CN209228165U - A kind of unicuspid cross-arm and power transmission tower - Google Patents
A kind of unicuspid cross-arm and power transmission tower Download PDFInfo
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- CN209228165U CN209228165U CN201821735672.7U CN201821735672U CN209228165U CN 209228165 U CN209228165 U CN 209228165U CN 201821735672 U CN201821735672 U CN 201821735672U CN 209228165 U CN209228165 U CN 209228165U
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Abstract
The utility model discloses a kind of unicuspid cross-arm, for power transmission tower, the power transmission tower includes tower head, the section of the tower head along the horizontal plane is rectangular cross-sectional, above-mentioned unicuspid cross-arm has two groups of cross arm insulators, it is arranged to V-shape along the horizontal plane, and the one end of two groups of cross arm insulators being located at V-shape opening is separately positioned on the adjacent both sides of above-mentioned rectangular cross-sectional, and the other end positioned at V-shape apex of two groups of above-mentioned cross arm insulators is joined together to form mounting point for mounting conducting wire.A kind of power transmission tower is also disclosed in the utility model.
Description
Technical field
The utility model relates to insulator arrangement field of transmitting electricity, specifically a kind of unicuspid cross-arm and power transmission tower.
Background technique
Power transmission tower is supporting structure important in transmission line of electricity, and structure and material directly affect the construction of transmission line of electricity
Speed, reliability and installation, maintenance, maintenance etc..Cross-arm is set for mounting conducting wire, cross-arm is generally symmetrical on power transmission tower
The two sides of power transmission tower are arranged in ground, conducting wire are mounted on the free end of cross-arm, the specific structure and set-up mode of cross-arm are greatly
Affect width of corridor, tower head size, tower height and corresponding removal, installation, freight etc..Especially certain special
In tower such as transposition tower, anchor support, without mounting conducting wire in the two sides of power transmission tower, using the cross for being symmetricly set on power transmission tower two sides
Load more wastes, and not only structure is complicated, also substantially increases cost.
Utility model content
In view of the deficiencies of the prior art, one of the purpose of this utility model is to provide a kind of unicuspid cross-arm, the unicuspid cross-arm
Simple for structure, wire jumper gap is well-to-do, and O&M is convenient, effectively reduces width of corridor, reduces cost.
To realize that above-mentioned purpose of utility model, technological means used by the utility model are as follows: a kind of unicuspid cross-arm is used
In power transmission tower, which includes tower head, and the section of the tower head along the horizontal plane is rectangular cross-sectional, and above-mentioned unicuspid cross-arm has two
Group cross arm insulator is arranged to V-shape, one end difference of two groups of cross arm insulators being located at V-shape opening along the horizontal plane
It is arranged on the adjacent both sides of above-mentioned rectangular cross-sectional, the other end positioned at V-shape apex of two groups of above-mentioned cross arm insulators
Mounting point is joined together to form for mounting conducting wire.
Above-mentioned unicuspid cross-arm, two groups of cross arm insulators by that will be set as V-shape are located at one end difference of opening
It is arranged on the adjacent both sides of tower head, can be directly connected to tower head, tower head can also be indirectly connected to by other structures, made
The adjacent both sides that unicuspid cross-arm is able to bridging tower head are obtained, it is horizontal compared to traditional two groups in this way in the identical situation of cross-arm length
One end that load insulator is located at opening width of corridor occupied when being connected to tower head same side wants small, reduces costs；
And a mounting point is only set on tower head, waste is avoided while satisfying the use demand, saves cost.
Preferably, above-mentioned cross arm insulator is composite cross-arm insulator.Composite cross-arm insulator has high-strength light, corrosion resistant
The advantages that erosion, easy processing, designability be strong, good insulation preformance, can be effectively reduced project cost, and production energy consumption is low, ring
Border is more friendly.
Preferably, the one end of any group of above-mentioned cross arm insulator being located at V-shape opening is connected directly to above-mentioned tower head
Rectangular cross-sectional any side midpoint on.Cross arm insulator is connected directly between on tower head in this way, and structure is simple, convenient for dress
Match, convenient for positioning.
Preferably, outwardly extending auxiliary arm is set on above-mentioned tower head, and auxiliary arm one end is fixed on above-mentioned tower head, and auxiliary arm is another
End is free end, and the one end of any group of above-mentioned cross arm insulator being located at V-shape opening is connected on above-mentioned free end.Setting
Auxiliary arm can make cross arm insulator in the case where meeting the air gap requirement, and end can be more nearly tower head, thus
Line corridor width is reduced, the occupied area of power transmission tower is reduced, reduces land used cost.
Preferably, above-mentioned auxiliary arm includes the first auxiliary arm and the second auxiliary arm, and the of the first end of the first auxiliary arm and the second auxiliary arm
One end is connected on the two adjacent vertex of above-mentioned tower head, and the second end of the first auxiliary arm is connected with the second end of the second auxiliary arm
Above-mentioned free end is formed together.Corresponding connection side on first auxiliary arm and the second auxiliary arm and tower head can form stable three
Angle support construction, so that overall structure is relatively reliable.
Preferably, above-mentioned free end is arranged on the vertical middle face of above-mentioned tower head.The symmetrical configuration of arm auxiliary in this way, convenient for peace
Dress.
Preferably, every group of above-mentioned cross arm insulator is that two hollow insulators are connected to each other by flange.It is hollow exhausted
Edge is light-weight, high mechanical strength, can satisfy the mechanical requirements of shaft tower, and at low cost, and two hollow insulators are connected to each other
The length of cross-arm can be increased, the difficulty of the longer hollow insulator processing and manufacturing of length is high, is divided into two hollow insulators point
The difficulty of production Zhi Zao not greatly reduced.
Preferably, above-mentioned unicuspid cross-arm further includes an auxiliary cross arm insulator, and auxiliary cross arm insulator is at its both ends point
It is not connected to the flange of two groups of above-mentioned cross arm insulators, so that two groups of above-mentioned cross arm insulators and auxiliary cross arm insulator edge
Horizontal plane direction collectively forms A font.The setting of cross arm insulator is assisted so that the three-legged structure of unicuspid cross-arm is more firm, energy
Enough meet the requirement of higher voltage power transmission line.
Preferably, above-mentioned unicuspid cross-arm further includes an oblique pull insulator, and the oblique pull insulator one end is exhausted in above-mentioned cross-arm
The top of edge is connected to above-mentioned tower head, the oblique pull insulator other end be connected to above-mentioned cross arm insulator be located at V-shape top
On the other end at point.Setting oblique pull insulator can share cross arm insulator in the horizontal plane perpendicular to above-mentioned cross arm insulator
The load that direction is subject to improves the reliable of unicuspid cross-arm work to reduce the moment of flexure that above-mentioned cross arm insulator root is subject to
Property, reduce accident.
In view of the deficiencies of the prior art, the two of the purpose of this utility model are to provide a kind of power transmission tower, the tower of the power transmission tower
Header structure is succinct, and size is small, and width of corridor is small, at low cost.
To realize that above-mentioned purpose of utility model, technological means used by the utility model are as follows: a kind of power transmission tower, this is defeated
Pylon includes tower head, and above-mentioned unicuspid cross-arm is provided on the tower head.
Detailed description of the invention
Fig. 1 is the schematic diagram of the power transmission tower 1000 of the utility model embodiment one；
Fig. 2 is the three-dimensional partial schematic diagram that unicuspid cross-arm 120 is arranged on the tower head 110 of the utility model embodiment one；
Fig. 3 is that the tower head 110 of the utility model embodiment one is connecting the first cross arm insulator 140 and the insulation of the second cross-arm
Schematic plan in the horizontal cross-section of son 150；
Fig. 4 is the detail schematic diagram of Fig. 3；
Fig. 5 is the three-dimensional partial schematic diagram that unicuspid cross-arm 220 is arranged on the tower head 210 of the utility model embodiment two；
Fig. 6 is the three-dimensional partial schematic diagram that unicuspid cross-arm 320 is arranged on the tower head 310 of the utility model embodiment three.
Specific embodiment
According to requiring, specific embodiment of the present utility model will be disclosed here.It is to be understood, however, that institute here
The embodiment of disclosure is only the typical example of the utility model, can be presented as various forms.Therefore, it discloses here
Detail be not to be considered as limiting, and be merely possible to the basis of claim and as instructing this field
Technical staff differently applies the representative basis of the utility model in any appropriate mode in practice, including using here
Disclosed various features simultaneously combine the feature that may do not disclose clearly here.
Embodiment one:
As shown in Figure 1, the power transmission tower 1000 of the present embodiment is lattice head tower, there is tower leg 1001, be connected to tower leg
The tower body 1002 of 1001 tops, and it is connected to the tower head 110 of 1002 top of tower body, unicuspid cross-arm is provided on tower head 110
120, for mounting conducting wire 130, the section of tower head 110 along the horizontal plane is square unicuspid cross-arm 120.Tower leg 1001, tower body
1002, tower head 110 is all made of angle steel material.
Certainly, the utility model is not limited to this, and in other examples, power transmission tower 1000 can also be using other gold
Belong to material such as iron etc., or composite material can also be used.The section of tower head 110 along the horizontal plane may be rectangle.
As shown in Figure 2 and Figure 3, in the present embodiment, unicuspid cross-arm 120 has the identical cross arm insulator of two groups of structures, for just
In explanation, it is denoted as the first cross arm insulator 140 and the second cross arm insulator 150 respectively, the first cross arm insulator 140 and second is horizontal
Load insulator 150 is arranged to V-shaped along the horizontal plane.Tower head 110 is connecting the first cross arm insulator 140 and the second cross arm insulator
There are the four edges of square, the first cross arm insulator 140 and the second cross arm insulator 150 are set respectively in 150 horizontal cross-section
It sets on adjacent two orthogonal angle steel on tower head 110, is the first angle steel for the first cross arm insulator 140 to be arranged
101, it is the second angle steel 102 for the second cross arm insulator 150 to be arranged.
To Fig. 4 two outwardly extending auxiliary arms 160, two auxiliary arms are set in the present embodiment on tower head 110 referring to fig. 2
160 structure is identical, is arranged along the horizontal plane.One of them auxiliary arm 160 is arranged on the first angle steel 101, another auxiliary arm 160 is set
It sets on the second angle steel 102.Specifically, the first cross arm insulator 140 is located at one end 141 at V-shape opening by auxiliary arm 160
It is connected to the first angle steel 101, the second cross arm insulator 150 is located at one end 151 at V-shape opening and is connected to by auxiliary arm 160
Second angle steel 102.It is illustrated by taking the first cross arm insulator 140 as an example, auxiliary 160 one end of arm is fixed on the first angle steel 101, auxiliary
160 other end of arm is free end 161, and free end 161 is located on the middle line extended line of the first angle steel 101, the first cross arm insulator
140 one end 141 being located at V-shape opening is connected on free end 161.
Auxiliary arm 160 includes the first auxiliary arm 162 and the second auxiliary arm 163, the first end 1621 and the second auxiliary arm of the first auxiliary arm 162
163 first end 1631 is connected on two adjacent vertex of tower head 110.Specifically, in the present embodiment, second is auxiliary
The first end 1631 of arm 163 is connected on the vertex that the first angle steel 101 is connected with the second angle steel 102, and the of the first auxiliary arm 162
One end 1621 is connected on another endpoint of the first angle steel 101.The second end 1622 of first auxiliary arm 162 and the second auxiliary arm 163
Second end 1632 is joined together to form free end 161.First auxiliary arm 162, the second auxiliary arm 163 and the common shape of the first angle steel 101
The first cross arm insulator 140 is supported at stable three-legged structure.
First auxiliary arm 162 is long and thin metal pipe fitting, at the free end 161 at setting one bending in order to exhausted with the first cross-arm
Edge 140 connects, specifically, bending end in second end 1622 setting ring flange 1623 and the first cross arm insulator 140
One end 141 is in mating connection.Second auxiliary arm 163 is angle member, and second end 1632 is connected directly between on the first auxiliary arm 162.First
Between auxiliary arm 162 and the second auxiliary arm 163, between the first auxiliary arm 162 and the first angle steel 101, the second auxiliary arm 163 and the second angle steel
It is connected by connecting board structure between 102, connecting board structure is common connector, generally plate-like connecting member, is arranged thereon
There are several connecting holes for being cooperatively connected with bolt, connecting plate can be directly welded at the first 162, first jiaos of auxiliary arm according to demand
On steel 101, the second angle steel 102, details are not described herein.In the present embodiment, free end 161 is actually horizontal for connecting first
Carry on a shoulder pole the ring flange 1623 of insulator 140.
Certainly, the utility model is not limited to this, and in other examples, auxiliary arm 160 can also be using other along water
In-plane stretches out and can stablize the structure of the first cross arm insulator 140 of support, for example auxiliary arm 160 is that one end is connected to first
Steel pipe or angle member on angle steel 101, the other end are free end 161；Three or more root angle steel can also either be used
Part is formed by connecting.In addition, auxiliary arm 160 can not also be extended along the horizontal plane, but it is arranged above or below oblique horizontal plane,
Free end 161 and the first angle steel 101 in this way be not in same level, and free end 161 is located at the perpendicular of the first angle steel 101 at this time
In straight on face.Or free end 161 can also be not arranged in vertical on face, and it is biased into the side setting of tower head 110.
Similarly, the one end 151 of the second cross arm insulator 150 being located at V-shape opening is also connected to oneself of auxiliary arm 160
By on end 161, specific structure is identical as the above-mentioned connection structure of the first cross arm insulator 140, and details are not described herein.First
Cross arm insulator 140 is located at the other end 142 of V-shape apex and the second cross arm insulator 150 is located at the another of V-shape apex
One end 152 is joined together to form mounting point 131 for mounting conducting wire.Referring to fig. 4, it is insulated by the first cross-arm in this present embodiment
Son 140 and the second cross arm insulator 150 are connected on tower head 110 by auxiliary arm 160, then the second auxiliary arm of two auxiliary arms 160
163 can be made of an angle steel, and the midpoint of the angle steel is connected to the vertex that the first angle steel 101 is connected with the second angle steel 102
On, two endpoints of the angle steel form respectively two second ends 1632 of two the second auxiliary arms 163, this spline structure is more steady
Gu.Certainly, in other examples, the second of two auxiliary arms 160 the auxiliary arm 163 can also be respectively made of an angle steel, then be divided
It is not connected on the vertex that the first angle steel 101 is connected with the second angle steel 102.
In the present embodiment, it is located on the median vertical line extended line on angle steel side due to free end 161, thus the first cross-arm insulate
The one end of son 140 and the second cross arm insulator 150 being located at V-shape opening is arranged on the vertical middle face on angle steel side.
First cross arm insulator 140 and the second cross arm insulator 150 are all made of composite cross-arm insulator.Referring to fig. 4, specifically
Ground, the first cross arm insulator 140 are formed by connecting by composite insulator 1401 and composite insulator 1402.Composite insulator 1401 wraps
Hollow insulation tube 143 is included, the parachute skirt of hollow 143 outer surface of insulation tube is coated on and is connected to hollow insulation tube 143
The flange 144 and flange 145 at both ends.It is indicated for clarity in Fig. 4, simplifies composite hollow insulator 1401, parachute skirt is not
It shows.
For hollow insulation tube 143 usually by resin adhesive liquid and fibre reinforcement through Wrapping formed, general step is fiber reinforcement
Body passes through resin adhesive liquid drill traverse stain, and the fibre reinforcement for being impregnated with resin adhesive liquid is wound on core model, then via solidification demoulding etc.
Step is formed.Wherein, fibre reinforcement is chosen as glass fibre, carbon fiber, polyester fiber, basalt fibre or aramid fiber
Deng concretely yarn, felt or cloth etc., such as glass fiber yarn or aryl fiber cloth.Resin is chosen as epoxy resin, unsaturated tree
One or more of rouge, polyurethane or phenolic resin.Certainly, the utility model is not limited to this, in other examples,
Solid insulating bar can also be used, usually by resin adhesive liquid and fibre reinforcement through pultrusion, general step is fiber increasing
For strong body by impregnating in resin glue liquid bath, the fibre reinforcement for being impregnated with resin adhesive liquid passes through extrusion die under the action of tractive force
Afterwards, then via being formed by curing.
Parachute skirt is by rubber material through vacuum integral injection molding.Specifically, silicon rubber, butyronitrile can be selected in rubber material
The materials such as rubber, fluorubber, fluorine silicone rubber, ethylene propylene diene rubber.Hollow insulation tube 143 is placed in a mold, by rubber original
Material inject mold in it is evacuated after hollow insulation tube 143 outer surface sulfidization molding formed insulating layer, room temperature can be used
Sulfidization molding or high temperature vulcanized molding.Certainly, the first cross arm insulator 140 and the second cross arm insulator 150 can also use porcelain
The composite material insulator of insulator or other forms.
Flange 144 and flange 145 are generally made of metal materials such as aluminium, copper.Specifically, flange 144 includes flange cylinder
And ring flange, several connecting holes are set on ring flange for connecting.Flange 145 includes flange cylinder and the company being fixed on flange cylinder
Several connecting holes are arranged on connecting plate for connecting for fishplate bar.
Composite insulator 1402 and 1401 structure of composite insulator are essentially identical, except that 1402 liang of composite insulator
Two 146 structures of flange at end are identical as flange 144.
Composite insulator 1401 and composite insulator 1402 are connected shape by respective flange 144 and flange 146 respectively
It, specifically, can be using corresponding connecting hole phase on the ring flange of flange 144 and flange 146 at the first cross arm insulator 140
The modes such as mode or welding with the connection of merga pass bolt and nut link together.Another method of composite insulator 1402
First cross arm insulator 140 is connected to tower head 110 for connecting with the ring flange 1623 on the first auxiliary arm 162 by orchid 146
On, another flange 145 of composite insulator 1401 is used to link together with the other end 152 of the second cross arm insulator 150.
Second cross arm insulator 150 is identical as 140 structure of the first cross arm insulator, and details are not described herein.
Flange 155 and the first cross arm insulator referring to Fig. 3 and Fig. 4, in the second end 152 of the second cross arm insulator 150
Flange 145 in 140 second end 142 is linked together by end coupling 105 for mounting conducting wire.Flange 145 and method
The connecting hole on connecting plate on orchid 155 is connected to after matching with the connecting hole on end coupling 105 by bolt and nut
Together, or other common connection types of this field can also be used, details are not described herein.
Referring to fig. 4, unicuspid cross-arm 120 further includes an auxiliary cross arm insulator 170, assists cross arm insulator 170 at it
Both ends are respectively connected to the flange 146 at 140 middle part of flange 156 and the first cross arm insulator at 150 middle part of the second cross arm insulator
On.Specifically, in the present embodiment, auxiliary cross arm insulator 170 is composite insulator, including solid insulated rod 171 and cladding
In the connection gold of the both ends setting of the parachute skirt (not shown) and solid insulated rod 171 of solid insulated rod outer surface
Tool 172.Connection sheet 1464 is provided on flange 156 and flange 146 for being cooperatively connected with connection gold utensil 172, so that
First cross arm insulator 140, the second cross arm insulator 150, auxiliary cross arm insulator 170 together constitute A in direction along the horizontal plane
Font, the open end of A font is towards tower head 110, and the top of A font is for mounting conducting wire.
Fig. 4 is combined referring to fig. 2, and unicuspid cross-arm 120 further includes a first oblique pull insulator 180, the first oblique pull insulator
180 one end are connected on tower head 110, are specifically connected in the top of the first cross arm insulator 140 and the second cross arm insulator 150
It is connected on tower head 110, in practical applications, specific tie point can determine on tower head 110 according to actual needs, as long as can
Stable connection；First oblique pull insulator, 180 other end is connected on end coupling 105.First oblique pull insulator 180 exists
Projection in horizontal plane is located within the V-shape angle that the first cross arm insulator 140 and the second cross arm insulator 150 are formed.?
In the present embodiment, the projection of the first oblique pull insulator 180 in the horizontal plane is located at the first cross arm insulator 140 and the second cross-arm is exhausted
On the angular bisector for the V-shape angle that edge 150 is formed.
Referring to fig. 2, the auxiliary arm 160 of each of unicuspid cross-arm 120 is correspondingly arranged an auxiliary oblique pull insulator 164, and auxiliary is oblique
164 one end of sliding insulator is connected on tower head 110 in the top of auxiliary arm 160, and specific tie point can be according to actual needs in tower
It is determined on first 110, as long as being capable of stable connection；The other end is connected to free end 161.In other examples, may be used
To be only correspondingly arranged an auxiliary oblique pull insulator 164 on an auxiliary arm 160 wherein.
Embodiment two:
Referring to Fig. 5, the structure of the unicuspid cross-arm 220 in the present embodiment and the structure of the unicuspid cross-arm 120 in embodiment one
It is essentially identical, the difference is that the first cross arm insulator 240 and the second cross arm insulator 250 are a composite insulator structure
At, be not provided with auxiliary cross arm insulator.Also, the first cross arm insulator 240 is connected directly to the midpoint of the first angle steel 201, from
And be connected on tower head 210, it is not provided with auxiliary arm and auxiliary oblique pull insulator.The structure and embodiment of second cross arm insulator 250
It is identical in one.
Certainly, the utility model is not limited to this, in other examples, is also possible to the second cross arm insulator 250
Also it is connected directly to the midpoint of the second angle steel.Either the first cross arm insulator 240 and the second cross arm insulator 250 are directly
It is connected on the midpoint of corresponding angle steel.In addition, in other examples, the first cross arm insulator 240 or the second cross-arm are exhausted
Edge 250 amesiality can also be connected on corresponding angle steel.
Embodiment three:
Referring to Fig. 6, the structure of the unicuspid cross-arm 320 in the present embodiment and the structure of the unicuspid cross-arm 120 in embodiment one
It is essentially identical, except that it is additionally provided with a second oblique pull insulator 390 and a third oblique pull insulator 391, second
One end of oblique pull insulator 390 is connected to the junction of the first oblique pull insulator 380 and tower head 310, the second oblique pull insulator 390
The other end be connected to the junction of the first cross arm insulator 340 with auxiliary cross arm insulator 370.Third oblique pull insulator 391
One end be connected to the junction of the first oblique pull insulator 380 with tower head 310, the other end connection of third oblique pull insulator 391
In the junction of the second cross arm insulator 350 and auxiliary cross arm insulator 370.
Certainly, the utility model is not limited to this, and in other examples, the second oblique pull insulator 390 and third are oblique
Sliding insulator 391 can also select one setting.
The technology contents and technical characterstic of the utility model have revealed that as above, it being understood, however, that in the utility model
Under creative ideas, those skilled in the art can make various changes and improve to above structure and material, including here individually
Disclosure or the combination of claimed technical characteristic, it will be apparent that other combinations including these features.These deformations and/or combination
It each falls in technical field involved in the utility model, and falls into the protection scope of the utility model claims.
Claims (10)
1. a kind of unicuspid cross-arm is used for power transmission tower, the power transmission tower includes tower head, it is characterised in that: the tower head is along the horizontal plane
Section be rectangular cross-sectional, the unicuspid cross-arm has two groups of cross arm insulators, is arranged to V-shape along the horizontal plane, two groups
The one end of the cross arm insulator being located at V-shape opening is separately positioned on the adjacent both sides of the rectangular cross-sectional, and two
The other end positioned at V-shape apex of the group cross arm insulator is joined together to form mounting point for mounting conducting wire.
2. unicuspid cross-arm as described in claim 1, it is characterised in that: the cross arm insulator is composite cross-arm insulator.
3. unicuspid cross-arm as described in claim 1, it is characterised in that: cross arm insulator described in any group is opened positioned at V-shape
One end at mouthful is connected directly to the midpoint of any side in the adjacent both sides of the rectangular cross-sectional.
4. unicuspid cross-arm as described in claim 1, it is characterised in that: outwardly extending auxiliary arm is set on the tower head, it is described
Auxiliary arm one end is fixed on the tower head, and the auxiliary arm other end is free end, and cross arm insulator described in any group is located at V word
One end of type opening is connected on the free end.
5. unicuspid cross-arm as claimed in claim 4, it is characterised in that: the auxiliary arm includes the first auxiliary arm and the second auxiliary arm, institute
The first end of the first end and the second auxiliary arm of stating the first auxiliary arm is connected on the two adjacent vertex of the tower head, institute
The second end of the second end and the second auxiliary arm of stating the first auxiliary arm is joined together to form the free end.
6. unicuspid cross-arm as claimed in claim 5, it is characterised in that: the vertical middle face of the tower head is arranged in the free end
On.
7. unicuspid cross-arm as described in claim 1, it is characterised in that: cross arm insulator described in every group is two hollow insulators
It is connected to each other by flange.
8. unicuspid cross-arm as claimed in claim 7, it is characterised in that: the unicuspid cross-arm further includes an auxiliary cross-arm insulation
Son, the auxiliary cross arm insulator at its both ends be respectively connected to two groups described in cross arm insulator the flange so that two groups
The cross arm insulator and the auxiliary cross arm insulator collectively form A font in direction along the horizontal plane.
9. unicuspid cross-arm as described in claim 1, it is characterised in that: the unicuspid cross-arm further includes an oblique pull insulator,
Oblique pull insulator one end is connected to the tower head above the cross arm insulator, and the oblique pull insulator other end connects
It connects in the cross arm insulator on the other end of V-shape apex.
10. a kind of power transmission tower, the power transmission tower includes tower head, it is characterised in that: is arranged on the tower head just like claim 1-9
Described in any item unicuspid cross-arms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735672.7U CN209228165U (en) | 2018-10-24 | 2018-10-24 | A kind of unicuspid cross-arm and power transmission tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821735672.7U CN209228165U (en) | 2018-10-24 | 2018-10-24 | A kind of unicuspid cross-arm and power transmission tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208998A (en) * | 2018-10-24 | 2019-01-15 | 国网新疆电力有限公司建设分公司 | A kind of unicuspid cross-arm and power transmission tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208998A (en) * | 2018-10-24 | 2019-01-15 | 国网新疆电力有限公司建设分公司 | A kind of unicuspid cross-arm and power transmission tower |
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