CN201260051Y - Anti-dropping soft ladder for overhead line operation - Google Patents
Anti-dropping soft ladder for overhead line operation Download PDFInfo
- Publication number
- CN201260051Y CN201260051Y CNU2008201904357U CN200820190435U CN201260051Y CN 201260051 Y CN201260051 Y CN 201260051Y CN U2008201904357 U CNU2008201904357 U CN U2008201904357U CN 200820190435 U CN200820190435 U CN 200820190435U CN 201260051 Y CN201260051 Y CN 201260051Y
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- Prior art keywords
- rope ladder
- hanger
- hook
- rope
- transmission line
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- Expired - Lifetime
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Abstract
Disclosed is a drop-preventing jack ladder for overhead line operation, which belongs to the working tools used in high altitude operation. A transversal bar (2) is fixed between two jack ladder brackets (1); a bracket hook (4) with a downward opening is arranged at the upper end of the two jack ladder brackets (1); and a locking device (6) is arranged at the hook mouth position of one or two bracket hooks (4). The problem is solved that the people can be fall off from high altitude due to the self structure defect of the jack ladder or due to the miss operation in the process of climbing and descending. The drop-preventing jack ladder structure is simple; the manufacture cost is low; the drop-preventing jack ladder is applied to the power transmission line construction at high altitude and is also applied to the optical fiber overhead line construction; the application is wide; and the drop-preventing jack ladder is secure and reliable.
Description
Technical field
The utility model relates to the rope ladder that falls in anti-high-altitude that a kind of overhead transmission line live line working uses.Belong to the work high above the ground apparatus.
Background technology
The overhead transmission line live line working is carried out existing nearly 40 years history in China, adopting rope ladder equal potential working method to enter high electric field is the method for using always, but in operating personnel's climbing and following rope ladder process, the device that falls in anti-personal high-altitude is not well solved always.Chinese patent notification number: CN 200987049Y, the day for announcing: on December 5th, 2007, utility model title " the charged processing operation insulated flexible ladder of lead wire and earth wire and Optical Fiber Composite type overhead wire ", proposed to comprise the insulated flexible ladder frame, the insulated flexible ladder head, chute hook socket, the rope ladder that arranged type roller and rope ladder rope etc. are formed.Because a plurality of roller pressure are uniform, significantly reduced the pressure of Optical Fiber Composite type overhead transmission line, avoid optical fiber impaired, improved the charged processing processing safety and the maintaining efficient of lead wire and earth wire and Optical Fiber Composite type overhead wire, use more convenient.But the rope ladder head of the type rope ladder and chute hook socket are open architectures, when lead wire and earth wire and optical cable are waved up and down, can deviate from from the chute hook, or the operating personnel climb and following rope ladder process in accidentally drop, cause the fall serious accident of death of operating personnel high-altitude.
Summary of the invention
The purpose of this utility model be overcome in the prior art that rope ladder head easily comes off and the operating personnel climb and following rope ladder process in accidentally drop, the defective of safety and reliability difference and deficiency provide a kind of overhead transmission line operation fall arrest rope ladder.It securely ring set on lead wire and earth wire or optical cable, have simultaneously prevent the operating personnel climb and following rope ladder process in the two-way latch-up characteristic of accidentally dropping, simple in structure, cost of manufacture is low, and is safe and reliable.
Technical solution of the present utility model is: overhead transmission line operation fall arrest rope ladder, between two rope ladder supports, be fixed with whippletree, the upper end of two rope ladder supports is provided with the hanger that Open Side Down, the installed inside of propping up the hanger top has moving runner, the lower end of rope ladder support connects the rope ladder rope, and the mouth of hook position of described one or two hanger is provided with locking device.
Described locking device is made up of rod member and spring, and an end of rod member is hinged on the rope ladder support, and the other end of rod member points to the mouth of hook inboard of a hanger and is pressed against through spring on the inwall of a hanger mouth of hook.
The mouth of hook of described two hangers is symmetrically distributed in the both sides of whippletree.
Described hanger formed by the upper end bending of rope ladder support.
The rope ladder support arranged outside of described arbitrary hanger below has two-way manual fall arrest protector.
The beneficial effects of the utility model are: 1, install the locking device that an anti-rope ladder hook breaks away from lead additional at the opening part of hanger, and can prevent that rope ladder from use deviating from from lead, guaranteed the reliability that rope ladder is connected with lead.2, the mouth of hook of a hanger is symmetrically distributed in the both sides of whippletree, and when rope ladder rocked, the mouth of hook was difficult for breaking away from lead, has increased the fail safe of a hanger when lead rotates.3, in rope ladder support arranged outside two-way manual anti-falling protection device is arranged, be used for installing the protection rope, directly the workmen is prevented the safeguard protection of falling in the high-altitude, guarantee workmen's personal safety.4, the utility model solved owing to the structure problem of rope ladder own or operating personnel climb and following rope ladder process in the personal high-altitude that causes of an operate miss difficult problem of falling.Simple in structure, cost of manufacture is low, is suitable for the work high above the ground construction of transmission line, also is suitable for the construction of work high above the ground such as overhead transmission line optical cable, and the scope of application is wide, the security reliability height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, rope ladder support 1, whippletree 2, rope ladder rope 3, hanger 4, moving runner 5, locking device 6, two-way manual fall arrest protector 7 is led, ground wire 8.
Embodiment
The present invention is described in further detail below in conjunction with description of drawings and embodiment:
Referring to Fig. 1, overhead transmission line operation fall arrest rope ladder of the present utility model, between two rope ladder supports 1, be fixed with whippletree 2, the upper end of two rope ladder supports 1 is provided with the hanger 4 that Open Side Down, the installed inside of propping up hanger 4 tops has moving runner 5, the lower end of rope ladder support 2 connects rope ladder rope 3, and the mouth of hook position of described one or two hanger 4 is provided with locking device 6.The opening portion of hanger 4 install additional one prevent to break away from lead, the locking device 6 of ground wire 8, can prevent whole rope ladder support 1 in use from lead, ground wire 8 deviates from.
The form of described locking device 6 can be various, and its simple structure is made up of rod member and spring, and an end of rod member is hinged on the rope ladder support 1, and the other end of rod member points to the mouth of hook inboard of a hanger 4 and is pressed against through spring on the inwall of hanger 4 mouth of hook.
The mouth of hook of described two hangers 4 equality is in the same way arranged, for increase hanger 4 and lead, reliability that ground wire 8 is connected and prevent to lead, ground wire 8 deviates from from the mouth of hook that props up hanger 4, preferably makes described two mouths of hook that prop up hangers 4 be symmetrically distributed in the both sides of whippletree 2.Two mouth of hook reversed arrangement make and lead, ground wire 8 is not easy to break away from a hanger 4.
Prop up hanger 4 and rope ladder support 1 and can be made into the branch body structure, interconnect then, preferably both are made one, a promptly described hanger 4 can be formed by the upper end bending of rope ladder support 1.To reduce the security risk that syndeton was caused.
For guarantee the operating personnel climb and following rope ladder process in personnel's safety, can be further described any rope ladder support 1 that props up below hanger 4 be provided with two-way manual fall arrest protector 7.As installing one group of link additional on rope ladder support 1, the necessary firm and vertical rope ladder direction of link is installed the manual anti-falling protection device 7 that can commutate by hand in the link both sides.Manually anti-falling protection device 7 can adopt general structure, generally requires the shock resistance load to be not less than 400 kilograms.
During use, two on the rope ladder hangers 4 are suspended to lead, on the ground wire 8, the locking device 6 unidirectional automatic blockings at hanger 4 mouth of hook place, prevent a hanger 4 and rope ladder in use from lead, ground wire 8 deviates from.At this moment the moving runner 5 that is fixed on hanger 4 inside top drops on and leads, ground wire 8 tops, make rope ladder can along lead, ground wire 8 moves.The fall coaster of when extracing a hanger 4 and rope ladder, can utilize extensions, plucking rope ladder is opened the rod member on the locking device 6, leads, ground wire 8 can deviate from from the mouth of hook that props up hanger 4, and rope ladder can be extractd.
Claims (5)
1. overhead transmission line operation fall arrest rope ladder, between two rope ladder supports (1), be fixed with whippletree (2), the upper end of two rope ladder supports (1) is provided with the hanger (4) that Open Side Down, the installed inside of propping up hanger (4) top has moving runner (5), the lower end of rope ladder support (2) connects rope ladder rope (3), and it is characterized in that: the mouth of hook position of described one or two hanger (4) is provided with locking device (6).
2. overhead transmission line operation fall arrest rope ladder according to claim 1, it is characterized in that: described locking device (6) is made up of rod member and spring, one end of rod member is hinged on the rope ladder support (1), and the other end of rod member points to the mouth of hook inboard of a hanger (4) and is pressed against through spring on the inwall of hanger (a 4) mouth of hook.
3. overhead transmission line operation fall arrest rope ladder according to claim 1 is characterized in that: the mouth of hook of described two hangers (4) is symmetrically distributed in the both sides of whippletree (2).
4. according to claim 1 or 3 described overhead transmission line operation fall arrest rope ladders, it is characterized in that: described hanger (4) formed by the upper end bending of rope ladder support (1).
5. overhead transmission line operation fall arrest rope ladder according to claim 1 is characterized in that: rope ladder support (1) arranged outside of described any hanger (4) below has two-way manual fall arrest protector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201904357U CN201260051Y (en) | 2008-08-22 | 2008-08-22 | Anti-dropping soft ladder for overhead line operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201904357U CN201260051Y (en) | 2008-08-22 | 2008-08-22 | Anti-dropping soft ladder for overhead line operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260051Y true CN201260051Y (en) | 2009-06-17 |
Family
ID=40774288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201904357U Expired - Lifetime CN201260051Y (en) | 2008-08-22 | 2008-08-22 | Anti-dropping soft ladder for overhead line operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201260051Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908739A (en) * | 2010-07-22 | 2010-12-08 | 吉林省电力有限公司吉林供电公司 | Trolley used for maintenance of electricity overhead power transmission line |
| CN102064497A (en) * | 2010-12-06 | 2011-05-18 | 衡水供电公司 | Special pulley for automatic suspension and method for suspending insulating flexible ladder using the same |
| CN102290736A (en) * | 2011-05-09 | 2011-12-21 | 辽宁省电力有限公司沈阳供电公司 | Maintenance board ladder for 220KV overhead ground wire |
| CN102664371A (en) * | 2010-12-06 | 2012-09-12 | 衡水供电公司 | Method for hanging and dismounting insulated flexible ladder by using automatically-hung special tackle |
| CN102694350A (en) * | 2012-06-01 | 2012-09-26 | 石家庄供电公司 | Special cleaner for removing foreign matters on overhead ground leads |
| CN104064974A (en) * | 2014-07-02 | 2014-09-24 | 国家电网公司 | Transformer substation double bus balance enclosure insulating ladder |
| CN104518454A (en) * | 2014-12-24 | 2015-04-15 | 国家电网公司 | Ladder head with remote control shutting device |
| CN105429046A (en) * | 2015-12-17 | 2016-03-23 | 国家电网公司 | Rope ladder head used for equipotential live working and application method therefor |
| CN105645276A (en) * | 2016-04-08 | 2016-06-08 | 成都科力夫科技有限公司 | Electric trolley provided with rope ladder |
| CN107605394A (en) * | 2017-09-07 | 2018-01-19 | 国家电网公司 | A kind of livewire work single pendulum adjustable type rope ladder head device and its application method |
-
2008
- 2008-08-22 CN CNU2008201904357U patent/CN201260051Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908739B (en) * | 2010-07-22 | 2012-06-27 | 吉林省电力有限公司吉林供电公司 | Trolley used for maintenance of electricity overhead power transmission line |
| CN101908739A (en) * | 2010-07-22 | 2010-12-08 | 吉林省电力有限公司吉林供电公司 | Trolley used for maintenance of electricity overhead power transmission line |
| CN102664371B (en) * | 2010-12-06 | 2014-06-11 | 国家电网公司 | Method for hanging and dismounting insulated flexible ladder by using automatically-hung special tackle |
| CN102064497A (en) * | 2010-12-06 | 2011-05-18 | 衡水供电公司 | Special pulley for automatic suspension and method for suspending insulating flexible ladder using the same |
| CN102064497B (en) * | 2010-12-06 | 2012-08-15 | 衡水供电公司 | Special pulley for automatic suspension and method for suspending insulating flexible ladder using the same |
| CN102664371A (en) * | 2010-12-06 | 2012-09-12 | 衡水供电公司 | Method for hanging and dismounting insulated flexible ladder by using automatically-hung special tackle |
| CN102290736A (en) * | 2011-05-09 | 2011-12-21 | 辽宁省电力有限公司沈阳供电公司 | Maintenance board ladder for 220KV overhead ground wire |
| CN102694350A (en) * | 2012-06-01 | 2012-09-26 | 石家庄供电公司 | Special cleaner for removing foreign matters on overhead ground leads |
| CN102694350B (en) * | 2012-06-01 | 2015-05-27 | 国家电网公司 | Special cleaner for removing foreign matters on overhead ground leads |
| CN104064974A (en) * | 2014-07-02 | 2014-09-24 | 国家电网公司 | Transformer substation double bus balance enclosure insulating ladder |
| CN104518454A (en) * | 2014-12-24 | 2015-04-15 | 国家电网公司 | Ladder head with remote control shutting device |
| CN105429046A (en) * | 2015-12-17 | 2016-03-23 | 国家电网公司 | Rope ladder head used for equipotential live working and application method therefor |
| CN105645276A (en) * | 2016-04-08 | 2016-06-08 | 成都科力夫科技有限公司 | Electric trolley provided with rope ladder |
| CN107605394A (en) * | 2017-09-07 | 2018-01-19 | 国家电网公司 | A kind of livewire work single pendulum adjustable type rope ladder head device and its application method |
| CN107605394B (en) * | 2017-09-07 | 2019-07-02 | 国家电网公司 | A kind of livewire work single pendulum adjustable type rope ladder head device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |