CN102518388A - Climbing ladder special for 500KV composite insulator - Google Patents

Climbing ladder special for 500KV composite insulator Download PDF

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Publication number
CN102518388A
CN102518388A CN201110458895XA CN201110458895A CN102518388A CN 102518388 A CN102518388 A CN 102518388A CN 201110458895X A CN201110458895X A CN 201110458895XA CN 201110458895 A CN201110458895 A CN 201110458895A CN 102518388 A CN102518388 A CN 102518388A
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CN
China
Prior art keywords
ratchet
tightening
bandlet
housing
gone
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Granted
Application number
CN201110458895XA
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Chinese (zh)
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CN102518388B (en
Inventor
苏建军
王肃
郭顺生
曾军
郭雷
王彬
孙瑞国
曾令甫
沈爱民
李洲
刘洪伟
常志伟
岳巍
周强
朱兆松
汪宪国
曾德淼
李纪辉
赵乔华
朱红魁
刘矞
冯迎春
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
Maintenance Branch of State Grid Shandong Electric Power Co Ltd
Original Assignee
ULTRA-HV Co OF SHANDONG ELECTRIC POWER Corp
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.)
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Publication date
Application filed by ULTRA-HV Co OF SHANDONG ELECTRIC POWER Corp filed Critical ULTRA-HV Co OF SHANDONG ELECTRIC POWER Corp
Priority to CN201110458895.XA priority Critical patent/CN102518388B/en
Publication of CN102518388A publication Critical patent/CN102518388A/en
Application granted granted Critical
Publication of CN102518388B publication Critical patent/CN102518388B/en
Active legal-status Critical Current
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Abstract

The invention discloses a climbing ladder special for a 500KV composite insulator. The climbing ladder comprises a bandlet, wherein two retracting devices are respectively arranged at the two ends of the bandlet; a first hook is arranged on the first retracting device; a second hook is arranged on the second retracting device; a plurality of foot pedals are arranged at the two ends of the bandlet in parallel; a steel cable is arranged on the bandlet; an anchoring hook is arranged on the steel cable; the first retracting device is formed by connecting a shell, a ratchet wheel, a shaft, retracting rollers, a torsional spring, ratchet spanners, a spring plate and a ratchet; the shaft is horizontally arranged on the shell; the two ends of the shaft pass through the shell left and right and are respectively provided with one ratchet spanner; a handle installation retracting roller is arranged between the two ratchet spanners; the retracting roller is arranged on the middle part of the shaft; the two ends of the bandlet are respectively connected with the retracting rollers of the first retracting device and the second retracting device; the ratchet wheel is arranged on the shaft; the ratchet is moveably arranged on the shell; the ratchet wheel and the ratchet are meshed; the spring plate is arranged on the shell; the torsional spring is arranged on the shaft; one end of the torsional spring is connected with the ratchet spanners, and the other end is connected with the shell; and a belt loosening handle is arranged on the ratchet.

Description

The 500KV synthetic insulator special ladder
Technical field
The present invention relates to a kind of 500KV synthetic insulator special ladder.
Background technology
Along with the quickening of power grid construction, in order to improve the reliability of electrical network, reduce the time of overhaul of the equipments in recent years, transmission line of electricity has been used a large amount of composite insulators.In composite insulator and lead maintenance process,, generally use rope ladder composite insulator up and down for the protection composite insulator does not receive artificial damage.But in this process, exist the drawback that can not be ignored: at first, rope ladder in use requires colligation firm, and rope ladder itself is heavier, is easy to hang when causing up and down rope ladder partially difficulty during the one man operation; In hanging the process of rope ladder, also to consider the problem of insulator length, swing back and forth having under the situation of wind, be difficult to make the rope ladder lower draw-bar to be suspended to the lead place, occasion a delay the time.Secondly, depending on composite insulator after the suspension of rope ladder is good, the operating personnel about in the rope ladder process; Cause the rope ladder local pressure excessive; Can make rope ladder be partial to composite insulator, in addition the gravity of human body will and composite insulator between produce bigger friction, cause the wearing and tearing of composite insulator full skirt.Once more, at the utilization rope ladder inspection composite insulation period of the day from 11 p.m. to 1 a.m,, can not improve and check on the quality because the suspension angles problem of rope ladder own is difficult to from multi-angle insulator carried out comprehensive inspection.The main cause that causes above-mentioned drawback is that the two ends of rope ladder can't be strained.
Summary of the invention
The object of the invention provides a kind of 500KV synthetic insulator special ladder, and it can be strained rope ladder, eliminates the drawback that existing cat ladder exists, thereby, can solve the problem that prior art exists.
The objective of the invention is to realize through following technical scheme: the 500KV synthetic insulator special ladder, comprise bandlet, the two ends of bandlet are installed first tightening device and second tightening device respectively, and the structure of first tightening device and second tightening device is symmetry fully; First hook is installed on first tightening device, second hook is installed on second tightening device; Several pedals of the parallel installation in the two ends of bandlet; Cable wire is installed at the middle part of bandlet, and grasp is installed on the cable wire; First tightening device by housing, ratchet, axle, tighten up roller, torsion spring, ratchet spanner, spring leaf and ratchet and connect and compose; Horizontal installation shaft on the housing passes housing about the two ends of axle a ratchet spanner respectively is installed outward, and mounting knob is installed and tightened up roller between two ratchet spanneres; The axle middle part is installed and is tightened up roller, and the two ends of bandlet are connected with the roller that tightens up of first tightening device and second tightening device respectively; Ratchet is installed on the axle, and ratchet is between housing and ratchet spanner, and ratchet is installed in activity on the housing, ratchet and ratchet engaged, and mounting spring sheet on the housing, spring leaf contact with ratchet and make ratchet compress ratchet; Torsion spring is installed on the axle, and an end of torsion spring is connected with ratchet spanner, and the other end is connected with housing; Pine band handle is installed on the ratchet.
For further realizing the object of the invention, can also adopt following technical scheme to realize: first hook is provided with first swivel nut, and first safety plug is installed in first swivel nut, and first safety plug is threaded with first swivel nut; Second hook is provided with second swivel nut, and second safety plug is installed on second swivel nut, and second safety plug is threaded with second swivel nut.Lower part of frame is installed carrying roller, and carrying roller can relatively rotate.
Good effect of the present invention is: two hanging points are arranged at its top, and a hanging point is arranged at the bottom, and hanging point forms stable triangle up and down, and cat ladder is difficult for rotation.It also is equipped with distinctive tightening device, when the suspension cat ladder, can open tightening device, emits sufficiently long bandlet, so that operating personnel are fixing with said cat ladder suspension.Last hanging point has installed safety plug additional, can prevent that hanging point from by coming off on the circuit, having improved safety factor.Tightening device can make the cat ladder can be exceptionally straight, and operating personnel are convenient safety up and down, has also avoided the damage to insulator simultaneously.Following hanging point adopts grasp, and lead in the easier hook has also improved stability simultaneously when descending hook.This cat ladder two ends all are provided with the fixedly hook of usefulness, after hanging up properly, can tighten up rope ladder through tightening device; Cat ladder is fixed by external force; No longer arbitrarily wave, thereby eliminated the hidden danger in the operation, reduced operating personnel's labour intensity; Improved operating efficiency, also avoided the wearing and tearing of rope ladder simultaneously composite insulator.It also has compactness simple for structure, cheap for manufacturing cost and advantages of simple operation.
Description of drawings
Fig. 1 is the structural representation of 500KV synthetic insulator special ladder according to the invention; Fig. 2 is the local structure for amplifying sketch map of the I of Fig. 1; Fig. 3 is the structural representation that Fig. 2 A-A analyses and observe amplification.
Reference numeral: 1 bandlet, 2 handles, 3 first necks of hook, 4 second necks of hook, 5 first hooks, 6 second hooks, 7 first safety plugs, 8 second safety plugs, 9 first swivel nuts, 10 second swivel nuts, 11 pedals, 12 cable wires, 13 grasps, 14 housings, 15 first tightening devices, 16 second tightening devices 17 tighten up 19 20 torsion springs of roller 18 ratchets, 21 carrying rollers, 22 ratchet spanneres, 23 ratchets, 24 spring leafs, 25 pine band handles.
The specific embodiment
500KV synthetic insulator special ladder of the present invention comprises bandlet 1, and the structure that the two ends of bandlet 1 are installed first tightening device 15 and second tightening device, 16, the first tightening devices 15 and second tightening device 16 respectively is symmetrical fully.First hook, 5, the first hooks 5 are installed on first tightening device 15 are connected with first tightening device 15, second hook, 6, the second hooks 6 are installed on second tightening device 16 are connected with second tightening device 16 through second neck of hook 4 through first neck of hook 3.Several pedals 11 of the parallel installation in the two ends of bandlet 1 are so that maintainer's climbing.Cable wire 12 is installed at the middle part of bandlet 1, and grasp 13 is installed on the cable wire 12.As shown in Figures 2 and 3, first tightening device 15 by housing 14, ratchet 18, axle 19, tighten up roller 17, torsion spring 20, ratchet spanner 22, spring leaf 24 and ratchet 23 and connect and compose.As shown in Figure 2, horizontal installation shaft 19 on the housing 14 passes the outer mounting knob of respectively installing between a ratchet spanner 22, two ratchet spanneres 22 of housing 14 and installs and tighten up roller 17 about axle 19 two ends.Axle 19 middle parts are installed and are tightened up roller 17, and the two ends of bandlet 1 are connected with the roller 17 that tightens up of first tightening device 15 and second tightening device 16 respectively.As shown in Figure 3, ratchet 18 is installed on the axle 19, ratchet 18 is between housing 14 and ratchet spanner 22; The movable ratchet 23 of installing on the housing 14; Ratchet 23 and ratchet 18 engagements, mounting spring sheet 24 on the housing 14, spring leaf 24 contact with ratchet 23 and make ratchet 23 compress ratchet 18.Torsion spring 20 is installed on the axle 19, and an end of torsion spring 20 is connected with ratchet spanner 22, and the other end is connected with housing 14; Pine band handle 25 is installed on the ratchet 23.
When hanging fixedly, pin pine band handle 25 earlier, ratchet 23 is separated with ratchet 18, can emit as far as possible this moment and tighten up the bandlet 1 that twines on the roller 17, make whole cat ladder elongation, so that suspension.After suspension is accomplished; In the time of need tightening cat ladder, the handle 2 that can press first tightening device 15 is to lower swing, and handle 2 drives axle 19 through ratchet spanner 22 and overcomes torsion spring 20 rotations; Axle 19 drives ratchet 18 and rotates, and 18 cooperations can prevent axle 19 and tighten up roller 17 counter-rotatings ratchet 23 with ratchet; When handle 2 was upwards swung, ratchet spanner 22 axle 19 relatively rotated, and does not rotate and can not drive axle 19; Press said process pivotal handle 2 up and down reciprocatingly, thereby the bandlet 1 of first tightening device, 15 1 ends is tightened up.By same principle, the handle of up and down reciprocatingly swinging on second tightening device 16 2 can be received the bandlet 1 of second tightening device, 16 ends, makes pedal 11 maintenance levels, so that operating personnel's climbing.
As shown in Figure 1, first hook 5 is provided with first swivel nut, 9, the first swivel nuts, 9 interior first safety plug, 7, the first safety plugs 7 of installing and is threaded with first swivel nut 9; Second hook 6 is provided with on second swivel nut, 10, the second swivel nuts 10 to be installed second safety plug, 8, the second safety plugs 8 and is threaded with second swivel nut 10.After being hung on first hook, 5 and second hook 6 on the lead, can rotating first safety plug 7 and second safety plug 8 respectively first hook, 5 and second hook 6 is locked on the lead.
For preventing to rub between bandlet 1 and the housing 14, as shown in Figure 2, carrying roller 21 is installed in the bottom of housing 14, and carrying roller 21 can relative 14 rotations.
The present invention not technology contents of detailed description is known technology.

Claims (3)

1.500KV synthetic insulator special ladder; It is characterized in that: comprise bandlet (1); The two ends of bandlet (1) are installed first tightening device (15) and second tightening device (16) respectively, and the structure of first tightening device (15) and second tightening device (16) is symmetry fully; First tightening device (15) is gone up first hook (5) is installed, and second tightening device (16) is gone up second hook (6) is installed; Several pedals of the parallel installation in two ends (11) of bandlet (1); Cable wire (12) is installed at the middle part of bandlet (1), and cable wire (12) is gone up grasp (13) is installed; First tightening device (15) by housing (14), ratchet (18), axle (19), tighten up roller (17), torsion spring (20), ratchet spanner (22), spring leaf (24) and ratchet (23) and connect and compose; Housing (14) is gone up horizontal installation shaft (19), passes about the two ends of axle (19) outside the housing (14) ratchet spanner (22) respectively is installed, and mounting knob is installed and tightened up roller (17) between two ratchet spanneres (22); Axle (19) middle part is installed and is tightened up roller (17), and the two ends of bandlet (1) are connected with the roller (17) that tightens up of first tightening device (15) and second tightening device (16) respectively; Axle (19) is gone up ratchet (18) is installed; Ratchet (18) is positioned between housing (14) and the ratchet spanner (22); Housing (14) is gone up the movable ratchet (23) of installing; Ratchet (23) and ratchet (18) engagement, housing (14) is gone up mounting spring sheet (24), and spring leaf (24) contacts with ratchet (23) and makes ratchet (23) compress ratchet (18); Axle (19) is gone up torsion spring (20) is installed, and an end of torsion spring (20) is connected with ratchet spanner (22), and the other end is connected with housing (14); Ratchet (23) is gone up pine band handle (25) is installed.
2. 500KV synthetic insulator special ladder according to claim 1; It is characterized in that: first hook (5) is provided with first swivel nut (9); First safety plug (7) is installed in first swivel nut (9), and first safety plug (7) is threaded with first swivel nut (9); Second hook (6) is provided with second swivel nut (10), and second swivel nut (10) is gone up second safety plug (8) is installed, and second safety plug (8) is threaded with second swivel nut (10).
3. 500KV synthetic insulator special ladder according to claim 1 is characterized in that: carrying roller (21) is installed in the bottom of housing (14), and carrying roller (21) (14) relatively rotates.
CN201110458895.XA 2011-12-31 2011-12-31 Climbing ladder special for 500KV composite insulator Active CN102518388B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110458895.XA CN102518388B (en) 2011-12-31 2011-12-31 Climbing ladder special for 500KV composite insulator

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CN102518388A true CN102518388A (en) 2012-06-27
CN102518388B CN102518388B (en) 2014-06-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742070A (en) * 2013-12-31 2014-04-23 苏州江南航天机电工业有限公司 Hanging ladder assembling unit
CN104033099A (en) * 2014-06-19 2014-09-10 国网四川省电力公司成都市新都供电分公司 Slipping safety belt type jumper installing station climbing rack
CN105261998A (en) * 2015-11-12 2016-01-20 广西电网有限责任公司贺州供电局 Offline hanging ladder especially used for suspension-type composite insulator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1184772A (en) * 1996-12-09 1998-06-17 仲建元 Arrangement for preventing persons from falling down for lifting equipment
US6742973B1 (en) * 2002-05-14 2004-06-01 Carl M. Hendrix Carrying apparatus, device and method for use
CN201152141Y (en) * 2007-11-30 2008-11-19 泰安供电公司 Dedicated rope ladder for replacing synthetic electrical insulator
CN201285999Y (en) * 2008-09-26 2009-08-05 宁夏电力公司超高压电网运行分公司 Soft ladder for high voltage line maintenance
CN102052052A (en) * 2010-12-08 2011-05-11 河南省电力公司许昌供电公司 Foldable and telescopic rope ladder
CN202467624U (en) * 2011-12-31 2012-10-03 山东电力集团公司超高压公司 Special climbing ladder for 500kV composite insulator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1184772A (en) * 1996-12-09 1998-06-17 仲建元 Arrangement for preventing persons from falling down for lifting equipment
US6742973B1 (en) * 2002-05-14 2004-06-01 Carl M. Hendrix Carrying apparatus, device and method for use
CN201152141Y (en) * 2007-11-30 2008-11-19 泰安供电公司 Dedicated rope ladder for replacing synthetic electrical insulator
CN201285999Y (en) * 2008-09-26 2009-08-05 宁夏电力公司超高压电网运行分公司 Soft ladder for high voltage line maintenance
CN102052052A (en) * 2010-12-08 2011-05-11 河南省电力公司许昌供电公司 Foldable and telescopic rope ladder
CN202467624U (en) * 2011-12-31 2012-10-03 山东电力集团公司超高压公司 Special climbing ladder for 500kV composite insulator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742070A (en) * 2013-12-31 2014-04-23 苏州江南航天机电工业有限公司 Hanging ladder assembling unit
CN103742070B (en) * 2013-12-31 2018-02-16 苏州江南航天机电工业有限公司 A kind of hanging ladder sub-assembly
CN104033099A (en) * 2014-06-19 2014-09-10 国网四川省电力公司成都市新都供电分公司 Slipping safety belt type jumper installing station climbing rack
CN104033099B (en) * 2014-06-19 2015-10-28 国网四川省电力公司成都市新都供电分公司 Erect-position climbing frame installed by slippage safety band type wire jumper
CN105261998A (en) * 2015-11-12 2016-01-20 广西电网有限责任公司贺州供电局 Offline hanging ladder especially used for suspension-type composite insulator

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