CN214379964U - Anti-string-falling device for tension string insulator of 500kV power transmission line - Google Patents
Anti-string-falling device for tension string insulator of 500kV power transmission line Download PDFInfo
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- CN214379964U CN214379964U CN202022922757.XU CN202022922757U CN214379964U CN 214379964 U CN214379964 U CN 214379964U CN 202022922757 U CN202022922757 U CN 202022922757U CN 214379964 U CN214379964 U CN 214379964U
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- connecting plate
- string
- shaped ring
- strain insulator
- ring
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- 239000012212 insulator Substances 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 239000012211 strain insulator Substances 0.000 claims abstract description 40
- 230000002265 prevention Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a 500kV transmission line strain insulator string insulator prevents falling cluster device comprises left connecting plate, right connecting plate, left connecting plate U type ring, right connecting plate U type ring and an extension ring. Left connecting plate, right connecting plate can install safely on the interior cluster triplex board of string in the strain insulator and the outer cluster triplex board of string outside the strain insulator, then through left connecting plate U type ring, right connecting plate U type ring makes left connecting plate and right connecting plate interconnection with the extension ring, makes the string form a secondary connection in the outer string of strain insulator and the strain insulator like this, can not drop, and the security is higher, and do not change original strain insulator interior string, the atress of the outer string of strain insulator, only when string or the outer string of strain insulator disconnected the series in the strain insulator, the utility model discloses just can the atress, shift and undertake disconnected strain insulator string's tension, make disconnected load can pass through the utility model discloses on shifting to another string of normal operating's strain insulator string temporarily, avoid falling the emergence of line accident.
Description
Technical Field
The utility model relates to an electric power protection gold utensil especially relates to a 500kV transmission line strain insulator string insulator prevents falling cluster device.
Background
500kV transmission line generally adopts 400mm of sectional area2And the four-bundle conductor, the hardware string commonly used by the tension tower is a duplex double-hanging-point tension-resistant hardware string. The duplex double-hanging-point strain hardware string adopts a typical design scheme in the early stage that a string of insulators bears the tension of two sub-wires, and when one string of insulators fails, the two sub-wires connected with the string of insulators directly fall to the ground due to loss of connectionIn addition, the grounding of the line is stopped, so that certain potential safety hazard exists in the use process. Particularly, important cross-over, such as crossing railways, highways and areas with dense personnel activities, are easy to have public safety accidents with great influence.
Disclosure of Invention
The problem to the above-mentioned existence, the utility model aims at providing a 500kV transmission line strain insulator string device of preventing falling, it can realize protectiveness with this kind of outer string insulator that has the potential safety hazard and this two strings of insulators of interior string insulator and link together, when meetting ice disaster or other reasons and cause one of them string fracture to fall the string, can will fall on string side two sub-wire tension shifts the insulator of opposite side normal work, avoid falling the circuit outage trouble that the string fall line caused, fall to minimumly as far as possible with the influence of accident.
The purpose of the utility model is realized like this:
the utility model provides a 500kV transmission line strain insulator-string insulator anti-drop cluster device, the characteristic is: constitute by left connecting plate, right connecting plate, left connecting plate U type ring, right connecting plate U type ring and an extension ring, wherein: the left connecting plate and the right connecting plate which are completely the same in shape are composed of a base and connecting hanging points, the connecting hanging points are vertically fixed in the middle of the rectangular base, a hanging point round hole is formed in the middle of the connecting hanging points, eight base round holes are formed in two long sides of the base, the eight base round holes are symmetrically distributed on two sides of the connecting hanging points on the base, and four base round holes are formed in the long sides of each side; the U-shaped ring of the left connecting plate and the U-shaped ring of the right connecting plate which are completely the same in shape are both composed of a U-shaped ring body, a bolt and a nut, the right end of the U-shaped ring body of the U-shaped ring of the left connecting plate penetrates through the left end of the extension ring and hooks the extension ring, the bolt penetrates through the round hole at the left end of the U-shaped ring body of the U-shaped ring of the left connecting plate and the round hole at the hanging point of the connection of the left connecting plate and then is fixed with the nut together to fix the left connecting plate, the U-shaped ring of the left connecting plate and the extension ring together, the left end of the U-shaped ring body of the U-shaped ring of the right connecting plate penetrates through the right end of the extension ring and hooks the extension ring, the bolt penetrates through the round hole at the right end of the U-shaped ring body of the U-shaped ring of the right connecting plate and the round hole at the hanging point of the right connecting plate and then is fixed with the nut together to fix the right connecting plate, the U-shaped ring of the right connecting plate and the extension ring together, therefore, the left connecting plate U-shaped ring, the extension ring, the right connecting plate U-shaped ring and the right connecting plate form a whole.
The both sides at the minor face A end of base are equipped with an outside open-ended notch respectively to prevent influencing the utility model discloses installation on the bracing piece.
The utility model comprises a left connecting plate, a right connecting plate, a left connecting plate U-shaped ring, a right connecting plate U-shaped ring and an extension ring, wherein the left connecting plate, the left connecting plate U-shaped ring, the extension ring, the right connecting plate U-shaped ring and the right connecting plate form a whole, the left connecting plate can be tightly arranged on an inner string three-way plate of a strain insulator inner string, the right connecting plate can be tightly arranged on an outer string three-way plate of a strain insulator outer string, thus the strain insulator inner string and the strain insulator outer string form a secondary connection, the two can not fall off, the safety is higher, the stress of the inner string three-way plate of the original strain insulator inner string and the outer string three-way plate of the strain insulator outer string is not changed, only when the strain insulator inner string or the strain insulator outer string is disconnected, the utility model can bear the stress and transfer and disconnect the load of the insulator string, make the load on the insulator string of disconnected antithetical couplet can pass through the utility model discloses on shifting to another string normal operating's strain insulator string temporarily, avoid the emergence of the accident of falling the line.
Therefore, the utility model has the following characteristics:
1. the installation is simple, the connection of the inner string of the existing tension insulator and the outer string of the tension insulator is not required to be disconnected, the extension hardware fitting is not added, the sag of the existing wire to the ground is not changed, and the inner string three-way board of the inner string of the tension insulator and the channel steel of the outer string three-way board of the outer string of the tension insulator are additionally provided with the tension insulator inner string and the tension insulator outer string to form a whole;
2. the operation safety coefficient of the strain insulator inner string and the strain insulator outer string of the existing 500kV transmission line can be improved, namely after one string of the strain insulator inner string and the strain insulator outer string is subjected to string dropping after installation, a wire does not drop and does not droop;
3. the utility model can save the capital for the transformation of the 'three-span' project of the power transmission line, namely, when the hidden trouble that the transformation can not be carried out in time due to the capital or the difficult reason of project establishment of an important span point occurs, the transformation can be carried out in advance by using the utility model, so as to prevent the line from falling off in the important or 'three-span' section, improve the safe operation level of the line and simultaneously not influence the safety of the equipment below the line;
4. the device is safe and reliable, and the stress can completely meet the requirement of the maximum load on two strings of insulators;
5. the line fault caused by string falling is reduced, the influence of the accident is reduced to the minimum as possible, meanwhile, the operation and maintenance are convenient, and the normal and stable operation of the power transmission line is ensured.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the left and right connector plates;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the left and right web U-rings;
FIG. 6 is a schematic view of an elongated ring;
fig. 7 is a front view of the connection between the tension insulator inner string and the tension insulator outer string of the present invention;
fig. 8 is a perspective view of the connection between the present invention and the strain insulator inner string and the strain insulator outer string;
fig. 9 is the installation structure diagram of the inner string three-way board of the inner string of the strain insulator and the outer string three-way board of the outer string of the strain insulator of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a 500kV transmission line strain insulator-string insulator anti-drop cluster device, the characteristic is: constitute by left connecting plate 1, right connecting plate 2, left connecting plate U type ring 3, right connecting plate U type ring 4 and an extension ring 5, wherein: the left connecting plate 1 and the right connecting plate 2 which are completely the same in shape are composed of a base 6 and a connecting hanging point 7, the connecting hanging point 7 is vertically fixed in the middle of the rectangular base 6, a hanging point round hole 8 is arranged in the middle of the connecting hanging point 7, eight base round holes are arranged on two long sides 16 of the base 6 and are symmetrically distributed on two sides of the connecting hanging point on the base 6, four base round holes are arranged on the long side 16 of each side, the four base round holes on the front long side 16 are 13, 15, 9 and 11 in sequence from left to right, and the four base round holes on the rear long side 16 are 12, 14, 18 and 10 in sequence from left to right; the left connecting plate U-shaped ring 3 and the right connecting plate U-shaped ring 4 which are completely the same in shape are both composed of a U-shaped ring body 21, a bolt 19 and a nut 20, the right end of the U-shaped ring body 21 of the left connecting plate U-shaped ring 3 penetrates through the left end of the extension ring 5 and hooks the extension ring 5, the bolt 19 penetrates through the round hole at the left end of the U-shaped ring body 21 of the left connecting plate U-shaped ring 3, the left connecting plate 1, the left connecting plate U-shaped ring 3 and the extension ring 5 are fixed together with the nut 20 after the round hole 8 at the connecting hanging point 7 of the left connecting plate 1 and the round hole 8 at the connecting hanging point 7, the left end of the U-shaped ring body 21 of the right connecting plate U-shaped ring 4 penetrates through the right end of the extension ring 5 and hooks the extension ring 5, the bolt 19 penetrates through the round hole at the right end of the U-shaped ring body 21 of the right connecting plate U-shaped ring 4 and the round hole 8 at the connecting hanging point 7 of the right connecting plate 2 and fixes the right connecting plate U-shaped ring 4 together with the nut 20 and the right connecting plate U-shaped ring 4, therefore, the left connecting plate 1, the left connecting plate U-shaped ring 3, the extension ring 5, the right connecting plate U-shaped ring 4 and the right connecting plate 2 form a whole.
The two sides of the short side A end of the base 6 are respectively provided with a notch 17 with an outward opening to prevent the influence on the installation of the utility model on the supporting rod.
The utility model discloses a Q345 steel is as the preparation material of main part to carry out hot-galvanize and handle, the average thickness in zinc layer is greater than 86 mu m.
The working principle is as follows:
use right connecting plate 2 to install the embodiment at the interior cluster 23 of strain insulator as an example, be equipped with eight base round holes on two long limits 16 of the base 6 of right connecting plate 2, four base round holes of the minor face A end of base 6: 18. 9, 10, 11 respectively with four round holes of the channel-section steel 25 wire side 37 of the interior cluster triplex plate 24 of the interior cluster triplex board of the interior cluster 23 of strain insulator through four lockbolts: 33. 32, 31, 30 are correspondingly connected, and four base round holes at the short side B end of the base 6: 12. 13, 14, 15 through four lockbolts respectively with the interior string of strain insulator three link plate 24 the channel-section steel 25 insulator side 28 four round holes of 28: 35. 36, 29 and 34 are correspondingly connected, so that the base 6 on the right connecting plate 2 is tightly connected with the inner string three-link plate 24 of the tension insulator inner string 23 into a whole; the left connecting plate 1 is arranged on a channel steel 27 of an outer string three-way plate 26 of the tension insulator outer string 22 in the same way, so that a base 6 of the left connecting plate 1 and the outer string three-way plate 26 of the tension insulator outer string 22 are connected into a whole, then the left connecting plate U-shaped ring 3 and the right connecting plate U-shaped ring 4 are respectively arranged on the left connecting plate 1 and the right connecting plate 2, and the left connecting plate 1 and the right connecting plate 2 are reliably connected together through the extension ring 5. Like this strain insulator inner string 23, strain insulator outer string 22 structurally have just linked into a whole, just establish reliable and stable connection between them, when meetting ice disaster or other reasons and cause strain insulator inner string 23 or strain insulator outer string 22 one of them antithetical couplet of antithetical couplet, accessible the utility model discloses to take place to connect the load on the strain insulator string of antithetical couplet and shift to the strain insulator string of opposite side normal work on, reduce because of the line fault that the cluster line that falls caused, fall to minimumly as far as with the influence of accident, convenient transportation simultaneously examines and maintains, guarantees transmission line's normal steady operation.
Claims (2)
1. The utility model provides a 500kV transmission line strain insulator-string insulator anti-drop cluster device which characterized in that: constitute by left connecting plate, right connecting plate, left connecting plate U type ring, right connecting plate U type ring and an extension ring, wherein: the left connecting plate and the right connecting plate which are completely the same in shape are composed of a base and connecting hanging points, the connecting hanging points are vertically fixed in the middle of the rectangular base, a hanging point round hole is formed in the middle of the connecting hanging points, eight base round holes are formed in two long sides of the base, the eight base round holes are symmetrically distributed on two sides of the connecting hanging points on the base, and four base round holes are formed in the long sides of each side; the U-shaped ring of the left connecting plate and the U-shaped ring of the right connecting plate which are completely the same in shape are both composed of a U-shaped ring body, a bolt and a nut, the right end of the U-shaped ring body of the U-shaped ring of the left connecting plate penetrates through the left end of the extension ring and hooks the extension ring, the bolt penetrates through the round hole at the left end of the U-shaped ring body of the U-shaped ring of the left connecting plate and the round hole at the hanging point of the connection of the left connecting plate and then is fixed with the nut together to fix the left connecting plate, the U-shaped ring of the left connecting plate and the extension ring together, the left end of the U-shaped ring body of the U-shaped ring of the right connecting plate penetrates through the right end of the extension ring and hooks the extension ring, the bolt penetrates through the round hole at the right end of the U-shaped ring body of the U-shaped ring of the right connecting plate and the round hole at the hanging point of the right connecting plate and then is fixed with the nut together to fix the right connecting plate, the U-shaped ring of the right connecting plate and the extension ring together, therefore, the left connecting plate U-shaped ring, the extension ring, the right connecting plate U-shaped ring and the right connecting plate form a whole.
2. The 500kV transmission line strain insulator string drop prevention device of claim 1, characterized in that: two sides of the short side A end of the base are respectively provided with a notch which is opened outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022922757.XU CN214379964U (en) | 2020-12-09 | 2020-12-09 | Anti-string-falling device for tension string insulator of 500kV power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022922757.XU CN214379964U (en) | 2020-12-09 | 2020-12-09 | Anti-string-falling device for tension string insulator of 500kV power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214379964U true CN214379964U (en) | 2021-10-08 |
Family
ID=77982972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022922757.XU Expired - Fee Related CN214379964U (en) | 2020-12-09 | 2020-12-09 | Anti-string-falling device for tension string insulator of 500kV power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214379964U (en) |
-
2020
- 2020-12-09 CN CN202022922757.XU patent/CN214379964U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |