CN102817552A - Direct-current 500kV circuit lower composite insulator flexible ladder - Google Patents
Direct-current 500kV circuit lower composite insulator flexible ladder Download PDFInfo
- Publication number
- CN102817552A CN102817552A CN2012103329100A CN201210332910A CN102817552A CN 102817552 A CN102817552 A CN 102817552A CN 2012103329100 A CN2012103329100 A CN 2012103329100A CN 201210332910 A CN201210332910 A CN 201210332910A CN 102817552 A CN102817552 A CN 102817552A
- Authority
- CN
- China
- Prior art keywords
- suspender belt
- hanging
- ratchet
- spool
- groove
- 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.)
- Granted
Links
Images
Abstract
The invention relates to the field of maintenance operation on an electric pole and tower, and in particular relates to a direct-current 500kV circuit lower composite insulator flexible ladder which comprises upper hanging points, a lower single hook, a hanging belt and a pedal cross tie. The direct-current 500kV circuit lower composite insulator flexible ladder is characterized in that the upper hanging points are dual hanging points; the two upper hanging points are connected by an insulation plate bar; the lower single hook has a width of 150-200mm, and the pedal cross tie has a width of 300-350mm; each upper hanging point comprises a hanging body, a hanging belt winding shaft and a winding shaft positioning device; the hanging body corresponding to a cross arm is provided with an opening; the hanging belt winding shaft is movably connected with the hanging body; one end of the hanging belt winding shaft is a polygonal head part, and the other end of the hanging belt winding shaft is connected with the winding shaft positioning device; the hanging belt winding shaft is provided with a through groove; and the end part of the hanging belt is fixed on the through groove. Compared with the prior art, the direct-current 500kV circuit lower composite insulator flexible ladder provided by the invention has the beneficial effects that a dual-hanging-point structure is adopted, the rotation prevention performance of the flexible ladder is increased, the rotation and shaking for the overhauling personnel in descending the ladder are relieved, and the falling down and casualty accidents of the overhauling personnel caused by panic is prevented.
Description
Technical field
The present invention relates to maintenance activity field of tool on the electric force pole tower, relate in particular to composite insulator rope ladder under a kind of direct current 500kV circuit.
Background technology
The following composite insulator rope ladder of present domestic use, the upper end that is mostly of employing is the structure of single hook for single hanging point, lower end.During use, earlier the lower end is hooked on the lead, the upper end is hooked on the cross-arm angle steel, tightens up suspender belt then and can supply maintainer's edge ladder to descend.Its weak point is, rotates easily and rocks during following rope ladder, causes the scaler panic, exists great potential safety hazard.
Summary of the invention
The object of the present invention is to provide composite insulator rope ladder under a kind of direct current 500kV circuit, the rotation problem when avoiding descending stair is convenient to install, and is safe and reliable.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Composite insulator rope ladder under the direct current 500kV circuit; Comprise hanging point, the hook that places an order, suspender belt and foot-operated beam; The said hanging point of going up is a double hanging point, goes up between the hanging point for two to link to each other through the insulation laths, and the hook width that places an order is that 150-200mm, foot-operated beam width are 300-350mm;
Last hanging point comprises hanging body, suspender belt spool and spool positioner; Corresponding cross-arm is provided with gap on the hanging body; Suspender belt spool and hanging body flexibly connect, and an end of suspender belt spool is a polygonal head, and the other end of suspender belt spool links to each other with the spool positioner; The suspender belt spool is provided with groove, and the suspender belt end is fixed on the groove;
Said spool positioner comprises cover cap, ratchet, ratchet and swing handle; Ratchet is located at the other end of suspender belt spool, and cover cap is provided with ratchet, is provided with spring between ratchet and the cover cap; Swing handle is located at the tail end of ratchet; Cover cap is with after hanging body is connected, and the head end of ratchet is embedded between the outer rim groove of ratchet, stops the rotation of suspender belt spool to realize the location.
One side of said swing handle is provided with the pointed projections of location usefulness, and corresponding cover cap place is provided with groove, when pointed projections falls into groove; The relative cover cap of suspender belt spool is fixed and can not rotates; When mentioning swing handle when pointed projections and groove are broken away from, the suspender belt spool is promptly rotatable, realizes that the degree of tightness of suspender belt is regulated.
Said foot-operated beam comprises insulated pipes used, end cap and suspender belt fixed strip, and the insulated pipes used two ends are provided with end cap, and insulated pipes used inside is provided with the suspender belt fixed strip, and the two ends of suspender belt fixed strip are fixedly connected with two suspender belts that run through insulated pipes used respectively.
Compared with prior art; The invention has the beneficial effects as follows: owing to adopt the double hanging point structure; Increased the anti-rotation performance of rope ladder, the generation of maintainer lest the casualty accident of falling that causes unbearably avoided in the rotation when having alleviated maintainer's descending stair and rocking; Unit Installation is easier simultaneously, regulates more convenient.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.
Fig. 2 is the left view of Fig. 1;
Fig. 3 be Fig. 2 along A-A line sectional view;
Fig. 4 is along B-B line sectional view among Fig. 2.
Wherein: the last hanging point 2-of the 1-foot-operated beam 5-insulation of the hook 3-suspender belt 4-lath 6-hanging body 7-suspender belt spool 8-spool positioner 9-cross-arm angle steel 10-gap 11-groove 12-cover cap 13-ratchet 14-ratchet 15-swing handle 16-spring 17-pointed projections 18-groove 19-insulated pipes used 20-end cap 21-suspender belt fixed strip 22-lead that places an order
The specific embodiment
Be described further below in conjunction with the accompanying drawing specific embodiments of the invention:
Seeing Fig. 1, Fig. 2, Fig. 3, is composite insulator rope ladder example structure sketch map under the direct current 500kV circuit of the present invention, comprises hanging point 1, the hook 2 that places an order, suspender belt 3 and foot-operated beam 4; Last hanging point 1 is a double hanging point; Go up the lath 5 that passes through between the hanging point 1 to insulate for two and link to each other, insulation lath 5 is provided with slotted hole, can realize two adjustings of going up distance between the hanging point 1; In order to improve the anti-rotation performance of rope ladder, hook 2 width that place an order are that 150-200mm, foot-operated beam 4 width are 300-350mm; During use, the hook 2 that places an order is hooked on the lead 22, and last hanging point 1 hangs on the cross-arm angle steel 9.
Last hanging point comprises hanging body 6, suspender belt spool 7 and spool positioner 8, and corresponding cross-arm angle steel 9 places are provided with gap 10 on the hanging body 6, and suspender belt spool 7 flexibly connects with hanging body 6; Suspender belt spool 7 hanging body 6 rotations relatively, in order to make suspender belt spool 7 convenient rotations, an end of suspender belt spool 7 is a polygonal head; The other end of suspender belt spool 7 links to each other with spool positioner 8; Suspender belt spool 7 is provided with groove 11, and suspender belt 3 ends are fixed on the groove 11, thereby realizes that suspender belt 3 twines around suspender belt spool 7;
Spool positioner 8 comprises cover cap 12, ratchet 13, ratchet 14 and swing handle 15; Ratchet 14 is located at the other end of suspender belt spool 7, and cover cap 12 is provided with ratchet 13, is provided with spring 16 between ratchet 13 and the cover cap 12; Swing handle 15 is located at the tail end of ratchet 13; Cover cap 12 is with after hanging body 6 is connected, and the head end of ratchet 13 is embedded between the outer rim groove of ratchet 14, stops 7 rotations of suspender belt spool to realize the location.
One side of swing handle 15 is provided with the pointed projections 17 of location usefulness, and corresponding cover cap 12 places are provided with groove 18, when pointed projections 17 falls into groove 18; The head end of ratchet 13 contacts with ratchet 14 surfaces; Suspender belt spool 7 relative cover caps 12 are fixed and can not rotate, and when mentioning swing handle 15 when pointed projections 17 is broken away from groove 18, suspender belt spool 7 is promptly rotatable; Thereby realize the length adjustment of suspender belt 3, rope ladder is strained between cross-arm angle steel 9 and lead 22.
See Fig. 4, foot-operated beam 4 comprises insulated pipes used 19, end cap 20 and suspender belt fixed strip 21, and insulated pipes used 19 two ends are provided with end cap 20; Insulated pipes used 19 inside are provided with suspender belt fixed strip 21; The two ends of suspender belt fixed strip 21 are fixedly connected with two suspender belts 3 that run through insulated pipes used 19 respectively, and general the employing sewed up connection, also can adopt connected modes such as bolt; Suspender belt fixed strip 21 can make the fixed distance between the adjacent foot-operated beam, and increases the bonding strength between suspender belt and the foot-operated beam.
Claims (3)
1. composite insulator rope ladder under the direct current 500kV circuit; Comprise hanging point, the hook that places an order, suspender belt and foot-operated beam, it is characterized in that said to go up hanging point be double hanging point; Go up the lath that passes through between the hanging point to insulate for two and link to each other, the hook width that places an order is that 150-200mm, foot-operated beam width are 300-350mm;
Last hanging point comprises hanging body, suspender belt spool and spool positioner; Corresponding cross-arm is provided with gap on the hanging body; Suspender belt spool and hanging body flexibly connect, and an end of suspender belt spool is a polygonal head, and the other end of suspender belt spool links to each other with the spool positioner; The suspender belt spool is provided with groove, and the suspender belt end is fixed on the groove;
Said spool positioner comprises cover cap, ratchet, ratchet and swing handle; Ratchet is located at the other end of suspender belt spool, and cover cap is provided with ratchet, is provided with spring between ratchet and the cover cap; Swing handle is located at the tail end of ratchet; Cover cap is with after hanging body is connected, and the head end of ratchet is embedded between the outer rim groove of ratchet, stops the rotation of suspender belt spool to realize the location.
2. composite insulator rope ladder under the direct current 500kV circuit according to claim 1 is characterized in that, a side of said swing handle is provided with the pointed projections of location usefulness; Corresponding cover cap place is provided with groove; When pointed projections fell into groove, the relative cover cap of suspender belt spool was fixed and can not rotates, when mentioning swing handle when pointed projections and groove are broken away from; The suspender belt spool is promptly rotatable, realizes that the degree of tightness of suspender belt is regulated.
3. composite insulator rope ladder under the direct current 500kV circuit according to claim 1; It is characterized in that; Said foot-operated beam comprises insulated pipes used, end cap and suspender belt fixed strip; The insulated pipes used two ends are provided with end cap, and insulated pipes used inside is provided with the suspender belt fixed strip, and the two ends of suspender belt fixed strip are fixedly connected with two suspender belts that run through insulated pipes used respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332910.0A CN102817552B (en) | 2012-09-10 | 2012-09-10 | Direct-current 500kV circuit lower composite insulator flexible ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332910.0A CN102817552B (en) | 2012-09-10 | 2012-09-10 | Direct-current 500kV circuit lower composite insulator flexible ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102817552A true CN102817552A (en) | 2012-12-12 |
| CN102817552B CN102817552B (en) | 2014-12-31 |
Family
ID=47301958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210332910.0A Active CN102817552B (en) | 2012-09-10 | 2012-09-10 | Direct-current 500kV circuit lower composite insulator flexible ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817552B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403854A (en) * | 2018-09-07 | 2019-03-01 | 国网浙江慈溪市供电有限公司 | Transmission line of electricity tightens enclosed type rope ladder |
| CN111064153A (en) * | 2020-02-25 | 2020-04-24 | 国网山东省电力公司单县供电公司 | Auxiliary support for installing power conductor fittings |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125308U (en) * | 1986-02-01 | 1987-08-08 | ||
| CN201312078Y (en) * | 2008-11-06 | 2009-09-16 | 华北电网有限公司大同超高压供电公司 | Insulating flexible ladder head for equal potential operation in 500KV transmission lines |
| CN201523179U (en) * | 2009-10-24 | 2010-07-07 | 华北电网有限公司大同超高压供电公司 | Insulation rope ladder with anti-falling device for high voltage transmission line live work |
| CN201705193U (en) * | 2010-05-31 | 2011-01-12 | 河南省电力公司三门峡供电公司 | Dedicated flexible ladder used for replacing insulators |
| CN202745679U (en) * | 2012-09-10 | 2013-02-20 | 辽宁省电力有限公司鞍山供电公司 | Composite insulator rope ladder under DC (direct current) 500kV line |
-
2012
- 2012-09-10 CN CN201210332910.0A patent/CN102817552B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125308U (en) * | 1986-02-01 | 1987-08-08 | ||
| CN201312078Y (en) * | 2008-11-06 | 2009-09-16 | 华北电网有限公司大同超高压供电公司 | Insulating flexible ladder head for equal potential operation in 500KV transmission lines |
| CN201523179U (en) * | 2009-10-24 | 2010-07-07 | 华北电网有限公司大同超高压供电公司 | Insulation rope ladder with anti-falling device for high voltage transmission line live work |
| CN201705193U (en) * | 2010-05-31 | 2011-01-12 | 河南省电力公司三门峡供电公司 | Dedicated flexible ladder used for replacing insulators |
| CN202745679U (en) * | 2012-09-10 | 2013-02-20 | 辽宁省电力有限公司鞍山供电公司 | Composite insulator rope ladder under DC (direct current) 500kV line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403854A (en) * | 2018-09-07 | 2019-03-01 | 国网浙江慈溪市供电有限公司 | Transmission line of electricity tightens enclosed type rope ladder |
| CN111064153A (en) * | 2020-02-25 | 2020-04-24 | 国网山东省电力公司单县供电公司 | Auxiliary support for installing power conductor fittings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102817552B (en) | 2014-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205123185U (en) | Non -maintaining insulator wire fixation clamp | |
| CN202490344U (en) | Anti-falling device | |
| CN102583198A (en) | Overhauling platform for wind turbine blade | |
| CN203481420U (en) | Grounding wire device used for power transmission line overhauling | |
| CN102817552A (en) | Direct-current 500kV circuit lower composite insulator flexible ladder | |
| CN202023497U (en) | Special rope ladder between tower and lead | |
| CN103274311B (en) | The rotary arm of pole type transformer | |
| CN202745679U (en) | Composite insulator rope ladder under DC (direct current) 500kV line | |
| CN201118145Y (en) | Powerline aerial spanning device | |
| CN201868790U (en) | Insulating gap bridge for repairing power lines | |
| CN201355750Y (en) | Rotating insulated ladder for operation on live distribution lines | |
| CN209722964U (en) | A kind of electric operating earth anchor | |
| CN204205428U (en) | The special line lifter of wire | |
| CN203932808U (en) | Replacing insulator under electrified wire lifting device | |
| CN103247966A (en) | High-voltage aerial work elevator | |
| CN203345975U (en) | Installation device of hoisting steel wire rope and tower crane | |
| CN102629744B (en) | Wire releasing and tightening operation platform of pole and tower | |
| CN203114144U (en) | Overhung maintenance hook ladder | |
| CN102518388B (en) | Climbing ladder special for 500KV composite insulator | |
| CN202165003U (en) | Antiskid device for insulating flexible ladder head | |
| CN203774680U (en) | Pole climbing-used portable treading board | |
| CN204118374U (en) | The earth lead point protection device in succession of earth connection | |
| CN210517734U (en) | Anti-slip clamping plate for anti-vibration hammer | |
| CN102923603A (en) | Automatic controller of tail rope of winching machine | |
| CN204156408U (en) | A kind of conduction wire riser for changing linear string insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |