CN207353809U - A kind of power transmission tower - Google Patents
A kind of power transmission tower Download PDFInfo
- Publication number
- CN207353809U CN207353809U CN201721117282.9U CN201721117282U CN207353809U CN 207353809 U CN207353809 U CN 207353809U CN 201721117282 U CN201721117282 U CN 201721117282U CN 207353809 U CN207353809 U CN 207353809U
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- Prior art keywords
- power transmission
- transmission tower
- guide rod
- tower
- overload protection
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Abstract
The utility model embodiment discloses a kind of power transmission tower, is related to field of communication technology, and power transmission tower can be protected in power transmission tower excess load under various working to reduce the probability that tower occurs for power transmission tower.Conducting wire is provided with the power transmission tower; distinguish an erection point on bracing wire to power transmission tower tower body upwards from two diverse locations of conducting wire; there is overload protection arrangement respectively in the bracing wire that at two different positions each is put to erection, overload protection arrangement is broken in the tension variation on conducting wire.The utility model embodiment is suitable for power transmission tower.
Description
Technical field
The utility model embodiment is related to field of communication technology, more particularly to a kind of power transmission tower.
Background technology
Undergo the severe natural bar such as wind, rain, ice during transmission line of electricity (including power transmission tower and conducting wire) long-term work in the wild
The test of part, especially in strong wind, ice-shedding, the operating mode such as wave under, the conducting wire in transmission line of electricity is easy to break, and
Unbalanced tensile force or broken string impact during conductor cord disconnection easily cause down tower.In addition, in the power transmission line of division large pitch more
It is tower-coupled with transmitting electricity in conducting wire in road (i.e. division number is binary fission or more, and span is in hundred meters and the transmission line of electricity of the above)
In the case of, (i.e. air flow is to pressure caused by engineering structure, the size of wind load and square of wind speed for the wind load of conducting wire
It is directly proportional) it is very big, control tower (referring to the steel such as the angle steel for building power transmission tower) unbalance stress of power transmission tower is be easy to cause, and cause conducting wire
Broken string, so as to cause power transmission tower to fall tower, and then cause supply of electric power to be paralysed.In order to recover supply of electric power, then need to transmission of electricity
Tower carries out rush repair.
But the required emergency repair time of tower be far longer than broken string needs emergency repair time, and tower easily cause it is chain
Effect (i.e. the conducting wire that power transmission tower when of falling tower can be coupled on pair other power transmission towers being connected with the power transmission tower causes to impact, and
When power transmission tower after of falling tower, the position of the conducting wire between the power transmission tower and the power transmission tower being attached thereto and stressing conditions become
Change, unbalanced tension force occurs in the conducting wire coupled on other power transmission towers for causing to be connected with the power transmission tower, so as to cause and the transmission of electricity
Tower occurs to fall for other power transmission towers of tower connection), thus when phenomenon of falling tower is serious likely result in large area supply of electric power paralysis, cause
Great economic loss.
Utility model content
The utility model embodiment provides a kind of power transmission tower, can strong wind, ice-shedding, wave etc. it is defeated under bad working environments
Power transmission tower is protected to reduce the probability that tower occurs for power transmission tower during pylon excess load.To reach above-mentioned purpose, the utility model is adopted
With following technical solution：
A kind of power transmission tower, is provided with conducting wire, distinguishes bracing wire upwards to power transmission tower tower from two diverse locations of the conducting wire
One on body erection point, from described two diverse locations each to respectively there is overload to protect in the bracing wire for setting up point
Protection unit.
Compared with prior art, the utility model embodiment makes conducting wire in power transmission tower excess load by overload protection arrangement
Separated with power transmission tower, avoid triggering because of conductor cord disconnection power transmission tower from falling tower, so that reducing power transmission tower occurs to fall the probability of tower.This
Outside, overload protection arrangement can not only separate conducting wire and power transmission tower, and the repeatable usability of the overload protection arrangement is very high.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram for power transmission tower that the utility model embodiment provides；
Fig. 2 is a kind of structure diagram for overload protection arrangement that the utility model embodiment provides.
Description of reference numerals：
1-conducting wire, 2-above bracing wire,
3-lower connector, 4-insulator chain,
5-overload protection arrangement, 6-housing,
7-guide rod, 8-guide rod upper hopper chute,
9-guide rod gliding groove, 10-crank,
11-connecting rod, 12-sliding block,
13-sliding block sliding slot, 14-spring,
15-displacement sensor, 16-connecting rope,
17-angular transducer, 18-shield wire frame,
19-cross-arm.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained, shall fall within the protection scope of the present invention.
The utility model embodiment provides a kind of power transmission tower, as shown in Figure 1, the power transmission tower frame is equipped with conducting wire 1, the conducting wire 1
Two diverse locations distinguish an erection point on bracing wire to power transmission tower tower body upwards, at two different positions each arrives
Set up in the bracing wire of point has overload protection arrangement 5 respectively.Wherein, overload protection arrangement 5 breaks in the tension variation on conducting wire
Split.It should be noted that in Fig. 1, which further includes bracing wire 2 on conducting wire, lower connector 3, insulator chain 4, overload guarantor
Protection unit 5.Wherein, the entirety that the upper bracing wire 2 and lower connector 3 that same overload protection arrangement 5 is connected are formed, can by regarding
Point is set up for one on bracing wire to power transmission tower tower body on a position from conducting wire 1, and in the utility model embodiment, frame
Set up an office the insulator chain 4 that can be considered as shown in Fig. 1.It should be noted that Fig. 1 illustrate only a kind of possible power transmission tower knot
Structure, is not intended as the restriction to the utility model embodiment.
In addition, in Fig. 1, which further includes angular transducer 17, shield wire frame 18, cross-arm 19, wherein, angle sensor
Device 17 is arranged on insulator chain 4.In the utility model embodiment, angular transducer 17 is used to measure bracing wire 2 and transmission of electricity
Angle between tower perpendicular bisector, i.e., the θ shown in Fig. 1；Shield wire frame 18 is connected with 4 bottom of insulator chain, shield wire frame 18 is used to connect
The live wire 1 firmly to drop, the shield wire frame 18 could be provided as that structure can be rocked, to mitigate after live wire 1 drops to transmission of electricity
Impact caused by tower；Cross-arm 19 is connected with the top of insulator chain 4.
Above-mentioned angular transducer 17 for can screening device be arranged on power transmission tower, except can be using angular transducer 17 come complete
Into beyond the detection of θ sizes, angle can also be detected using other modes, such as, by measuring 2 stress feelings of upper bracing wire
The modes such as the change of condition, do not limit herein.
It should be noted that upper bracing wire 2 and lower connector 3 when 1 tension force of conducting wire is not above preset critical usually not
It can be broken, upper bracing wire 2 can also be connected to the side of overload protection arrangement 5, or be connected to inside overload protection arrangement 5
On housing 6.Wherein, preset critical can be considered as the value of the tension force of conducting wire 1 when conducting wire 1 may be broken, can be by tieing up
Repair personnel to be set according to historical experience value, for setting means, do not limit herein.
In addition, in order to enable overload protection arrangement 5 to better adapt to outdoor changeable environmental aspect, under normal circumstances,
Overload protection arrangement 5 can be arranged to device made of rigid metal.
Fig. 2 is a kind of structure diagram for overload protection arrangement 5 that the utility model embodiment provides.As shown in Fig. 2, should
Overload protection arrangement 5 includes housing 6 and guide rod 7.
Wherein, guide rod upper hopper chute 8 and guide rod gliding groove 9 are provided with housing 6.Tension force in 1 both sides of conducting wire is no super
In the case of crossing preset critical, one end of guide rod 7 is located in guide rod upper hopper chute 8, and the other end of guide rod 7 is located at guide rod gliding groove
In 9；7 upper end of guide rod is provided with two card slots, and corresponding position is provided with a fixation on housing 6 with each card slot
End, each fixing end and one end of a crank 10 are hinged, and one end of the other end and a connecting rod 11 of each crank 10 is hinged,
And crank 10 and the hinge joint of connecting rod 11 are located in card slot, the other end of each connecting rod 11 and a sliding block 12 are hinged, sliding block 12
It can be slided in sliding block sliding slot 13.
Bottom in housing 6 is provided with two cavitys, and a spring 14 is set in each cavity, and the one of each spring 14
End is connected with the bottom in housing 6, and the other end of spring 14 is contacted with a sliding block 12, and the bottom of each sliding block sliding slot 13 is located at
In one cavity.
In addition, at least one displacement sensor 15, connecting rope 16, each displacement can also be included in overload protection arrangement 5
Sensor 15 is fixed in the housing 6 in the cavity of the top of sliding block 12, the bottom of each displacement sensor 15 and connection
One end of rope 16 is connected, and the other end of connecting rope 16 is connected with the top of sliding block 12.
It should be noted that the position of displacement sensor 15 in the top of crank 10, lower section or can be arranged in parallel.This
Outside, in order to enable overload protection arrangement 5 to better adapt to outdoor changeable environmental aspect, guide rod 7, crank 10, connecting rod 11 are equal
It can be made of rigid metal.In the utility model embodiment, no matter the tension force of 1 both sides of conducting wire is either with or without more than preset threshold
Value, displacement sensor 15 all can record the displacement for the sliding block 12 being connected with the connecting rope 16 in real time by connecting rope 16, and obtain
After getting the angle value between the upper bracing wire 2 and power transmission tower perpendicular bisector that the wireless launcher on angular transducer 17 sends, lead to
Cross in displacement sensor 15 device with computing capability such as microprocessor set to be handled, so as to obtain conducting wire 1
Tension force.For example the device with computing capability can be by by obtained displacement, angle value and known spring rate
Formula is substituted into be calculated in the microprocessor of itself, wherein, calculation formula is as follows：
F0=2k Δ xsin θ
Wherein, F0For the tension force of the axial force of conducting wire 1, i.e. conducting wire 1；K is the stiffness coefficient of spring 14, straight with spring 14
Footpath, material, line footpath, the number of turns etc. are related；The value of k is positive number；Δ x is the displacement for the sliding block 12 being connected with connecting rope 16；θ is upper
Angle value between bracing wire 2 and power transmission tower perpendicular bisector.
The result of calculation that displacement sensor 15 will can obtain afterwards, it is real by the wireless launcher of displacement sensor 15
When to Online Monitoring Control platform send, after receiving the result of calculation in order to Online Monitoring Control platform, remind maintenance personal into
Rob and repair.
When the tension force on conducting wire 1 changes, conducting wire 1 is made under guide rod 7 by giving lower 3 one downward power of connector
Pressure, causes one end of crank 10 to be rotated around fixing end and promotes sliding block 12 by connecting rod 11, make sliding block 12 along sliding block sliding slot 13
Track move up and down.
When the tension force of 1 side of conducting wire exceedes preset critical, guide rod 7 is dragged under conducting wire 1, makes the guide after stress of guide rod 7
9 place direction of bar gliding groove is moved, i.e., guide rod 7, which pushes crank 10, causes one end of crank 10 to turn along the direction that guide rod 7 moves down
Dynamic, after certain amplitude is turned to, one end of crank 10 departs from from the card slot on guide rod 7 and to the margin location of close housing 6
Offset is put, so that guide rod 7 continues to fall, the slideway provided along guide rod upper hopper chute 8 and guide rod gliding groove 9 skids off housing 6.
The upper bracing wire 2 with the relation that is indirectly connected with is separated with lower connector 3, cause one end of conducting wire 1 to be dropped, this
When conducting wire 1 the other end be subject to stronger unbalanced tensile force, cause 1 other end of conducting wire has connection with overload protection arrangement 5
The upper bracing wire 2 of relation and lower connector 3 separate, so that conducting wire 1 drops in shield wire frame 18.Hereafter spring 14 recovers deformation,
Displacement sensor 15 detects that the displacement of sliding block 12 is 0, and obtains 1 tension force of conducting wire, i.e., 1 tension force of conducting wire is 0, passes through displacement sensing
The wireless launcher of device 15 is sent to Online Monitoring Control platform, so that maintenance personal is monitored by Online Monitoring Control platform
1 tension force of conducting wire is 0, and rush repair is carried out to power transmission tower.
The above, is only specific embodiment of the present utility model, but the protection domain of the utility model embodiment is simultaneously
Not limited to this, any one skilled in the art, can in the technical scope that the utility model embodiment discloses
Change or replacement are readily occurred in, should all be covered within the protection domain of the utility model embodiment.Therefore, the utility model is real
The protection domain for applying example should be based on the protection scope of the described claims.
Claims (6)
1. a kind of power transmission tower, is provided with conducting wire, it is characterised in that distinguish upwards from two diverse locations of the conducting wire bracing wire to
An erection point on power transmission tower tower body, has respectively from each bracing wire put to the erection of described two diverse locations
There is overload protection arrangement；The bracing wire has upper bracing wire and lower connector in the both sides of the overload protection arrangement respectively, described
Upper bracing wire is connected with the point that sets up, and one of the lower connector and described two diverse locations are connected；
The overload protection arrangement includes housing and guide rod；
Guide rod upper hopper chute and guide rod gliding groove are provided with the housing, one end of the guide rod is located at the guide rod upper hopper chute
In, and the other end of the guide rod is located in the guide rod gliding groove, the guide rod can be along the guide rod upper hopper chute and institute
The slideway for stating guide rod gliding groove composition slides；
The guide rod is provided with two card slots, and the corresponding position of each card slot is provided with a fixing end, each fixed
One end with a crank is held to be hinged, the other end of each crank and one end of a connecting rod are hinged, and the hinge of crank and connecting rod
Contact is located in card slot, and the other end of each connecting rod is hinged with a sliding block, wherein, sliding block slides in sliding block sliding slot；
Bottom in the housing is provided with two cavitys, and a spring is set in each cavity, one end of each spring with
Bottom in the housing is connected, the other end of each spring and a shoe contact, and the bottom of each sliding block sliding slot is located at one
In a cavity；
The top of the overload protection arrangement is the top of the housing, and the bottom of the overload protection arrangement is the guide rod
Bottom.
2. power transmission tower as claimed in claim 1, it is characterised in that the insulator chain for setting up point on the power transmission tower
On.
3. power transmission tower as claimed in claim 1, it is characterised in that the overload protection arrangement includes at least one displacement sensing
Device, connecting rope；
Each displacement sensor is fixed in the housing in the cavity above the sliding block.
4. power transmission tower as claimed in claim 3, it is characterised in that the bottom of each displacement sensor and one end phase of connecting rope
Even, the other end of connecting rope is connected with the top of sliding block.
5. power transmission tower as claimed in claim 2, it is characterised in that the power transmission tower includes angular transducer, and the angle passes
Sensor is arranged on the insulator chain.
6. power transmission tower as claimed in claim 2, it is characterised in that the power transmission tower includes shield wire frame, the shield wire frame and institute
State insulator chain to be connected, and the conducting wire passes through the shield wire frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117282.9U CN207353809U (en) | 2017-09-01 | 2017-09-01 | A kind of power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721117282.9U CN207353809U (en) | 2017-09-01 | 2017-09-01 | A kind of power transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353809U true CN207353809U (en) | 2018-05-11 |
Family
ID=62412383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721117282.9U Active CN207353809U (en) | 2017-09-01 | 2017-09-01 | A kind of power transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207353809U (en) |
-
2017
- 2017-09-01 CN CN201721117282.9U patent/CN207353809U/en active Active
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