CN203800533U - Wire-discarding and pole-retaining device for power transmission and distribution line - Google Patents
Wire-discarding and pole-retaining device for power transmission and distribution line Download PDFInfo
- Publication number
- CN203800533U CN203800533U CN201420126508.1U CN201420126508U CN203800533U CN 203800533 U CN203800533 U CN 203800533U CN 201420126508 U CN201420126508 U CN 201420126508U CN 203800533 U CN203800533 U CN 203800533U
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- wire
- metal shell
- line
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- loose
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- 238000009826 distribution Methods 0.000 title abstract description 12
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- 239000004020 conductor Substances 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
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- 239000012212 insulator Substances 0.000 description 6
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000272165 Charadriidae Species 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model discloses a wire-discarding and pole-retaining device for a power transmission and distribution line, which comprises a metal shell. A first wire mounting channel is arranged on one side of the metal shell. The middle part of the metal shell is provided with a notch. The first wire mounting channel is divided by the notch into a first wire channel and a second wire channel. A first wire can be embedded inside the first wire channel and a second wire can be embedded inside the second wire channel. The wires are mechanically clamped by the first wire channel and the second wire channel correspondingly. The first wire and the second wire are not fixedly connected together and are electrically connected through the metal shell. During normal operation, the wires are prevented from slipping relative to the wire-discarding and pole-retaining device for the power transmission and distribution line, so that the mechanical performance and the electrical performance of the original line are not influenced at all. When the magnitude of an external force applied on the power transmission and distribution line exceeds a preset value, the first wire and the second wire are fully released. In this way, electric poles are free from bearing the active forces of the wires, so that the external force is no longer applied onto the electric poles.
Description
Technical field
The utility model relates to a kind of electric line and abandons line guarantor lever apparatus.
Background technology
Along with the high speed development of national economy and improving constantly of living standards of the people, power demands also constantly increases, and power transmission and distribution overhead transmission line is also increasing rapidly, thereby high to the reliability requirement also Di Lai Di of power supply.Atmospheric environment is changeable now, ice damage, Heavy Rain of Typhoon are customary, brought great hidden danger so also to the safe power supply of power transmission and distribution overhead transmission line, excessive or the billboard of the wind-force that causes built on stilts electric line to bear because of wreaking havoc of Heavy Rain of Typhoon blows off to wire road, or along the trees of circuit periphery fracture be pressed onto on wire and winter ice damage cause the electric line icing factors such as seriously, cause wire tension significantly to increase so that surpass the limit breaking force of making somebody a mere figurehead transmission and distribution line line pole tower, and causing guide rod serious accident.
The harm of pole collapse accident is mainly reflected in: life safety and property around caused to serious harm, also the difficulty repairing of power supply department being restored electricity significantly increases simultaneously, also increased the time that repairing restores electricity, national economy has been caused to serious loss, spring in this year shortly past, arrival along with summer, tropical storm and typhoon are in succession and extremely, following one by one is exactly the serious harm that typhoon brings power transmission and distribution overhead transmission line, particularly in the coastal area of China, the typhoon of the 5-6 month in this year has just directly caused Zhanjiang, there are a lot of pole collapse accidents in many power transmission and distribution overhead transmission lines of Maoming area, local people's life safety and property have been caused to great infringement, brought great difficulty also to the repairing of power supply department, brought inconvenience to the people's life, therefore, how effectively to prevent the pole collapse accident causing because of above-mentioned event, loss is dropped to minimum, social coverage is reduced to minimum, also the time of repairing power supply is dropped to the shortest, these problems are badly in need of solving.Be below in prior art to solution of the above problems:
1. in the design basis of existing overhead transmission line, insulator is carried out to design improvement, from theoretical and in fact be all difficult to accomplish, can be in the function that is subject to External Force Acting fracture or off-line even if first insulator is designed to, one is because the action direction of external force is uncertain, and the difference of construction of line mode, may cause wire reliably not discharge; Its two wire due to distribution line is to be all fixed on insulator top, even wire be subject to External Force Acting can be effectively and insulator depart from and come, but the impact due to cross-arm, wire all the time can frame on cross-arm, wire tension can not effectively be discharged, final or can cause pole collapse accident, this scheme need to have a power failure and constructs simultaneously, implements on a large scale and infeasible.
2. if the mounting means of insulator is changed into suspension mounting design, can address the above problem to a certain extent, but still face above-mentioned wire erection mode and the problem of feeder number simultaneously, and implement this kind of scheme and must change the electric pole erecting structure on road and the insulator on replacing all fronts road completely, quantities is quite huge, and needing road power cut construction completely, is also worthless from economic angle.
Above-mentioned two schemes all can not solve guarantor's bar effectively, thus need now a kind of economy, reliable, implement the simplest scheme and address the above problem.
Utility model content
The purpose of this utility model, is to provide a kind of electric line to abandon line and protects lever apparatus.
The solution that the utility model solves its technical problem is: electric line is abandoned line and protected lever apparatus, it comprises the metal shell of strip, one side of described metal shell is provided with the first wire passage is installed, the middle part of metal shell is provided with a breach, described breach is installed passage by the first wire and is divided into the first lead channels and the second lead channels, in described the first lead channels, can inlay the first wire, in described the second lead channels, can inlay the second wire, between described the first wire and the second wire, be not connected and fixed and electrically connect by metal shell.
Further improvement as technique scheme, the inner hollow of described metal shell, the hollow bulb of metal shell is installed loose-leaf system briquetting, one side of described loose-leaf system briquetting is provided with semicircle cavity, forms the first wire passage is installed between described semicircle cavity and its corresponding metal shell madial wall.
As the further improvement of technique scheme, the opposite side of described metal shell is provided with the second wire passage is installed, and described the second wire is installed by passage and the first wire is installed channel parallel, and described the second wire is installed in passage and was inlaid with current wire.
Further improvement as technique scheme, the inner hollow of described metal shell, the hollow bulb of metal shell is installed loose-leaf system briquetting, the both sides of described loose-leaf system briquetting are provided with semicircle cavity, form the first wire passage and the second wire installation passage are installed between described semicircle cavity and its corresponding metal shell madial wall.
As the further improvement of technique scheme, on described loose-leaf system briquetting, be evenly arranged several by conductor clamping the trip bolt in respective channel.
As the further improvement of technique scheme, the outer surface cover of described metal shell has an insulation crust, and the one or both sides of described insulation crust are provided with slip Warning Mark.
The beneficial effects of the utility model are: the utility model by inlaying the first wire in the first lead channels, in the second lead channels, can inlay the second wire, the first lead channels and the second lead channels realize mechanical clamping to corresponding wire, between the first wire and the second wire, be not connected and fixed and electrically connect by metal shell, during normal operation, electric line is abandoned line and is protected the relative slippage that do not have between lever apparatus and wire, on the mechanical performance of former circuit and electric property (through-current capability) without any impact.When external force (typhoon, trees, billboard, icing etc.) is abandoned the action set point of line guarantor lever apparatus to the active force of distribution line over electric line, the first wire and the second wire can be discharged completely, shed wire to the active force of electric pole (thoroughly discharging wire), guarantee that External Force Acting no longer continues to be applied on electric pole.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art is not paying under the prerequisite of creative work, can also obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is end view of the present utility model;
Fig. 3 is the axonometric drawing that waits of the present utility model.
Embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to understand fully the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model, rather than whole embodiment, based on embodiment of the present utility model; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work, all belong to the scope that the utility model is protected.In addition, all connection/annexations of mentioning in literary composition, not singly refer to that member directly joins, and refer to and can by adding or reducing, connect auxiliary according to concrete performance, form more excellent draw bail.
With reference to Fig. 1～Fig. 3, electric line is abandoned line and is protected lever apparatus, it comprises the metal shell 1 of strip, one side of described metal shell 1 is provided with the first wire passage 5 is installed, the middle part of metal shell 1 is provided with a breach 4, described breach 4 is installed passage 5 by the first wire and is divided into the first lead channels 51 and the second lead channels 52, described the first lead channels 51 is interior can inlay the first wire, described the second lead channels 52 is interior can inlay the second wire, the first lead channels 51 and 52 pairs of corresponding wires of the second lead channels are realized mechanical clamping, between described the first wire and the second wire, be not connected and fixed and electrically connect by metal shell 1.
During normal operation, electric line is abandoned line and is protected the relative slippage that do not have between lever apparatus and wire, on the mechanical performance of former circuit and electric property (through-current capability) without any impact.
When external force (typhoon, trees, billboard, icing etc.) is abandoned the action set point of line guarantor lever apparatus to the active force of distribution line over electric line, the first wire and the second wire can be discharged completely, shed wire to the active force of electric pole (thoroughly discharging wire), guarantee that External Force Acting no longer continues to be applied on electric pole.
Be further used as preferred embodiment, the inner hollow of described metal shell 1, the hollow bulb of metal shell 1 is installed loose-leaf system briquetting 2, one side of described loose-leaf system briquetting 2 is provided with semicircle cavity, forms the first wire passage 5 is installed between described semicircle cavity and its corresponding metal shell 1 madial wall.There is multiple tracks sawtooth the inside of semicircle cavity, and the madial wall of metal shell 1 also has multiple tracks sawtooth, improves the clamping force of loose-leaf system briquetting 2 and 1 pair of wire of metal shell by sawtooth.By compressing loose-leaf system briquetting 2, make wire be clamped in the first wire by mechanical type and install in passage 5.
Be further used as preferred embodiment, the opposite side of described metal shell 1 is provided with the second wire passage 6 is installed, and it is parallel with the first wire installation passage 5 that described the second wire is installed passage 6, and described the second wire is installed in passage 6 and was inlaid with current wire.By current wire was set, guarantee its through-current capability.
Be further used as preferred embodiment, the inner hollow of described metal shell 1, the hollow bulb of metal shell 1 is installed loose-leaf system briquetting 2, the both sides of described loose-leaf system briquetting 2 are provided with semicircle cavity, form the first wire passage 5 and the second wire installation passage 6 are installed between described semicircle cavity and its corresponding metal shell 1 madial wall.There is multiple tracks sawtooth the inside of semicircle cavity, and the madial wall of metal shell 1 also has multiple tracks sawtooth, improves the clamping force of loose-leaf system briquetting 2 and 1 pair of wire of metal shell by sawtooth.By compressing loose-leaf system briquetting 2, make wire be clamped in the first wire by mechanical type and install in passage 5 and the second wire installation passage 6.
Be further used as preferred embodiment, on described loose-leaf system briquetting 2, be evenly arranged several by conductor clamping the trip bolt in respective channel 3.
Be further used as preferred embodiment, the outer surface cover of described metal shell 1 has an insulation crust, and the one or both sides of described insulation crust are provided with slip Warning Mark.
This device adopts " breathing altogether energy storage " theory structure, and metal shell 1 adopts particular aluminum alloy manufacture (Brinell hardness >=95), has solved the grip problem to wire; While is with the through-current capability (20 times of electrical connection contact area >=sectional area of wire) of the electrical contact area assurance device of super large; Loose-leaf system briquetting 2 adopts many groups structure (obtaining by many experimental results analytical calculation), and the adjustability of the setting value of ensuring equipment action reliably, to be applicable to the type selecting in different size wire, different span situation; Trip bolt 3 has adopted stainless steel support, has exempted the get rusty problem of difficult dismounting of securing member when maintenance repair is safeguarded; This device is also designed with insulation crust and slip Warning Mark in addition, to be applicable to insulated conductor and wire, has the warning after slippage.
Electric line is abandoned the installation method that line is protected lever apparatus, comprises the following steps,
1) the first wire that the line conductor in work is inserted in to metal shell 1 is installed in passage 5, notices that wherein line conductor is placed on the side that metal shell 1 has breach 4;
2) by tightening trip bolt 3, make after loose-leaf system briquetting 2 clamping lines line conductors, loose-leaf system briquetting 2 contacts with metal shell 1 bottom, checks that whether all loose-leaf system briquettings 2 are installed completely, and check whether all trip bolts compress;
3) with wire nipper, from the breach 4 of metal shell 1, line conductor is cut off to the first wire and the second wire;
4) put insulation crust, by metal shell 1 encapsulation, and on request by the slip Warning Mark locking at insulation crust two ends.
Before step 1), the second wire that overcurrent wire is inserted in to metal shell 1 is installed in passage 6.Be equipped with a mistake current wire with former line conductor same specification model, its length is greater than electric line and abandons line and protect lever apparatus 80mm, if insulated overhead conductor is equipped with one with the LJ aluminium stranded conductor of sectional area.
More than that better embodiment of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (6)
1. electric line is abandoned line and is protected lever apparatus, it is characterized in that: it comprises the metal shell of strip, one side of described metal shell is provided with the first wire passage is installed, the middle part of metal shell is provided with a breach, described breach is installed passage by the first wire and is divided into the first lead channels and the second lead channels, in described the first lead channels, can inlay the first wire, in described the second lead channels, can inlay the second wire, between described the first wire and the second wire, be not connected and fixed and electrically connect by metal shell.
2. electric line according to claim 1 is abandoned line and is protected lever apparatus, it is characterized in that: the inner hollow of described metal shell, the hollow bulb of metal shell is installed loose-leaf system briquetting, one side of described loose-leaf system briquetting is provided with semicircle cavity, forms the first wire passage is installed between described semicircle cavity and its corresponding metal shell madial wall.
3. electric line according to claim 1 is abandoned line and is protected lever apparatus, it is characterized in that: the opposite side of described metal shell is provided with the second wire passage is installed, described the second wire is installed by passage and the first wire is installed channel parallel, and described the second wire is installed in passage and was inlaid with current wire.
4. electric line according to claim 3 is abandoned line and is protected lever apparatus, it is characterized in that: the inner hollow of described metal shell, the hollow bulb of metal shell is installed loose-leaf system briquetting, the both sides of described loose-leaf system briquetting are provided with semicircle cavity, form the first wire passage and the second wire installation passage are installed between described semicircle cavity and its corresponding metal shell madial wall.
5. according to the electric line described in claim 2 or 4, abandon line and protect lever apparatus, it is characterized in that: on described loose-leaf system briquetting, be evenly arranged several by conductor clamping the trip bolt in respective channel.
6. according to the electric line described in claim 1 or 2 or 3 or 4, abandon line and protect lever apparatus, it is characterized in that: the outer surface cover of described metal shell has an insulation crust, and the one or both sides of described insulation crust are provided with slip Warning Mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126508.1U CN203800533U (en) | 2014-03-19 | 2014-03-19 | Wire-discarding and pole-retaining device for power transmission and distribution line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126508.1U CN203800533U (en) | 2014-03-19 | 2014-03-19 | Wire-discarding and pole-retaining device for power transmission and distribution line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800533U true CN203800533U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126508.1U Expired - Lifetime CN203800533U (en) | 2014-03-19 | 2014-03-19 | Wire-discarding and pole-retaining device for power transmission and distribution line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904602A (en) * | 2014-03-19 | 2014-07-02 | 广州开能电气实业有限公司 | Wire abandoning and pole protecting device for transmission and distribution line and installation method for wire abandoning and pole protecting device |
-
2014
- 2014-03-19 CN CN201420126508.1U patent/CN203800533U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904602A (en) * | 2014-03-19 | 2014-07-02 | 广州开能电气实业有限公司 | Wire abandoning and pole protecting device for transmission and distribution line and installation method for wire abandoning and pole protecting device |
| CN103904602B (en) * | 2014-03-19 | 2016-08-17 | 广州开能电气实业有限公司 | Electric line is abandoned line and is protected lever apparatus and abandon the installation method of line guarantor's lever apparatus |
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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 |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |