installing holes, and arrange between two parties in all holes, pitch-row 450mm.First the first pin nail 5 of ladder is near bolt 3.The ladder tail is fixedly mounted with two holes of line hanging hook near terraced caudal leg nail 5.The high overall length for the insulator string 10 that will pass of ladder and the length that suspension clamp 11 length sums deduct line hanging hook 6, then deduct half meter.Pin nail 5 is selected M16x180 steel tower pin nail, and termination is welded with the anti-pin sideslip of back-up ring that Φ 6mm round steel curves ring-type.U-shaped link 2, according to thread hook 6 wire that hangs 7 weight, tower body 4 weight and contained workman's body weight sum, is drunk choosing in the electric armour clamp product.
Line hanging hook 6 (Fig. 2) has the two-wire hook A of applicable single conductor, double bundle conductor, 4 line hook C of 3 line hook B of applicable 3 bundle conductors and applicable 4 bundle conductors.3 line hook B, 6 bundle conductors of can also slinging.4 line hook C, 8 bundle conductors of can also slinging.
The neck of hook band steel of two-wire hook A is made, and button has two circular holes laterally placed in the middle; Handle body one side is welded with two round steel hook processed between two parties, and hook equals the double bundle conductor spacing apart from X.
The three-jaw neck of hook band steel of 3 line hook B is made, and middle neck of hook button has two circular holes laterally placed in the middle, and respectively there is a side handle both sides; Lower end one side of two side handles and the middle neck of hook is welded with round steel hook processed, and hook equals 3 bundle spacings apart from y.Upper end between both sides handle and the middle neck of hook is welded with crosspiece and supports.
The vulsellum hook handle band steel of 4 line hook C is made, and the left and right neck of hook is welded into one, in have crosspiece to support, button has two circular holes laterally placed in the middle; Be welded with the round steel hook at right neck of hook homonymy hypomere, hook equals 4 bundle spacings apart from Z.
Wire coupler body 12 steel pipe manufacture, drilling is flattened in upper end, with bolt 3, U-shaped link 2 is housed; Hypomere is flattened, and a side is welded with single hook 13 between two parties.

Claims (7)

1. cross-arm insurance messenger wire ladder, be comprised of the line hanging hook under terraced body and terraced body, it is characterized in that: a, by safety rope (1), U-shaped link (2), terraced body (4), line hanging hook (6), formed, and had annex to lead hook; The pin nail (5) that b, terraced body (4) have left and right alternately to be fixedly mounted with; B, first bolt (3) the hinge dress U-shaped link (2) that passes through of ladder; C, terraced tail are fixedly mounted with line hanging hook (6) by two bolts (3); D, terraced first ladder have been fastened safety rope (1) with it.
2. cross-arm according to claim 1 insures the messenger wire ladder, and it is characterized in that: terraced body (4) band steel is made, and pin nail (5) installing hole is above arranged, and arrange between two parties in all holes, pitch-row 450mm; First the first pin nail (5) of ladder is near bolt (3); The ladder tail is fixedly mounted with two holes of line hanging hook (6) and follows closely (5) near terraced caudal leg; The high overall length for the insulator string 10 that will pass through of ladder and the length that suspension clamp (11) length sum deducts line hanging hook (6), then deduct half meter.
3. cross-arm according to claim 1 insures the messenger wire ladder, it is characterized in that: pin nail (5) is selected M16x180 steel tower pin nail, and termination is welded with the back-up ring that Φ 6mm round steel curves ring-type.
4. cross-arm according to claim 1 insures the lifting rope ladder, and it is characterized in that: the neck of hook band steel of two-wire hook (A) is made, and button has two circular holes laterally placed in the middle; Handle body one side is welded with two round steel hook processed between two parties, and hook equals the double bundle conductor spacing apart from (X).
5. cross-arm according to claim 1 insures the messenger wire ladder, and it is characterized in that: the three-jaw neck of hook band steel of 3 line hooks (B) is made, and middle neck of hook button has two circular holes laterally placed in the middle, and respectively there is a side handle both sides; Hypomere one side of two side handles and the middle neck of hook is welded with round steel hook processed, and hook equals the tripartition wire pitch apart from (Y); Upper end between two side handles and the middle neck of hook is welded with crosspiece and supports.
6. cross-arm according to claim 1 insurance messenger wire ladder, it is characterized in that: the vulsellum hook band steel of 4 line hooks (c) is made, and the left and right neck of hook is welded into one, in have crosspiece to support, button has two circular holes laterally placed in the middle; Neck of hook homonymy lower end, left and right is welded with round steel hook processed, and hook equals four apportion wire pitch apart from (Z).
7. cross-arm according to claim 1 insures the messenger wire ladder, and it is characterized in that: lead hook coupler body (12) and use the steel pipe manufacture, drilling is flattened in upper end, with bolt (3), U-shaped link (2) is housed; Lower end is flattened, and a side is welded with single hook (13) between two parties.
CN2012101911332A 2012-06-02 2012-06-02 Cross arm safety suspension wire ladder Pending CN103457199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101911332A CN103457199A (en) 2012-06-02 2012-06-02 Cross arm safety suspension wire ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101911332A CN103457199A (en) 2012-06-02 2012-06-02 Cross arm safety suspension wire ladder

Publications (1)

Publication Number Publication Date
CN103457199A true CN103457199A (en) 2013-12-18

Family

ID=49739291

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101911332A Pending CN103457199A (en) 2012-06-02 2012-06-02 Cross arm safety suspension wire ladder

Country Status (1)

Country Link
CN (1) CN103457199A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410009A (en) * 2014-12-08 2015-03-11 国家电网公司 Climbing type steel wire rope ladder
CN104836156A (en) * 2015-05-14 2015-08-12 国网辽宁省电力有限公司丹东供电公司 Synthetic insulator simple ladder
CN105089487A (en) * 2015-09-07 2015-11-25 国网山东省电力公司烟台供电公司 Special portable power transmission line routing inspection rope ladder capable of being operated by single person
CN106786152A (en) * 2016-12-26 2017-05-31 国网山东省电力公司临沂供电公司 Can climbing type compound backup protection rope and its application method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201038652Y (en) * 2007-03-03 2008-03-19 辽宁省电力有限公司鞍山供电公司 Unipod insulated combined suspending ladder
CN201466572U (en) * 2009-08-27 2010-05-12 河南省电力公司平顶山供电公司 Special crawling ladder for installation and replacement of high-tension overhead line composite insulator
CN201526263U (en) * 2009-07-03 2010-07-14 东北电网有限公司沈阳超高压局 Line compound insulator rope ladder for climbing to repair
CN201934006U (en) * 2010-12-29 2011-08-17 河南省电力公司焦作供电公司 Power overhaul working ladder
CN203103834U (en) * 2012-06-02 2013-07-31 国家电网公司 Cross arm insurance wire lifting ladder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201038652Y (en) * 2007-03-03 2008-03-19 辽宁省电力有限公司鞍山供电公司 Unipod insulated combined suspending ladder
CN201526263U (en) * 2009-07-03 2010-07-14 东北电网有限公司沈阳超高压局 Line compound insulator rope ladder for climbing to repair
CN201466572U (en) * 2009-08-27 2010-05-12 河南省电力公司平顶山供电公司 Special crawling ladder for installation and replacement of high-tension overhead line composite insulator
CN201934006U (en) * 2010-12-29 2011-08-17 河南省电力公司焦作供电公司 Power overhaul working ladder
CN203103834U (en) * 2012-06-02 2013-07-31 国家电网公司 Cross arm insurance wire lifting ladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104410009A (en) * 2014-12-08 2015-03-11 国家电网公司 Climbing type steel wire rope ladder
CN104836156A (en) * 2015-05-14 2015-08-12 国网辽宁省电力有限公司丹东供电公司 Synthetic insulator simple ladder
CN105089487A (en) * 2015-09-07 2015-11-25 国网山东省电力公司烟台供电公司 Special portable power transmission line routing inspection rope ladder capable of being operated by single person
CN106786152A (en) * 2016-12-26 2017-05-31 国网山东省电力公司临沂供电公司 Can climbing type compound backup protection rope and its application method

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20131218