CN204190271U - A kind of overhead ground wire line of fall device - Google Patents
A kind of overhead ground wire line of fall device Download PDFInfo
- Publication number
- CN204190271U CN204190271U CN201420696232.0U CN201420696232U CN204190271U CN 204190271 U CN204190271 U CN 204190271U CN 201420696232 U CN201420696232 U CN 201420696232U CN 204190271 U CN204190271 U CN 204190271U
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- ground wire
- overhead ground
- fixed pulley
- support
- fixed
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Abstract
The utility model discloses a kind of overhead ground wire line of fall device, comprise the first fixed pulley, draw-gear, second fixed pulley, first support, second support, 3rd fixed pulley and puller strap, wherein, first fixed pulley is fixed on the top hanging angle steel, be fixedly connected with one end of overhead ground wire after the first fixed pulley walked around from bottom to top by draw-gear, first support is fixed on the side hanging angle steel, second fixed pulley is fixed on support, second Bracket setting is on transmission line, 3rd fixed pulley is fixing on the secondary support bracket, one end of puller strap is fixed on and hangs on angle steel and be positioned at the below of overhead ground wire, puller strap along transmission line arranged outside and around on the second fixed pulley and the 3rd fixed pulley, and its other end fixes the bottom of shaft tower, and be positioned at the below of transmission line.The overhead ground wire line of fall device that the utility model provides can be avoided being subject to landform and geology restriction during the line of fall.
Description
Technical field
The utility model relates to line of fall technical field, particularly relates to a kind of overhead ground wire line of fall device.
Background technology
The field that high-tension transmission line spanning is wide, is easily struck by lightning at thunderstorm season and causes power transmission to interrupt.Therefore, attack for protection overhead transmission line exempts from lightning, improve the fail safe that circuit runs, the main overhead ground wire that adopts is protected it at present.As depicted in figs. 1 and 2, Fig. 1 is the structural representation of shaft tower added vacant lot line and transmission line in prior art, Fig. 2 is the three-dimensional structure schematic diagram of shaft tower added vacant lot line and transmission line in prior art, prior art is provided with and hangs angle steel 100 above cross arm of tower 200, and one end of overhead ground wire 101 is arranged on and hangs on angle steel 100.Have insulator string 300 at the underhung of cross arm of tower 200, one end of protected transmission line 102 is then arranged on the below of insulator string 300.Visible; overhead ground wire 101 is erected at above protected transmission line 102, and when there is thundercloud to ground discharge above transmission line 102, first lightning passage easily hits overhead ground wire 101; lightning current is made to enter the earth, to protect the normal power transmission of transmission line 102.
But overhead ground wire 101 meets with the external condition impacts such as thunderbolt due to original manufacturing defect or in running, often disconnected stock or degree of impairment can occur.At present more employing line of fall method is keeped in repair to overhead ground wire 101, it is first separated from suspension angle steel one end of overhead ground wire, then earth anchor is set on the position apart from tower certain distance, control to arrange bracing wire, by there is the overhead ground wire placement of disconnected stock or damage in place, then repairing work is carried out to it.Need in cross line direction with along line direction earth anchor during this built on stilts line of fall method operation, then controlling the position apart from tower certain distance being arranged bracing wire, being tangled by structures such as cross arm of tower 200 or insulator strings 300 when preventing overhead ground wire 101 from falling.But earth anchor needs to dig pit fixing, thus should be selected in soil property solid, by the place of river, rain drop erosion, also should not to exhaust and may avoid traffic main artery.Therefore, when having power circuit or condition with a varied topography (being not suitable for arranging earth anchor and bracing wire) when running into that high mountain is above the average age for marriage, on cross line direction, the method just can not adopt.In addition, the method difficulty of construction more greatly, costly.
Therefore, how providing a kind of overhead ground wire line of fall device, to avoid being subject to during the line of fall landform and geology restriction, is current those skilled in the art technical problems urgently to be resolved hurrily.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of overhead ground wire line of fall device, to avoid being subject to landform and geology restriction during the line of fall.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of overhead ground wire line of fall device, comprise the first fixed pulley 1, draw-gear, second fixed pulley, first support, second support, 3rd fixed pulley and puller strap, wherein, described first fixed pulley is fixed on the top hanging angle steel, described draw-gear is fixedly connected with one end of overhead ground wire after walking around described first fixed pulley from bottom to top, described first support is fixed on the side of described suspension angle steel, described second fixed pulley is fixing on the bracket, described second Bracket setting is on transmission line, described 3rd fixed pulley is fixed on described second support, one end of described puller strap to be fixed on described suspension angle steel and to be positioned at the below of described overhead ground wire, described puller strap along described transmission line arranged outside and around on described second fixed pulley and described 3rd fixed pulley, and its other end fixes the bottom of shaft tower, and be positioned at the below of described transmission line.
Preferably, above-mentioned second support is adjustable support, and described second support is provided with adjusting nut.
Preferably, above-mentioned overhead ground wire is optical cable ground wire.
Preferably, above-mentioned overhead ground wire is provided with pulley, described pulley and described puller strap with the use of.
Preferably, above-mentioned draw-gear is rigging.
Preferably, above-mentioned draw-gear comprises towards sky coaster and pull rope.
Preferably, above-mentioned transmission line is bundle conductor.
The overhead ground wire line of fall device that the utility model provides, comprise the first fixed pulley, draw-gear, second fixed pulley, first support, second support, 3rd fixed pulley and puller strap, wherein, described first fixed pulley is fixed on the top hanging angle steel, described draw-gear is fixedly connected with one end of overhead ground wire after walking around described first fixed pulley from bottom to top, described first support is fixed on the side of described suspension angle steel, described second fixed pulley is fixing on the bracket, described second Bracket setting is on transmission line, described 3rd fixed pulley is fixed on described second support, one end of described puller strap to be fixed on described suspension angle steel and to be positioned at the below of described overhead ground wire, described puller strap along described transmission line arranged outside and around on described second fixed pulley and described 3rd fixed pulley, and its other end fixes the bottom of shaft tower, and be positioned at the below of described transmission line.During use, first one end of overhead ground wire is separated from suspension angle steel, then by loosening draw-gear, overhead ground wire falls under self gravitation, now, puller strap is by cross arm of tower, insulator string and transmission line etc. block outside, overhead ground wire is along puller strap cut-through thing, continue mobile until the injury region of overhead ground wire moves in the preset range of the transmission line of overhead ground wire protection, carry out repairing work, in whole line of fall process, be positioned at below overhead ground wire by installing puller strap, and puller strap is at cross arm of tower, the outside of insulator string and transmission line, eliminate the step that earth anchor is first set in prior art, therefore, also the series of problems brought because arranging earth anchor is just solved, as extreme terrain cannot repair the difficult problem of disconnected strand of overhead grounding wire or damage by the line of fall, difficulty of construction is large, expense is high, avoid during the line of fall, being subject to landform and geology restriction, make the reparation of overhead ground wire convenient, fast, operating expenses is also lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of shaft tower added vacant lot line and transmission line in prior art;
Fig. 2 is the three-dimensional structure schematic diagram of shaft tower added vacant lot line and transmission line in prior art;
The structural representation of the overhead ground wire line of fall device that Fig. 3 provides for the utility model embodiment.
In upper Fig. 1-3:
Hang angle steel 100, overhead ground wire 101, transmission line 102, cross arm of tower 200, insulator string 300, first fixed pulley 1, second fixed pulley 2, the 3rd fixed pulley 3, first support 4, puller strap 5, draw-gear 6, second support 7.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 3, the structural representation of the overhead ground wire line of fall device that Fig. 3 provides for the utility model embodiment.
The overhead ground wire line of fall device that the utility model embodiment provides, comprise the first fixed pulley 1, draw-gear 6, second fixed pulley 2, first support 4, second support 7, 3rd fixed pulley 3 and puller strap 5, wherein, first fixed pulley 1 is fixed on the top hanging angle steel 100, draw-gear 6 is fixedly connected with one end of overhead ground wire 101 after walking around the first fixed pulley 1 from bottom to top, first support 4 is fixed on the side hanging angle steel 100, second fixed pulley 2 is fixed on support 4, second support 7 is arranged on transmission line 102, 3rd fixed pulley 3 is fixed on the second support 7, one end of puller strap 5 is fixed on and hangs on angle steel 100 and be positioned at the below of overhead ground wire 101, puller strap 5 along transmission line 102 arranged outside and around on the second fixed pulley 2 and the 3rd fixed pulley 3, and its other end fixes the bottom of shaft tower, and be positioned at the below of transmission line 102.During use, first one end of overhead ground wire 101 is separated from suspension angle steel 100, then by loosening draw-gear 6, overhead ground wire 101 falls under self gravitation, now, puller strap 5 is by cross arm of tower 200, insulator string 300 and transmission line 102 etc. block outside, overhead ground wire 101 is along puller strap 5 cut-through thing, continue mobile until the injury region of overhead ground wire moves in the preset range of the transmission line 102 that overhead ground wire 101 is protected, carry out repairing work, in whole line of fall process, be positioned at below overhead ground wire 101 by installing puller strap 5, and puller strap 5 is at cross arm of tower 200, the outside of insulator string 300 and transmission line 102, eliminate the step that earth anchor is first set in prior art, therefore, also the series of problems brought because arranging earth anchor is just solved, as extreme terrain cannot be repaired overhead ground wire 101 and to break the difficult problem of stock or damage by the line of fall, difficulty of construction is large, expense is high, avoid during the line of fall, being subject to landform and geology restriction, make the reparation of overhead ground wire 101 convenient, fast, operating expenses is also lower.
Further, after completing repairing, overhead ground wire 102 is pulled device 6 when retracting, and puller strap 5 can guarantee overhead ground wire 102 cut-through thing equally.
In order to optimize such scheme further, the second support 7 is adjustable support, and the second support 7 is provided with adjusting nut, regulates the lateral separation between the 3rd fixed pulley 3 and shaft tower, to adapt to different model wire.Wherein, overhead ground wire 101 can be optical cable ground wire, and transmission line 102 can be bundle conductor, and adjustable support can be suspended in two separated wires in outside, uses more convenient.
In order to optimize such scheme further, overhead ground wire 101 is provided with pulley, pulley and puller strap 5 with the use of.When overhead ground wire 101 drops on puller strap 5, can be dropped on puller strap 5 by pulley, avoid the direct contact slide of overhead ground wire 101 and transmission line 102 to cause damaging.
In order to optimize such scheme further, draw-gear 6 is rigging, and traction effect is better, and concrete, draw-gear 6 comprises towards sky coaster and pull rope, realizes automatically drawing.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. an overhead ground wire line of fall device, is characterized in that, comprises the first fixed pulley, draw-gear, the second fixed pulley, the first support, the second support, the 3rd fixed pulley and puller strap,
Wherein, described first fixed pulley is fixed on the top hanging angle steel, and described draw-gear is fixedly connected with one end of overhead ground wire after walking around described first fixed pulley from bottom to top,
Described first support is fixed on the side of described suspension angle steel, and described second fixed pulley is fixing on the bracket,
Described second Bracket setting is on transmission line, and described 3rd fixed pulley is fixed on described second support,
One end of described puller strap to be fixed on described suspension angle steel and to be positioned at the below of described overhead ground wire, described puller strap along described transmission line arranged outside and around on described second fixed pulley and described 3rd fixed pulley, and its other end fixes the bottom of shaft tower, and be positioned at the below of described transmission line.
2. overhead ground wire line of fall device according to claim 1, is characterized in that, described second support is adjustable support, and described second support is provided with adjusting nut.
3. overhead ground wire line of fall device according to claim 1, is characterized in that, described overhead ground wire is optical cable ground wire.
4. overhead ground wire line of fall device according to claim 1, is characterized in that, described overhead ground wire is provided with pulley, described pulley and described puller strap with the use of.
5. overhead ground wire line of fall device according to claim 1, is characterized in that, described draw-gear is rigging.
6. overhead ground wire line of fall device according to claim 5, it is characterized in that, described draw-gear comprises towards sky coaster and pull rope.
7. overhead ground wire line of fall device according to claim 1, is characterized in that, described transmission line is bundle conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696232.0U CN204190271U (en) | 2014-11-19 | 2014-11-19 | A kind of overhead ground wire line of fall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696232.0U CN204190271U (en) | 2014-11-19 | 2014-11-19 | A kind of overhead ground wire line of fall device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190271U true CN204190271U (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696232.0U Expired - Fee Related CN204190271U (en) | 2014-11-19 | 2014-11-19 | A kind of overhead ground wire line of fall device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932601A (en) * | 2016-07-05 | 2016-09-07 | 国网山东省电力公司德州供电公司 | Method for repairing break strand of overhead ground wire |
-
2014
- 2014-11-19 CN CN201420696232.0U patent/CN204190271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932601A (en) * | 2016-07-05 | 2016-09-07 | 国网山东省电力公司德州供电公司 | Method for repairing break strand of overhead ground wire |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |