CN209228176U - A kind of double pointed cross-arm and power transmission tower - Google Patents
A kind of double pointed cross-arm and power transmission tower Download PDFInfo
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- CN209228176U CN209228176U CN201821735673.1U CN201821735673U CN209228176U CN 209228176 U CN209228176 U CN 209228176U CN 201821735673 U CN201821735673 U CN 201821735673U CN 209228176 U CN209228176 U CN 209228176U
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Abstract
The utility model discloses a kind of double pointed 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 double pointed cross-arm has two groups of point cross-arms, every group of above-mentioned sharp cross-arm has two groups of cross arm insulators, it is arranged to V-shape along the horizontal plane, the one end of two groups of above-mentioned cross arm insulators being located at V-shape opening is separately positioned 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 is joined together to form mounting point for mounting conducting wire, two above-mentioned mounting points of two groups of above-mentioned sharp cross-arms are located at the same side of above-mentioned tower head.The double pointed cross-arm O&M of the utility model is convenient, at low cost.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 double pointed 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 double pointed cross-arm, the double pointed 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 double pointed 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 double pointed cross-arm has two
The sharp cross-arm of group, every group of above-mentioned sharp cross-arm have two groups of cross arm insulators, are arranged to V-shape, two groups of above-mentioned cross-arms along the horizontal plane
The one end of insulator being located at V-shape opening is separately positioned on the adjacent both sides of above-mentioned rectangular cross-sectional, two groups of above-mentioned cross
The other end positioned at V-shape apex of load insulator is joined together to form mounting point for mounting conducting wire, two groups of above-mentioned points
Two above-mentioned mounting points of cross-arm are located at the same side of above-mentioned tower head.
Above-mentioned double pointed 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 tower head on adjacent both sides, namely can be directly connected to midpoint, tower can also be indirectly connected to by other structures
Head, so that every group of point cross-arm is able to the adjacent both sides of bridging tower head, in this way in the identical situation of cross-arm length, compared to traditional
One end that two groups of cross arm insulators are located at opening width of corridor occupied when being connected to tower head same side wants small, reduces
Cost；Furthermore the mounting point of two groups of point cross-arms is located at the same side of tower head, and in the same side of tower head, there are two mounting points to hang in this way
Conducting wire is connect, the other side of tower head avoids waste while satisfying the use demand, save cost without mounting point.
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, two groups of above-mentioned sharp cross-arms are symmetrical arranged along the vertical middle face of above-mentioned tower head.Two groups of point cross-arms are symmetrical arranged,
Two sides stress is more stable, and overall structure is more reliable.
Preferably, above-mentioned tower head is provided with mutually perpendicular first laterally in the horizontal plane and second is lateral, and above-mentioned point is horizontal
The one end of wherein one group of cross arm insulator of load being located at V-shape opening is connected directly to above-mentioned tower in above-mentioned first transverse direction
Head.This group of cross arm insulator is connected directly to tower head, is not necessarily to other accessories, easy to connect, saves material.
Preferably, outwardly extending auxiliary arm is laterally arranged along above-mentioned second in above-mentioned tower head, and above-mentioned auxiliary arm one end is fixed on
It states on tower head, the above-mentioned auxiliary arm other end is free end, and the one end of another group of above-mentioned cross arm insulator being located at V-shape opening connects
It connects on above-mentioned free end.Auxiliary arm, which is arranged, makes this group of cross arm insulator in the case where meeting the air gap requirement, end
It can be more nearly tower head, to reduce line corridor width, the occupied area of power transmission tower is reduced, reduce land used cost.
Preferably, above-mentioned auxiliary arm includes the first auxiliary arm and the second auxiliary arm, the first end and above-mentioned second of above-mentioned first auxiliary arm
The first end of auxiliary arm is connected on the two adjacent vertex of above-mentioned tower head, the second end and above-mentioned second of above-mentioned first auxiliary arm
The second end of auxiliary arm is joined together to form above-mentioned free end.Corresponding connection side on first auxiliary arm and the second auxiliary arm and tower head
Stable triangular support configurations can be formed, 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, every group of above-mentioned sharp cross-arm further includes an auxiliary cross arm insulator, and above-mentioned auxiliary cross arm insulator is at it
Both ends are respectively connected to the above-mentioned flange of two groups of above-mentioned cross arm insulators, so that two groups of above-mentioned cross arm insulators and above-mentioned auxiliary are horizontal
Load insulator collectively forms A font in direction along the horizontal plane.Assist the setting of cross arm insulator so that the three-legged structure of sharp cross-arm more
Add firm, can satisfy the requirement of higher voltage power transmission line.
Preferably, every group of above-mentioned sharp cross-arm further includes an oblique pull insulator, and above-mentioned oblique pull insulator one end is in above-mentioned cross
Above-mentioned tower head is connected to above load insulator, and what the above-mentioned oblique pull insulator other end was connected to above-mentioned cross arm insulator is located at V
On the other end of font apex.Setting oblique pull insulator can share cross arm insulator in the horizontal plane perpendicular to above-mentioned cross-arm
The load that insulator direction is subject to improves double pointed cross-arm work to reduce the moment of flexure that above-mentioned cross arm insulator root is subject to
Reliability, 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 double pointed cross-arm is provided on the tower head.
Detailed description of the invention
Fig. 1 is the rough schematic view of the power transmission tower 1000 of the utility model embodiment one；
Fig. 2 be the utility model embodiment one tower head 110 on the simplification stereoscopic schematic diagram of double pointed cross-arm 120 is set；
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 also shows the first oblique pull insulator 180 in Fig. 3；
Fig. 4 is the detail schematic diagram of Fig. 3；
Fig. 5 is the stereoscopic schematic diagram of the composite insulator 1401 of the utility model embodiment one；
Fig. 6 is the flange 145 of the utility model embodiment one and the amplification stereoscopic schematic diagram that connecting plate 104 cooperates；
Fig. 7 be the utility model embodiment two tower head 210 on the simplification stereoscopic schematic diagram of double pointed cross-arm 220 is set；
Fig. 8 be the utility model embodiment three tower head 310 on the simplification stereoscopic schematic diagram of double pointed cross-arm 320 is set.
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, double pointed cross-arm is provided on tower head 110
120, for mounting conducting wire 1003, the section of tower head 110 along the horizontal plane is square double pointed 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, double pointed cross-arm 120 has two groups of point cross-arms 130, two groups of 130 knots of point cross-arm
Structure is identical, along the vertical middle symmetrical setting in face of tower head 110.Referring to Fig. 3, every group of point cross-arm 130 has two groups of structures identical
Cross arm insulator, for purposes of illustration only, being denoted as the first cross arm insulator 140 and the second cross arm insulator 150 respectively, the first cross-arm is exhausted
Edge 140 and the second cross arm insulator 150 are arranged to V-shaped along the horizontal plane.It is carried out by taking wherein one group of point cross-arm 130 as an example detailed
Illustrate, tower head 110 has square in the horizontal cross-section for connecting the first cross arm insulator 140 and the second cross arm insulator 150
Four edges, the first cross arm insulator 140 and the second cross arm insulator 150 are separately positioned on two phases adjacent on tower head 110
It is the first angle steel 101 for the first cross arm insulator 140 to be arranged mutually on vertical angle steel, insulate for the second cross-arm to be arranged
Son 150 is the second angle steel 102.
Referring to Fig. 3 and Fig. 4, tower head 110 is provided with mutually perpendicular first transverse direction X and the second transverse direction Y in the horizontal plane, the
One cross arm insulator 140 is located at one end 141 at V-shape opening and is directly connected to the by connector 103 on the first transverse direction X
The midpoint of one angle steel 101.Outwardly extending auxiliary arm 160 is arranged along the second transverse direction Y in tower head 110, and auxiliary 160 one end of arm is fixed on second
On angle steel 102, auxiliary 160 other end of arm is free end 161, and free end 161 is located on the middle line extended line of the second angle steel 102, the
The one end 151 of two cross arm insulators 150 being located at V-shape opening is connected on free end 161.First cross arm insulator 140
The other end 152 for being located at V-shape apex positioned at the other end 142 of V-shape apex and the second cross arm insulator 150 is connected to
Mounting point 1004 is formed together for mounting conducting wire.Two mounting points 1004 of two groups of point cross-arms 130 are located at the same of tower head 110
Side is located at the same side of the first angle steel 101, while two groups of point cross-arms 130 are symmetrical along the vertical middle face of the first angle steel 101,
I.e. along the vertical middle symmetrical setting in face of tower head 110.
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 second angle steel 102.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 second angle steel 102
The second cross arm insulator 150 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 second cross-arm
Edge 150 connects, and one end 151 that ring flange 1623 and the second cross arm insulator 150 specifically, in second end 1622 is arranged matches
Close connection.Second auxiliary arm 163 is angle member, is connected directly between on the first auxiliary arm 162.First auxiliary arm 162 and the second auxiliary arm 163 it
Between, between the first auxiliary arm 162 and the second angle steel 102, between the second auxiliary arm 163 and the second angle steel 102 pass through connecting board structure
Connection, connecting board structure are common connector, generally plate-like connecting member, are provided with several connecting holes for matching with bolt
Connection is closed, details are not described herein.In the present embodiment, free end 161 is actually for connecting the first cross arm insulator 140
Ring flange 1623.
Certainly, the utility model is not limited to this, and in other examples, auxiliary arm 160 can also be using other along the
Two transverse direction Y stretch out and can stablize the structure of the second cross arm insulator 150 of support, for example auxiliary arm 160 is that one end is connected to second
Steel pipe or angle member on angle steel 102, 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 second angle steel 102 in this way be not in same level, and free end 161 is located at the perpendicular of the second angle steel 102 at this time
In straight on face.
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 two composite insulators 1401, and two 1401 structures of composite insulator are identical.
Referring to Fig. 5, composite insulator 1401 includes hollow insulation tube 143, the parachute skirt for being coated on hollow 143 outer surface of insulation tube
144 and it is connected to the flange 145 and flange 146 at hollow 143 both ends of insulation tube.It indicates, simplifies multiple for clarity in Fig. 4
Hollow insulator 1401 is closed, parachute skirt 144 is not shown.
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 144 is by rubber material through vacuum integral injection molding.Specifically, rubber material can be selected silicon rubber,
The materials such as nitrile rubber, fluorubber, fluorine silicone rubber, ethylene propylene diene rubber.Hollow insulation tube 143 is placed in a mold, by rubber
Collagen-based materials inject mold in it is evacuated after hollow insulation tube 143 outer surface sulfidization molding formed insulating layer, can be used
Room temperature vulcanization molding or high temperature vulcanized molding.Certainly, the first cross arm insulator 140 and the second cross arm insulator 150 can also be adopted
With porcelain insulator or the composite material insulator of other forms.
Referring to Fig. 5, flange 145 and flange 146 are generally made of metal materials such as aluminium, copper.Specifically, flange 145 wraps
The cross connecting plate 1452 for including flange cylinder 1451 and being fixed on flange cylinder 1451 is arranged on cross connecting plate 1452 several
First connecting hole 1453.12 the first connecting holes 1453, each plate of cross connecting plate 1452 are set in the present embodiment
On set three.Flange 146 includes flange cylinder 1461 and ring flange 1462, and several second connecting holes are arranged on ring flange 1462
1463。
Referring to fig. 4, two composite insulators 1401 form the first cross arm insulator 140 by the connection of respective flange 146,
Specifically, in conjunction with Fig. 5, corresponding second connecting hole 1463 matches to merge and is bolted or welds on two ring flanges 1462
It the modes such as connects to link together.The flange 145 of one of hollow insulator 1401 with connector 103 for connect thus by the
One cross arm insulator 140 is connected on tower head 110, and the flange 145 of another hollow insulator 1401 is used for exhausted with the second cross-arm
Edge 150 connects.
Referring to fig. 4, the generally plate structure of connector 103 has horizontally disposed plate-like body 1031, if being arranged thereon
Dry third connecting hole 1032.Specifically, in the present embodiment, 18 third connecting holes 1032 are arranged in plate-like body 1031 to use
It is attached in the hole cooperation with corresponding position on tower head 110, while 12 third connecting holes 1032 is set and are used for and two groups
Two the first cross arm insulators 140 in sharp cross-arm 130 are attached.Two surfaces up and down of connector 103 are set vertically respectively
Two accessory plates 1033 are set, the accessory plate 1033 on upper and lower surfaces is symmetrical arranged along the horizontal plane, is arranged on each accessory plate 1033
Three auxiliary connecting hole (not shown)s are for connecting.In this way, on one of accessory plate 1033, lower surface on upper surface
A cross-connecting structure is collectively formed for exhausted with the first cross-arm with its symmetrically arranged accessory plate 1033, plate-like body 1031
Edge 140 connects, and the axial line of cross-connecting structure coincides with the axial line for the first cross arm insulator 140 accordingly connecting,
Convenient for positioning, facilitate connection.Another group of accessory plate 1033 and plate-like body 1031 similarly form another cross-connecting structure.
Referring to fig. 4 and Fig. 6, when connection, eight connecting plates 104 are set, on each 104 corresponding position of connecting plate setting with
Corresponding three the 4th connecting holes 1041 of first connecting hole 1453 are for being cooperatively connected, while the setting and the on corresponding position
Corresponding three the 5th connecting holes 1042 of three connecting hole 1032 are for being cooperatively connected.The length of connecting plate 104 is greater than cross company
The length of fishplate bar 1452, by the cross connection knot corresponding on connector 103 of cross connecting plate 1452 on flange 145
After structure abuts against, every two connecting plate 104 clamps the wherein a piece of of cross structure, and passes through bolt, nut and corresponding connecting hole
Mating connection, so that flange 145 and the first angle steel 101 are connected and fixed.
Referring to fig. 4, the second cross arm insulator 150 is similar with 140 structure of the first cross arm insulator, by a composite insulator
1401 and composite insulator 1501 form.Composite insulator 1501 and 1401 structure of composite insulator are essentially identical, and institute is not
Be its both ends setting flange 155 and flange 156 structure it is identical as the structure of flange 146, such flange 146 and method
Blue 156 second cross arm insulators 150 of composition in mating connection.Ring flange 1623 on flange 155 and the first auxiliary arm 162, which cooperates, to be connected
It connects for the second cross arm insulator 150 to be connected on auxiliary arm 160.
Flange 145 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.Two flanges 145
It is similar with the connection structure of connector 103 with the specific connection structure of end coupling 105 and flange 145, it is no longer superfluous herein
It states.
Referring to Fig. 3 and Fig. 4, every group of point cross-arm 130 further includes an auxiliary cross arm insulator 170, assists cross arm insulator
170 are respectively connected to 140 middle part of flange 156 and the first cross arm insulator at 150 middle part of the second cross arm insulator at its both ends
On flange 146.Specifically, in the present embodiment, auxiliary cross arm insulator 170 is composite insulator, including solid insulated rod 171
With the both ends setting of the parachute skirt (not shown) and solid insulated rod 171 that are coated on solid insulated rod outer surface
Connection gold utensil 172.Connection sheet 1464 is provided on flange 156 and flange 146 to be used to be cooperatively connected with connection gold utensil 172, from
And make the first cross arm insulator 140, the second cross arm insulator 150, auxiliary the cross arm insulator 170 common structure in direction along the horizontal plane
At A font, the open end of A font is towards tower head 110, and the top of A font is for mounting conducting wire.
Referring to figs. 2 and 3 and Fig. 4, every group 130 sharp cross-arm further includes a first oblique pull insulator 180, and the first oblique pull is exhausted
180 one end of edge is connected on tower head 110, specifically in the upper of the first cross arm insulator 140 and the second cross arm insulator 150
Side is connected on tower head 110, and in practical applications, specific tie point can determine on tower head 110 according to actual needs, as long as
It being capable of stable connection；First oblique pull insulator, 180 other end is connected on end coupling 105.First oblique pull insulator
180 projection in the horizontal plane be located at V-shape angle that the first cross arm insulator 140 and the second cross arm insulator 150 are formed it
It is interior.
Referring to fig. 2, every group of point cross-arm 130 also sets up an auxiliary oblique pull insulator 164, assists oblique pull insulator 164 1
End is connected on tower head 110 in the top of auxiliary arm 160, and specific tie point can determine on tower head 110 according to actual needs, only
Being capable of stable connection；The other end is connected to free end 161.
Embodiment two:
Referring to Fig. 7, the structure of the double pointed cross-arm 220 in the present embodiment and the structure of the double pointed cross-arm 120 in embodiment one
It is essentially identical, except that first cross arm insulator 240 and the second cross arm insulator 250 are one in every group of point cross-arm 230
A composite insulator is constituted, and is not provided with auxiliary cross arm insulator.Wherein the second cross arm insulator 250 of one group of point cross-arm 230 is straight
The midpoint that connector is connected to the second angle steel 202 was connected, to be connected on tower head 210, is not provided with auxiliary arm and auxiliary oblique pull
Insulator.The structure of another group of point cross-arm 230 is identical as the structure of sharp cross-arm 130 in embodiment one.
Certainly, the utility model is not limited to this, in other examples, is also possible in two groups of point cross-arms 230
Second cross arm insulator 250 is connected directly to the midpoint of the second angle steel 202.Either the first cross arm insulator 240 and the
Two cross arm insulators 250 are directly connected on the midpoint of corresponding angle steel.In addition, in other examples, the first cross-arm is exhausted
Edge 240 or the second cross arm insulator 250 amesiality can also be connected on corresponding angle steel.
Embodiment three:
Referring to Fig. 8, the structure of the double pointed cross-arm 320 in the present embodiment and the structure of the double pointed cross-arm 120 in embodiment one
It is essentially identical, except that every group of point cross-arm 330 is additionally provided with a second oblique pull insulator 390 and a third oblique pull is exhausted
Edge 391, one end of the second oblique pull insulator 390 are connected to the junction of the first oblique pull insulator 380 with tower head 310, and second
The other end of oblique pull insulator 390 is connected to the junction of the second cross arm insulator 350 with auxiliary cross arm insulator 370.Third
One end of oblique pull insulator 391 is connected to the junction of the first oblique pull insulator 380 and tower head 310, third oblique pull insulator 391
The other end be connected to the junction of the first cross arm insulator 340 with 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 (12)
1. a kind of double pointed 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 double pointed cross-arm has two groups of point cross-arms, and there are point cross-arm described in every group two groups of cross-arms to insulate
Son, is arranged to V-shape along the horizontal plane, and the one end of cross arm insulator described in two groups being located at V-shape opening is separately positioned on
On the adjacent both sides of the rectangular cross-sectional, the other end positioned at V-shape apex of cross arm insulator described in two groups is connected to
Mounting point is formed together for mounting conducting wire, two mounting points of point cross-arm described in two groups are located at the same of the tower head
Side.
2. double pointed cross-arm as described in claim 1, it is characterised in that: the cross arm insulator is composite cross-arm insulator.
3. double pointed cross-arm as described in claim 1, it is characterised in that: point cross-arm described in two groups is along the vertical middle face of the tower head
It is symmetrical arranged.
4. double pointed cross-arm as described in claim 1, it is characterised in that: the tower head is provided with mutually perpendicular in the horizontal plane
First is laterally lateral with second, the one end of the wherein cross arm insulator described in one group of the point cross-arm being located at V-shape opening
The tower head is connected directly in first transverse direction.
5. double pointed cross-arm as claimed in claim 4, it is characterised in that: the tower head is laterally arranged along described second to extend outwardly
Auxiliary arm, described auxiliary arm one end is fixed on the tower head, and the auxiliary arm other end is free end, the insulation of cross-arm described in another group
The one end of son being located at V-shape opening is connected on the free end.
6. double pointed cross-arm as claimed in claim 5, 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.
7. double pointed cross-arm as claimed in claim 6, it is characterised in that: the vertical middle face of the tower head is arranged in the free end
On.
8. double pointed 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.
9. double pointed cross-arm as claimed in claim 8, it is characterised in that: point cross-arm described in every group further includes that an auxiliary cross-arm is exhausted
Edge, 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
The group cross arm insulator and the auxiliary cross arm insulator collectively form A font in direction along the horizontal plane.
10. double pointed cross-arm as described in claim 1, it is characterised in that: point cross-arm described in every group further includes an oblique pull insulation
Son, oblique pull insulator one end are connected to the tower head above the cross arm insulator, and the oblique pull insulator is another
End be connected to the cross arm insulator on the other end of V-shape apex.
11. double pointed 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.
12. 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-
11 described in any item double pointed cross-arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735673.1U CN209228176U (en) | 2018-10-24 | 2018-10-24 | A kind of double pointed cross-arm and power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735673.1U CN209228176U (en) | 2018-10-24 | 2018-10-24 | A kind of double pointed cross-arm and power transmission tower |
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| Publication Number | Publication Date |
|---|---|
| CN209228176U true CN209228176U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821735673.1U Active CN209228176U (en) | 2018-10-24 | 2018-10-24 | A kind of double pointed cross-arm and power transmission tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252732A (en) * | 2018-10-24 | 2019-01-22 | 国网新疆电力有限公司建设分公司 | A kind of double pointed cross-arm and power transmission tower |
-
2018
- 2018-10-24 CN CN201821735673.1U patent/CN209228176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252732A (en) * | 2018-10-24 | 2019-01-22 | 国网新疆电力有限公司建设分公司 | A kind of double pointed cross-arm and power transmission tower |
| CN109252732B (en) * | 2018-10-24 | 2024-03-26 | 国网新疆电力有限公司建设分公司 | Double-tip cross arm and power transmission tower |
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