CN209277669U - A kind of overhead transmission line line bar cross-arm - Google Patents
A kind of overhead transmission line line bar cross-arm Download PDFInfo
- Publication number
- CN209277669U CN209277669U CN201821995087.0U CN201821995087U CN209277669U CN 209277669 U CN209277669 U CN 209277669U CN 201821995087 U CN201821995087 U CN 201821995087U CN 209277669 U CN209277669 U CN 209277669U
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- China
- Prior art keywords
- arm
- cross
- shaft
- overhead transmission
- transmission line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000012212 insulator Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000000356 contaminant Substances 0.000 abstract description 2
- 208000025274 Lightning injury Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 244000080575 Oxalis tetraphylla Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a kind of overhead transmission line line bar cross-arms, including shaft, fixed ring, preceding cross-arm, secondary cross-arm, cross-arm afterwards, the preceding cross-arm is mounted on the welded plate being fixedly connected with fixed ring, it is hinged by shaft between cross-arm set and preceding cross-arm, cross-arm is set in cross-arm set afterwards, the limited block of cross-arm set front end setting plays the role of guiding and limit, one end of secondary cross-arm is fixedly connected on cross-arm and puts on, the other end is hinged by shaft and the hinged seat on shaft, preceding cross-arm, cross-arm set, secondary cross-arm and shaft form triangle, the tension difference of self structure balance cross arm both ends conducting wire can be passed through, it avoids that line-outage contingency occurs, cross-arm uses composite material afterwards, and filled with fire prevention filler inside rear cross-arm two sides, it can effectively prevent rainwater and external contaminants enter tubular body, reduce insulation performance, play fire-proof and damp-proof Effect, cross-arm, which is put on, is provided with lantern ring, hang over operator can by cross-arm body on the rope on waistband, and convenient working employee makees.
Description
Technical field
The utility model is a kind of overhead transmission line line bar cross-arm, belongs to power supply line's device field.
Background technique
Cross-arm is component part important in shaft tower, its effect be for installing insulator and fitting, with support conducting wire,
Lightning conducter, and be allowed to keep certain safe distance by regulation, it outside the vertically and horizontally loading for bearing conducting wire, also subject to compared with
Big wire tension, currently, requirement of the national grid to power supply reliability is higher and higher, and to carry conducting wire etc. defeated for transmission line of electricity
Electric equipment, to guarantee power-on time, it is necessary to guarantee security performance of the shaft tower under various meteorological conditions, existing composite material
Cross-arm is mostly truss-like, since meteorological factor influence be easy to cause conducting wire tie point when keeping wire tension difference in cross-arm two sides larger
Fracture, influences the normal operation of power grid.
Existing angle steel iron cross arm, poor insulativity, be struck by lightning conductive Frequent Accidents, and lightning stroke trip Frequent Accidents easily get rusty resistance to
Corrosive power is weak, and porcelain pole arm intensity is inadequate, and resist bending can be insufficient, and wooden cross arm intensity is inadequate, and corrosion resistance is weak, and when rainwater into
After entering cross-arm inside, the insulating capacity of cross-arm declines, and brings security risk to operation of power networks.
Utility model content
The utility model is existing in practice to solve the prior art by providing a kind of overhead transmission line line bar cross-arm
It is insufficient.
In order to achieve the above purpose, the utility model is achieved through the following technical solutions:
A kind of overhead transmission line line bar cross-arm, including fixed ring, shaft, hinged seat, secondary cross-arm, lantern ring, rear cross-arm, cross-arm
Cover limit hole, cross-arm set, shaft, preceding cross-arm, welded plate, limited block, rear cross-arm limit hole, insulator mounting hole, fire prevention filling
Object and sliding slot, it is characterised in that: the preceding cross-arm is mounted on the welded plate being fixedly connected with fixed ring, and cross-arm, which is put on, to be provided with
Lantern ring is rotatablely connected between cross-arm set and preceding cross-arm by shaft, and one end of secondary cross-arm is fixed by screws in cross-arm set
On, the other end is hinged with the hinged seat that is fixed in fixed ring by shaft, and Fixing shrink ring is located on shaft, preceding cross-arm, secondary cross
Load and shaft form triangle, and the cross-arm set is provided with the cross-arm section big 2mm-4mm of side length after cavity cross section side ratio, cavity
Left and right inner wall on offer several equally distributed cross-arms set limit holes, cross-arm set front end offers through-hole, and through hole end
Left and right inner wall on be provided with limited block.
Further, the rear cross-arm is hollow rectangular tube, and fire prevention filler is filled with inside rear cross-arm front and back end,
Cross-arm upper surface offers the insulator mounting hole that vertical direction pierces rear cross-arm afterwards, and the left and right sides of rear cross-arm offers sliding slot,
The bond length of sliding slot is 2mm-4mm bigger than limited block side length, and the rear cross-arm that several transverse directions pierce rear cross-arm is offered in sliding slot
Limit hole.
Further, the welded plate is mounted below hinged seat, and preceding cross-arm, cross-arm set and rear cross-arm are horizontally disposed, secondary
Cross-arm is obliquely installed, and rear cross-arm setting is in cross-arm set, and rear cross-arm can slide in cross-arm set.
Further, the rear cross-arm surface is made of glass fibre and resin compound or nylon, rear cross-arm main body
Pipe thickness be 5mm-11mm.
Further, the material of the preceding cross-arm, cross-arm set and secondary cross-arm is Q235 steel.
Further, the fire prevention filler is polyurethane foam material.
Compared with prior art, the utility model has the beneficial effects that the utility model provides a kind of overhead transmission line line
Bar cross-arm, the tension difference of this cross-arm energy autobalance conducting wire avoid that short-term accident occurs, sliding in cross-arm set by rear cross-arm
It is dynamic, the position of hanging wire can be adjusted according to the actual situation, and shaft is made still not influence to use in the case where certain inclined situation occurs, it is real
Strong with property, the outer middle side part of rear cross-arm is provided with fire prevention filler, can effectively prevent rainwater and enters reduction insulation performance, and can prevent
External contaminants enters tube body, plays the moisture-proof effect of interior fire protection.
Detailed description of the invention
By reading the detailed description done with reference to the following drawings to non-limiting embodiment, other of the utility model are special
Advantage of seeking peace will be more obvious:
Fig. 1 is a kind of structural schematic diagram of overhead transmission line line bar cross-arm of utility model；
Fig. 2 is the cross-sectional view that a kind of cross-arm of overhead transmission line line bar cross-arm of utility model covers；
Fig. 3 is a kind of structural schematic diagram of the rear cross-arm of overhead transmission line line bar cross-arm of utility model；
In figure: 1, fixed ring；2, shaft；3, hinged seat；4, secondary cross-arm；5, lantern ring；6, rear cross-arm；7, cross-arm set limit
Hole；8, cross-arm set；9, shaft；10, preceding cross-arm；11, welded plate；12, limited block；13, rear cross-arm limit hole；14, insulator is pacified
Fill hole；15, fire prevention filler；16, sliding slot.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
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 embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, a kind of overhead transmission line line bar cross-arm, including fixed ring 1, shaft 2, hinged seat 3, secondary cross-arm
4, lantern ring 5, rear cross-arm 6, cross-arm set limit hole 7, cross-arm cover 8, shaft 9, preceding cross-arm 10, welded plate 11, limited block 12, rear cross-arm
Limit hole 13, insulator mounting hole 14, fire prevention filler 15 and sliding slot 16, the preceding cross-arm 10 are mounted on fixed with fixed ring 1
On the welded plate 11 of connection, lantern ring 5 is provided on cross-arm set 8, and lantern ring 5 facilitates operator that line bar cross-arm is set in the rope of waistband
Suo Shang is convenient for carrying, and reduces the operation difficulty of operator.
It is rotatablely connected between the cross-arm set 8 and preceding cross-arm 10 by shaft 9, one end of secondary cross-arm 4 is screwed
It is connected on cross-arm set 8, the other end is hinged by shaft 9 and the hinged seat 3 being fixed in fixed ring 1, and fixed ring 1 is set in bar
On body 2, preceding cross-arm 10, secondary cross-arm 4 and shaft 2 form triangle, and the welded plate 11 is mounted on 3 lower section of hinged seat, preceding cross-arm
10, cross-arm set 8 and rear cross-arm 6 are horizontally disposed, and secondary cross-arm 4 is obliquely installed, and the rear setting of cross-arm 6 is in cross-arm set 8, and rear cross-arm 6
It can cover in 8 and slide in cross-arm, cross-arm set 8 is provided with the 6 big 2mm of section side length of cross-arm after cavity cross section side ratio, the left and right of cavity
Several equally distributed cross-arm set limit holes 7 are offered on inner wall, cross-arm covers 8 front ends and offers through-hole, and a left side for through hole end
Limited block 12 is provided on right inner wall, rear 6 surface of cross-arm is made of glass fibre and resin compound or nylon, rear horizontal
The pipe thickness for carrying on a shoulder pole 6 main bodys is 7mm, has preferable insulation performance, can effectively prevent lightning stroke conductive accident, lightning stroke trip accident
Generation.
Cross-arm 6 is hollow rectangular tube after described, and fire prevention filler 15 is filled with inside rear 6 front and back end of cross-arm, described
Fire prevention filler 15 is polyurethane foam material, can effectively prevent rainwater and enters reduction insulation performance, and can prevent external contamination
Object enters tube body, plays the moisture-proof effect of interior fire protection, and rear 6 upper surface of cross-arm offers vertical direction and pierces rear cross-arm 6
Insulator mounting hole 14, the left and right sides of rear cross-arm 6 offer sliding slot 16, and the bond length of sliding slot 16 is bigger than limited block side length 12
3mm offers the rear cross-arm limit hole 13 that several transverse directions pierce rear cross-arm 6, rear cross-arm limit hole 13 and cross-arm in sliding slot 16
It is corresponding to cover limit hole 7, enables the tension difference of cross-arm autobalance conducting wire, avoids that short-term accident occurs, by rear cross-arm 6 in cross-arm
It is slided in set 8, can pass through rear 13 cross-arm of cross-arm limit hole according to the actual situation with bolt and cover limit hole 7, fix relative position,
So as to adjust the position of hanging wire, shaft is made still not influence to use in the case where certain inclined situation occurs.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (6)
1. a kind of overhead transmission line line bar cross-arm, including fixed ring (1), shaft (2), hinged seat (3), secondary cross-arm (4), lantern ring
(5), rear cross-arm (6), cross-arm cover limit hole (7), cross-arm set (8), shaft (9), preceding cross-arm (10), welded plate (11), limited block
(12), rear cross-arm limit hole (13), insulator mounting hole (14), fire prevention filler (15) and sliding slot (16), it is characterised in that: institute
It states preceding cross-arm (10) to be mounted on the welded plate (11) being fixedly connected with fixed ring (1), lantern ring (5) is provided on cross-arm set (8),
It is rotatablely connected between cross-arm set (8) and preceding cross-arm (10) by shaft (9), one end of secondary cross-arm (4) is fixed by screws
On cross-arm set (8), the other end passes through shaft (9) and the hinged seat (3) being fixed on fixed ring (1) hingedly, fixed ring (1) set
It is located on shaft (2), preceding cross-arm (10), secondary cross-arm (4) and shaft (2) form triangle, and the cross-arm set (8) is provided with cavity
Cross-arm (6) section big 2mm-4mm of side length after the side ratio of section offers several equally distributed cross on the left and right inner wall of cavity
Load set limit hole (7), cross-arm set (8) front end offers through-hole, and limited block (12) are provided on the left and right inner wall of through hole end.
2. a kind of overhead transmission line line bar cross-arm according to claim 1, it is characterised in that: cross-arm (6) is sky after described
The rectangular tube of the heart, filled with fire prevention filler (15), rear cross-arm (6) upper surface offers vertical for rear cross-arm (6) front and back end inside
Histogram offers sliding slot (16), sliding slot to the insulator mounting hole (14) for piercing rear cross-arm (6), the left and right sides of rear cross-arm (6)
(16) bond length is 2mm-4mm bigger than limited block (12) side length, offers several transverse directions in sliding slot (16) and pierces rear cross-arm
(6) rear cross-arm limit hole (13).
3. a kind of overhead transmission line line bar cross-arm according to claim 1, it is characterised in that: welded plate (11) installation
Below hinged seat (3), preceding cross-arm (10), cross-arm set (8) and rear cross-arm (6) are horizontally disposed, and secondary cross-arm (4) is obliquely installed, after
Cross-arm (6) is arranged in cross-arm set (8), and rear cross-arm (6) can the sliding in cross-arm set (8).
4. a kind of overhead transmission line line bar cross-arm according to claim 1, it is characterised in that: cross-arm (6) surface after described
It is made of glass fibre and resin compound or nylon, the pipe thickness of rear cross-arm (6) main body is 5mm-11mm.
5. a kind of overhead transmission line line bar cross-arm according to claim 1, it is characterised in that: the preceding cross-arm (10), cross
The material of load set (8) and secondary cross-arm (4) is Q235 steel.
6. a kind of overhead transmission line line bar cross-arm according to claim 1, it is characterised in that: the fire prevention filler (15)
For polyurethane foam material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995087.0U CN209277669U (en) | 2018-11-30 | 2018-11-30 | A kind of overhead transmission line line bar cross-arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821995087.0U CN209277669U (en) | 2018-11-30 | 2018-11-30 | A kind of overhead transmission line line bar cross-arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277669U true CN209277669U (en) | 2019-08-20 |
Family
ID=67609012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821995087.0U Expired - Fee Related CN209277669U (en) | 2018-11-30 | 2018-11-30 | A kind of overhead transmission line line bar cross-arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209277669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305638A (en) * | 2020-04-13 | 2020-06-19 | 广东电网有限责任公司东莞供电局 | Adjustable cross arm staple bolt structure |
| CN112459596A (en) * | 2020-11-05 | 2021-03-09 | 国网山东省电力公司聊城供电公司 | Power transmission and distribution tower erected on same tower and easy to overhaul |
-
2018
- 2018-11-30 CN CN201821995087.0U patent/CN209277669U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111305638A (en) * | 2020-04-13 | 2020-06-19 | 广东电网有限责任公司东莞供电局 | Adjustable cross arm staple bolt structure |
| CN112459596A (en) * | 2020-11-05 | 2021-03-09 | 国网山东省电力公司聊城供电公司 | Power transmission and distribution tower erected on same tower and easy to overhaul |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |