CN207442397U - A kind of pulling force release device of overhead transmission line wind-deviation drag-line - Google Patents
A kind of pulling force release device of overhead transmission line wind-deviation drag-line Download PDFInfo
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- CN207442397U CN207442397U CN201721639769.3U CN201721639769U CN207442397U CN 207442397 U CN207442397 U CN 207442397U CN 201721639769 U CN201721639769 U CN 201721639769U CN 207442397 U CN207442397 U CN 207442397U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 2
- 238000007665 sagging Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a kind of pulling force release device of overhead transmission line wind-deviation drag-line, including the clamping plate being connected with top zipper and the pulling plate being connected with lower part zipper, clamping plate is y-type structure, clamping plate includes U-shaped end and a word end, one word end of clamping plate is connected with top zipper, the first circular hole is set on the U-shaped end of clamping plate, pulling plate one end is connected with lower part zipper, the middle part of pulling plate sets the second circular hole, the other end of pulling plate sets slotted hole, fixing bolt is set in the second circular hole, slotted hole is corresponding with first circular hole, insertion bolt of long stem in slotted hole and the first circular hole, the both ends of fixing bolt and bolt of long stem are bound by the first stress wire and connected.For the utility model under high wind conditions, power transmission line wind biases rope when reaching design limit pulling force, and pulling force release is carried out by the present apparatus, avoids auxiliary material deformation or Cable failure.The utility model is rational in infrastructure, easy to assembly, avoids steel tower strength reduction and Cable failure, sagging caused earth fault caused by being deformed due to auxiliary material.
Description
Technical field
The utility model is related to transmission line of electricity technical fields, and in particular to a kind of drawing of overhead transmission line wind-deviation drag-line
Power release device.
Background technology
The conducting wire of overhead transmission line is when being subject to beam wind to scrape, it may occur that deviates close to the tower body of steel tower, makes conducting wire
To grounding body（Tower body）Distance reduce, it is sufficiently large in wind-force, since the offset of conducting wire makes conducting wire to grounding body（Tower body）Away from
During from less than one times of safe distance, i.e., it can cause earth fault；In order to avoid the generation of such earth fault, can be used in steel tower
Tower head position, between conducting wire and tower body installation insulation drag-line safeguard procedures, to stop that conducting wire is close to tower body direction；It is this
The both ends of cable arrangement on tower body are fixed in the auxiliary material of tower body, when conducting wire hits drag-line, for installing drag-line
Auxiliary material stress, but when impact force is sufficiently large, cause the accident of auxiliary material stress deformation, Cable failure, there are it is certain not
Foot.
Utility model content
In view of this, the utility model provides a kind of pulling force release device of overhead transmission line wind-deviation drag-line, installation
Between upper and lower drag-line, and utilize stress wire strap and pulling plate, when drag-line is subject to smaller impact force, the length of device
Degree does not change, and inhibitory action is played to the offset of conducting wire, when drag-line is subject to larger impact force（The power will cause auxiliary material
Deformation or Cable failure）, stress wire disconnection, pulling plate is in default guide rail（Slotted hole）In slide, the length of device increases, whole
The length of root drag-line increases, and alleviates impact force of the conducting wire to drag-line, avoids auxiliary material stress deformation and the hair of Cable failure accident
It is raw.
In order to solve the above technical problems, the utility model provides a kind of pulling force release of overhead transmission line wind-deviation drag-line
Device, including the clamping plate being connected with top zipper and the pulling plate being connected with lower part zipper, the clamping plate is y-type structure, described
Clamping plate includes U-shaped end and a word end, and a word end of the clamping plate is connected with the top zipper, is set on the U-shaped end of the clamping plate
The first circular hole is put, described pulling plate one end is connected with the lower part zipper, and the middle part of the pulling plate sets the second circular hole, the pulling plate
The other end slotted hole is set, fixing bolt is set in second circular hole, and the slotted hole is corresponding with first circular hole, institute
It states and bolt of long stem is inserted into slotted hole and the first circular hole, the both ends of the fixing bolt and bolt of long stem pass through the first stress steel
Silk binding connection, when clamping plate and pulling plate are subject to outside pulling force, the first stress wire is tightened, when pulling force is more than the first stress steel
During the ultimate tension of silk, the first stress wire disconnects, and clamping plate is slided using bolt of long stem along the slotted hole on pulling plate, realizes pulling force
Release.
Further, length is less than the long axis length of the slotted hole when first stress wire is subject to ultimate tension.
Further, using steelwork, the both ends of the fixing bolt and bolt of long stem pass through spiral shell for the pulling plate and clamping plate
Cap and gasket are fixed.
Further, the both ends of the fixing bolt and bolt of long stem set mounting hole, and bolt is inserted into the mounting hole.
Further, the both ends of the bolt of long stem set the first extension rod, and the both ends of the fixing bolt set second
Extension rod, first extension rod and the second extension rod by the second stress wire bind connect, second stress wire by
Length when length during to ultimate tension is subject to ultimate tension more than first stress wire, second stress wire are subject to
Length during ultimate tension is less than the long axis length of the slotted hole.
Further, the middle part of the bolt of long stem sets rubber sleeve, and the race diameter of the rubber sleeve is equal to the length
The minor axis length of circular hole.
The operation principle of the utility model is that fixing bolt is set in the second circular hole on pulling plate, the slotted hole on pulling plate with
Insertion bolt of long stem in the first circular hole on the U-shaped end of clamping plate, and the both ends of fixing bolt and bolt of long stem pass through the first stress
Steel wire lashing connects, and is mounted on using bolt of long stem closest to the position of fixing bolt as the initial state of the present apparatus, passes through first
The effect of stress wire causes no longer free to slide between clamping plate and pulling plate.
When the present apparatus is because of strong wind under tension, pulling force can be transferred to the first stress wire, when clamping plate and pulling plate are subject to
During outside pulling force, the first stress wire is tightened, and when pulling force is more than the ultimate tension of steel wire, the first stress wire disconnects, folder
Plate is slided using bolt of long stem along the slotted hole on pulling plate, realizes pulling force release.First stress wire disconnects, after pulling force release,
It is completely not de- there are still connection between pulling plate and clamping plate due to being limited by slotted hole and connecting cleat, the bolt of long stem of pulling plate
From the extended length of whole device is the long axis length of slotted hole.
Preferably, the utility model is provided with extension rod at the both ends of bolt of long stem and fixing bolt and passes through the second stress
Steel wire lashing, after the first stress wire breaks, the second stress wire plays cushioning effect, it is possible to reduce certain dynamics, from
And impact force of the bolt of long stem to slotted hole one end is reduced, Chang'an bolt deformation or clamping plate, pulling plate deformation are avoided, causes subsequently to examine
Difficulty is excessive when repairing dismounting.The rubber sleeve set in the middle part of stock equally plays the effect for slowing down impact force, ensures the knot of the present apparatus
Structure integrity, convenient for secondary use.
The beneficial effects of the utility model are:The pulling force release device of the utility model, under high wind conditions, transmission line of electricity
Wind-deviation drag-line carries out pulling force release when reaching design limit pulling force, by the present apparatus, avoids auxiliary material deformation or Cable failure.
The attachment device of the utility model is rational in infrastructure, easy to assembly, power transmission is clear, and it is strong to avoid the steel tower caused by auxiliary material deforms
Degree reduces and Cable failure, sagging caused earth fault.
Description of the drawings
Fig. 1 is the structure diagram of present apparatus initial position in the utility model embodiment one；
Fig. 2 is the structure diagram after the release of present apparatus pulling force in the utility model embodiment one；
Fig. 3 is the structure diagram of present apparatus initial position in the utility model embodiment two；
Fig. 4 is that the first stress wire is broken and the second stress steel in the release of present apparatus pulling force in the utility model embodiment two
The unbroken structure diagram of silk；
Fig. 5 is the structure diagram after the release of present apparatus pulling force in the utility model embodiment two.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
The attached drawing 1-5 of type embodiment, is clearly and completely described the technical solution of the utility model embodiment.Obviously, it is described
Embodiment be the utility model part of the embodiment, instead of all the embodiments.Based on described the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained shall fall within the protection scope of the present invention.
Embodiment one, the utility model provide a kind of pulling force release device of overhead transmission line wind-deviation drag-line, bag
Include the clamping plate 10 being connected with top zipper and the pulling plate 1 being connected with lower part zipper, the clamping plate 10 is y-type structure, the folder
Plate 10 includes U-shaped 8 and one word end 11 of end, and a word end 11 of the clamping plate 10 is connected with the top zipper, the U of the clamping plate 10
First circular hole 12 is set on type end 8, and described 1 one end of pulling plate is connected with the lower part zipper, and the middle part of the pulling plate 1 sets second
Circular hole 2, the other end of the pulling plate 1 set slotted hole 9, set fixing bolt 3 in second circular hole 2, the slotted hole 9 with
First circular hole 12 corresponds to, insertion bolt of long stem 6, the fixing bolt 3 and stock in 9 and first circular hole 12 of slotted hole
The both ends of bolt 6 are bound by the first stress wire 5 and connected, and when clamping plate 10 and pulling plate 1 are subject to outside pulling force, first should
Power steel wire 5 is tightened, and when pulling force is more than the ultimate tension of the first stress wire, the first stress wire 5 disconnects, and clamping plate 10 utilizes length
Bar bolt 6 is slided along the slotted hole 9 on pulling plate 1, realizes pulling force release.
Length is less than the long axis length of the slotted hole 9 when first stress wire 5 is subject to ultimate tension.
The pulling plate 1 and clamping plate 10 using steelwork, the both ends of the fixing bolt 3 and bolt of long stem 6 by nut and
Gasket is fixed.
The both ends of the fixing bolt 3 and bolt of long stem 6 set mounting hole, and bolt 4 is inserted into the mounting hole.
The operation principle of the utility model is that fixing bolt is set in the second circular hole on pulling plate, the slotted hole on pulling plate with
Insertion bolt of long stem in the first circular hole on the U-shaped end of clamping plate, and the both ends of fixing bolt and bolt of long stem pass through the first stress
Steel wire lashing connects, and is mounted on using bolt of long stem closest to the position of fixing bolt as the initial state of the present apparatus, passes through first
The effect of stress wire causes no longer free to slide between clamping plate and pulling plate.
When the present apparatus is because of strong wind under tension, pulling force can be transferred to the first stress wire, when clamping plate and pulling plate are subject to
During outside pulling force, the first stress wire is tightened, and when pulling force is more than the ultimate tension of steel wire, the first stress wire disconnects, folder
Plate is slided using bolt of long stem along the slotted hole on pulling plate, realizes pulling force release.First stress wire disconnects, after pulling force release,
It is completely not de- there are still connection between pulling plate and clamping plate due to being limited by slotted hole and connecting cleat, the bolt of long stem of pulling plate
From the extended length of whole device is the long axis length of slotted hole.
Embodiment two
The difference between this embodiment and the first embodiment lies in：
The both ends of the bolt of long stem 6 set the first extension rod 15, and the both ends of the fixing bolt 3 set the second extension rod
13,15 and second extension rod 13 of the first extension rod is bound by the second stress wire 14 and connected, second stress wire
14 length when being subject to length during ultimate tension to be subject to ultimate tension more than first stress wire 5, the second stress steel
Length when silk 15 is subject to ultimate tension is less than the long axis length of the slotted hole 9.
The middle part of the bolt of long stem 6 sets rubber sleeve, and the race diameter of the rubber sleeve is equal to the short of the slotted hole 9
Shaft length.
The utility model is provided with extension rod at the both ends of bolt of long stem and fixing bolt and passes through the second stress wire and ties up
It pricks, after the first stress wire breaks, the second stress wire plays cushioning effect, it is possible to reduce certain dynamics, so as to reduce
Bolt of long stem avoids Chang'an bolt deformation or clamping plate, pulling plate deformation, subsequently maintenance is caused to be removed to the impact force of slotted hole one end
When difficulty it is excessive.The rubber sleeve set in the middle part of stock equally plays the effect for slowing down impact force, ensures that the structure of the present apparatus is intact
Property, convenient for secondary use.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (6)
1. a kind of pulling force release device of overhead transmission line wind-deviation drag-line, it is characterised in that：Including being connected with top zipper
Clamping plate and the pulling plate that is connected with lower part zipper, the clamping plate be y-type structure, the clamping plate includes U-shaped end and a word end, institute
The word end for stating clamping plate is connected with the top zipper, sets the first circular hole on the U-shaped end of the clamping plate, described pulling plate one end with
Lower part zipper connection, the middle part of the pulling plate set the second circular hole, and the other end of the pulling plate sets slotted hole, and described the
Fixing bolt is set in two circular holes, and the slotted hole is corresponding with first circular hole, insertion in the slotted hole and the first circular hole
The both ends of bolt of long stem, the fixing bolt and bolt of long stem are bound by the first stress wire and connected, when clamping plate and pulling plate
When being subject to outside pulling force, the first stress wire is tightened, when pulling force is more than the ultimate tension of the first stress wire, the first stress
Steel wire disconnects, and clamping plate is slided using bolt of long stem along the slotted hole on pulling plate, realizes pulling force release.
2. the pulling force release device of overhead transmission line wind-deviation drag-line as described in claim 1, it is characterised in that：Described
Length is less than the long axis length of the slotted hole when one stress wire is subject to ultimate tension.
3. the pulling force release device of overhead transmission line wind-deviation drag-line as claimed in claim 2, it is characterised in that：The drawing
Using steelwork, the both ends of the fixing bolt and bolt of long stem are fixed by nut and gasket for plate and clamping plate.
4. the pulling force release device of overhead transmission line wind-deviation drag-line as claimed in claim 3, it is characterised in that：It is described solid
The both ends for determining bolt and bolt of long stem set mounting hole, and bolt is inserted into the mounting hole.
5. the pulling force release device of overhead transmission line wind-deviation drag-line as described in claim 1, it is characterised in that：The length
The both ends of bar bolt set the first extension rod, and the both ends of the fixing bolt set the second extension rod, first extension rod and
Second extension rod is bound by the second stress wire and connected, and second stress wire is subject to length during ultimate tension to be more than institute
Length when the first stress wire is subject to ultimate tension is stated, it is described that second stress wire is subject to length during ultimate tension to be less than
The long axis length of slotted hole.
6. the pulling force release device of overhead transmission line wind-deviation drag-line as described in claim 1, it is characterised in that：The length
The middle part of bar bolt sets rubber sleeve, and the race diameter of the rubber sleeve is equal to the minor axis length of the slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639769.3U CN207442397U (en) | 2017-11-30 | 2017-11-30 | A kind of pulling force release device of overhead transmission line wind-deviation drag-line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639769.3U CN207442397U (en) | 2017-11-30 | 2017-11-30 | A kind of pulling force release device of overhead transmission line wind-deviation drag-line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207442397U true CN207442397U (en) | 2018-06-01 |
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ID=62285369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721639769.3U Active CN207442397U (en) | 2017-11-30 | 2017-11-30 | A kind of pulling force release device of overhead transmission line wind-deviation drag-line |
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| Country | Link |
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| CN (1) | CN207442397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769142A (en) * | 2017-11-30 | 2018-03-06 | 国家电网公司 | A kind of power transmission line wind biases the pulling force release device of rope |
-
2017
- 2017-11-30 CN CN201721639769.3U patent/CN207442397U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769142A (en) * | 2017-11-30 | 2018-03-06 | 国家电网公司 | A kind of power transmission line wind biases the pulling force release device of rope |
| CN107769142B (en) * | 2017-11-30 | 2023-09-08 | 国家电网公司 | Tension releasing device for wind deflection prevention inhaul cable of power transmission line |
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