CN102790364A - Improved ladder head of rope ladder - Google Patents
Improved ladder head of rope ladder Download PDFInfo
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- CN102790364A CN102790364A CN2012102797156A CN201210279715A CN102790364A CN 102790364 A CN102790364 A CN 102790364A CN 2012102797156 A CN2012102797156 A CN 2012102797156A CN 201210279715 A CN201210279715 A CN 201210279715A CN 102790364 A CN102790364 A CN 102790364A
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- frame
- pulley
- ladder
- lower pulley
- yoke
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Abstract
The invention relates to an improved ladder head of a rope ladder used during power maintenance. The improved ladder head consists of an upper pulley yoke, a lower pulley yoke, an upper pulley and a lower pulley, wherein the upper pulley and the lower pulley are arranged in the upper pulley yoke and the lower pulley yoke. The improved ladder head is characterized in that the upper pulley yoke and the lower pulley yoke are spliced, are identical in structure and respectively consist of two parallel upright poles and a flat plate connected to upper ends of the two upright poles; and the upper pulley yoke and the lower pulley yoke have a same frame shape formed in such a way that the lower end of an upper end part is open. A locking device is arranged at the open end part of the frame-shaped lower pulley yoke. The upper pulley or the lower pulley is arranged in the frame; and pulley grooves are formed in the circumferences of the upper pulley and the lower pulley. A screw is screwed at the middle of one flat plate; the lower end of the screw penetrates through the corresponding flat plate; and a stop block is movably connected to the lower end of the screw and is positioned in the pulley groove of the upper pulley or the lower pulley. According to the technical scheme, the improved ladder head disclosed by the invention can be firmly fixed on the circuit; meanwhile, hanging points of the rope ladder can be locked, so that the safety of operators is ensured; and in addition, the phenomenon that the ladder head of the rope ladder slides is effectively avoided and the operation danger is reduced.
Description
Technical field
When the present invention relates to the maintenance of a kind of electric power, the improved rope ladder ladder head that climbing high-altitude circuit uses.
Background technology
Through these several years charged classes the use of rope ladder ladder head is found; Current rope ladder ladder head following several respects problem can occur in real work: at first; Hanging point owing to rope ladder ladder head when carrying out the rope ladder climbing is in an open state; So there is insecurity, the staff is in a tense situation psychologically all the time in the climbing process, and the speed of climbing will be very slow so.Because circuit is not straight line, has certain radian, so the ground staff needs 3-4 people stablize terraced head, in case because the unbalance stress of hanging point causes comes off.Secondly when the staff arrived the rope ladder ladder and starts working, in order to prevent the slip of rope ladder, the staff also need be with safety belt with a ladder colligation, and this has prolonged the activity duration once more, also makes the staff move inconvenience.At last, in the face of vertical double bundle conductor the time, because current rope ladder ladder head only is useful for the solid conductor operation, so bigger to the double bundle conductor workload.
Summary of the invention
The objective of the invention is to provides a kind of simple in structure to people, can fasteningly lock, and is applicable to the improved rope ladder ladder head of double bundle conductor.
The objective of the invention is to realize like this: improved rope ladder ladder head be by upper and lower pulley yoke, and the upper and lower pulley that is installed in the upper and lower pulley yoke is formed.It is characterized in that: both peg graft upper and lower pulley, and structure is identical, all are made up of two parallel vertical rods and the flat board that is connected on two vertical rods, and forming a upper end is the uncovered shaped as frame in lower end.Opening end place said lower sheave frame-saw shape is equiped with locking device.In shaped as frame, be equiped with top sheave or lower sheave, upper and lower pulley circumference is provided with race.Dull and stereotyped middle part is connected with screw rod, and flat board is passed in the screw rod lower end, and the active resistance position piece that is connected with, and resistance position piece is positioned at the race of aforementioned top sheave or lower sheave.
Because carry out technique scheme, the present invention can fixedly positioning on the line, can rope ladder hanging point locking be ensured operating personnel's safety simultaneously, and the phenomenon of effectively having avoided rope ladder ladder head to slide, it is dangerous to have reduced operation.
Description of drawings: technical scheme of the present invention is provided by following accompanying drawing and embodiment.
Fig. 1 is improved rope ladder ladder header structure sketch map;
Fig. 2 is the locking device structural representation.
Legend: 1, top sheave; 2, top sheave frame; 3, a resistance position piece, 4, lower sheave; 5, downslide wheel carrier, 6, locking device, 7, backguy, 8, screw rod, 9, axle, 10, return spring, 11, the backguy frame, 12, the locking frame.
Embodiment:
The present invention does not receive the restriction of following embodiment, can confirm concrete execution mode according to technical scheme of the present invention and actual conditions.
Embodiment: as shown in Figure 1, improved rope ladder ladder head is by upper and lower pulley yoke 2,5, and the upper and lower pulley 1,4 that is installed in the upper and lower pulley yoke 2,5 is formed.Both peg graft upper and lower pulley yoke 2,5, and structure is identical, all are made up of two parallel vertical rods and the flat board that is connected on two vertical rods, and forming a upper end is the uncovered shaped as frame in lower end.Opening end place at said downslide wheel carrier 5 shaped as frames is equiped with locking device 6, with this opening end sealing.In shaped as frame, be equiped with top sheave 1 or lower sheave 4, upper and lower pulley 1,4 circumference are provided with race.Be provided with jack in dull and stereotyped both sides, the jack place is provided with latch, and top sheave frame 2 lower ends insert in the said jack, and fix with latch, thereby upper and lower pulley yoke 2,5 is fixedly connected.Dull and stereotyped middle part is connected with screw rod 8, and flat board is passed in screw rod 8 lower ends, and the active resistance position piece 3 that is connected with; Resistance position piece 3 is positioned at the race of aforementioned top sheave 1 or lower sheave 4; Through turn screw rod 8, i.e. the upper-lower position of may command resistance position piece 3, thereby fixedly top sheave 1 or lower sheave 4.
As shown in Figure 2, locking device 6 is made up of backguy frame that is fixedly connected 11 and locking frame 12, and backguy frame 11 1 ends are uncovered, are connected with backguy 7 on it.Locking frame 12 is the herringbone frame, and lower end, locking frame 12 both sides is fixedly connected with the opening end both sides of backguy frame 11.Be installed with one 9 at the middle part of locking frame 12, be with return spring 10 on the axle 9.The vertical rod that said axle 9 passes downslide wheel carrier 5 is fixed on downslide wheel carrier 5 places with locking device, and return spring 10 1 ends are placed on the axle 9, and the other end is connected with the vertical rod of downslide wheel carrier 5.
During use, when in the enterprising capable operation of single circuit, can downslide wheel carrier 5 be only used in 2 cancellations of top sheave frame.The operating personnel drives backguy frame 11 and moves downward in ground pulling backguy 7, thereby the open topped end of downslide wheel carrier 5 is exposed in the 12 upwards upsets of pulling locking frame, this moment with lead by said opening end hang into, lower sheave 4 can with the lead sliding contact.Unclamp backguy, the locking device 6 at opening end place reverse flip voluntarily under the effect of return spring 10 with the opening end sealing, prevents that lead from dropping out when rocking.
The operating personnel is stepping on to the rope ladder top, through turn screw rod 8 be may command top sheave 1 or lower sheave 4 rotation whether, thereby confirm job position voluntarily.
When needs carry out operation on vertical double bundle conductor, top sheave frame 2 and downslide wheel carrier 5 are pegged graft, and fixing.The last lower wire of vertical double bundle conductor is hung respectively in the top shaped as frame of top sheave frame 2 and downslide wheel carrier 5, and passed through the locking of locking device 6, can ensure the high-level safety of operating personnel.
Above technical characterictic has constituted most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characterictic according to actual needs, satisfies the needs of different situations.
Claims (4)
1. an improved rope ladder ladder head be by upper and lower pulley yoke, and the upper and lower pulley that is installed in the upper and lower pulley yoke is formed; It is characterized in that: both peg graft upper and lower pulley, and structure is identical, all are made up of two parallel vertical rods and the flat board that is connected on two vertical rods; Forming a upper end is the uncovered shaped as frame in lower end, is equiped with locking device at the opening end place of said lower sheave frame-saw shape, in shaped as frame, is equiped with top sheave or lower sheave; Upper and lower pulley circumference is provided with race, and dull and stereotyped middle part is connected with screw rod, and flat board is passed in the screw rod lower end; And the active resistance position piece that is connected with, resistance position piece is positioned at the race of aforementioned top sheave or lower sheave.
2. improved rope ladder ladder head as claimed in claim 1; It is characterized in that: locking device is made up of the backguy frame and the locking frame that are fixedly connected, and backguy frame one end is uncovered, is connected with backguy on it; The locking frame is the herringbone frame; Lower end, locking frame both sides is fixedly connected with the opening end both sides of backguy frame, is installed with one at the middle part of locking frame, is with return spring on the axle.
3. improved rope ladder ladder head as claimed in claim 2 is characterized in that: the vertical rod that said axle passes the downslide wheel carrier, locking device is fixed on downslide wheel carrier place, and return spring one end is placed on the axle, and the other end is connected with the vertical rod of downslide wheel carrier.
4. improved rope ladder ladder head as claimed in claim 1, it is characterized in that: be provided with jack in dull and stereotyped both sides, the jack place is provided with latch, and top sheave frame lower end inserts in the said jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102797156A CN102790364A (en) | 2012-08-08 | 2012-08-08 | Improved ladder head of rope ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102797156A CN102790364A (en) | 2012-08-08 | 2012-08-08 | Improved ladder head of rope ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102790364A true CN102790364A (en) | 2012-11-21 |
Family
ID=47155693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102797156A Pending CN102790364A (en) | 2012-08-08 | 2012-08-08 | Improved ladder head of rope ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102790364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466795A (en) * | 2014-12-16 | 2015-03-25 | 云南电网有限责任公司昆明供电局 | Soft ladder frame with pulley and locking device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2376041B (en) * | 2001-05-30 | 2004-08-11 | Balfour Beatty Plc | Ladder arrangement |
| CN201294348Y (en) * | 2008-10-22 | 2009-08-19 | 江苏省电力公司无锡供电公司 | Rope ladder head grappling hook of divided conductor |
| CN201466571U (en) * | 2009-08-27 | 2010-05-12 | 河南省电力公司平顶山供电公司 | Automatic blocking rope ladder support of line working |
| CN201705195U (en) * | 2010-05-19 | 2011-01-12 | 辽宁省电力有限公司营口供电公司 | Anti-drop insulating ladder head |
| CN201771418U (en) * | 2010-08-04 | 2011-03-23 | 吉林省电力有限公司长春供电公司 | Automatic retaining device of insulating flexible ladder |
| CN201802298U (en) * | 2010-09-29 | 2011-04-20 | 新疆电力公司昌吉电业局 | Overhead power transmission line electrified ladder head locking device |
| CN202696057U (en) * | 2012-08-08 | 2013-01-23 | 新疆电力公司昌吉电业局 | Improved rope ladder head |
-
2012
- 2012-08-08 CN CN2012102797156A patent/CN102790364A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2376041B (en) * | 2001-05-30 | 2004-08-11 | Balfour Beatty Plc | Ladder arrangement |
| CN201294348Y (en) * | 2008-10-22 | 2009-08-19 | 江苏省电力公司无锡供电公司 | Rope ladder head grappling hook of divided conductor |
| CN201466571U (en) * | 2009-08-27 | 2010-05-12 | 河南省电力公司平顶山供电公司 | Automatic blocking rope ladder support of line working |
| CN201705195U (en) * | 2010-05-19 | 2011-01-12 | 辽宁省电力有限公司营口供电公司 | Anti-drop insulating ladder head |
| CN201771418U (en) * | 2010-08-04 | 2011-03-23 | 吉林省电力有限公司长春供电公司 | Automatic retaining device of insulating flexible ladder |
| CN201802298U (en) * | 2010-09-29 | 2011-04-20 | 新疆电力公司昌吉电业局 | Overhead power transmission line electrified ladder head locking device |
| CN202696057U (en) * | 2012-08-08 | 2013-01-23 | 新疆电力公司昌吉电业局 | Improved rope ladder head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466795A (en) * | 2014-12-16 | 2015-03-25 | 云南电网有限责任公司昆明供电局 | Soft ladder frame with pulley and locking device |
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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: 20121121 |