CN113445810B - Triangular cone composite insulating cross arm - Google Patents
Triangular cone composite insulating cross arm Download PDFInfo
- Publication number
- CN113445810B CN113445810B CN202110779805.0A CN202110779805A CN113445810B CN 113445810 B CN113445810 B CN 113445810B CN 202110779805 A CN202110779805 A CN 202110779805A CN 113445810 B CN113445810 B CN 113445810B
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- wire
- fitting
- tower
- triangular
- cross arm
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
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- Insulators (AREA)
Abstract
The invention relates to a triangular cone-shaped composite insulating cross arm, which comprises a connecting tower fitting, a connecting wire fitting, an insulating core body and an umbrella skirt; the tower connecting hardware fitting is used for installing the whole insulating cross arm on a telegraph pole tower, and a first triangular cavity which is communicated left and right is arranged in the tower connecting hardware fitting; the connecting wire fitting is used for fixing the electric power wire, a second triangular cavity with one end open is formed in the connecting wire fitting, and a clamping block is arranged on the inner wall of the connecting wire fitting; the insulation core body is cast into the first triangular cavity and the second triangular cavity to be integrally formed; the umbrella skirts are pressed and connected to the periphery of the insulating core at intervals. According to the invention, the insulating core body is directly cast in the connecting tower fitting and the connecting wire fitting, so that the insulating core body is tightly and reliably connected with the connecting tower fitting and the connecting wire fitting, and the insulating core body is clamped by the inverted triangular clamping block arranged on the inner wall of the connecting wire fitting, so that the insulating core body cannot slide relative to the connecting wire fitting and the connecting tower fitting.
Description
Technical Field
The invention belongs to the technical field of power grid construction, and particularly relates to a triangular cone-shaped composite insulating cross arm.
Background
The insulating cross arm is a main device for supporting the power conductor and the lightning conductor, and can keep a certain safety distance between the power conductor and between the power conductor and the lightning conductor according to a specified rule.
The existing insulating cross arm is made of alkali-free glass fiber, the core is formed by a pultrusion process of alkali-free glass fiber reinforced resin matrix composite material, the maximum bending strength born by the core is weaker, and a silicone rubber sheath is not arranged on the outer layer of the core, so that pollution flashover of the insulating cross arm cannot be prevented; the connecting hardware fitting is usually fixed on the core body through connecting pieces such as bolts; but after the insulating cross arm is used for a long time, the connecting piece of the connecting fitting is loosened under the influence of environmental factors such as wind power, so that the connecting fitting slides relative to the core body, a certain safety distance cannot be kept between the power wires, and a power distribution network accident is caused, which is a defect in the prior art.
In view of this, the present invention provides a triangular-cone-shaped composite insulating crossarm; to solve the above-mentioned drawbacks of the prior art, it is highly desirable.
Disclosure of Invention
The invention aims to provide a triangular cone-shaped composite insulating cross arm, which aims at solving the problem in the prior art that a certain safety distance cannot be kept between power wires due to the fact that a connecting fitting slides relative to a core body after an insulating cross arm is used for a long time in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a triangular cone-shaped composite insulating cross arm comprises a connecting tower fitting, a connecting wire fitting, an insulating core body and an umbrella skirt;
the tower connecting hardware fitting is used for installing the whole insulating cross arm on a telegraph pole tower, and a first triangular cavity which is communicated left and right is arranged in the tower connecting hardware fitting;
the connecting wire fitting is used for fixing the electric power wire, a second triangular cavity with one end open is formed in the connecting wire fitting, and a clamping block is arranged on the inner wall of the connecting wire fitting;
the insulation core body is cast into the first triangular cavity and the second triangular cavity to be integrally formed;
the umbrella skirts are pressed and connected to the periphery of the insulating core at intervals.
Preferably, the wire clamp comprises a wire supporting bottom plate, a wire hooping top plate and bolts, wherein the wire supporting bottom plate is connected to the wire clamp, the wire hooping top plate is positioned on the wire supporting bottom plate, an arc-shaped groove is arranged between the wire supporting bottom plate and the wire hooping top plate, and the arc-shaped groove is used for clamping a power wire; the wire supporting bottom plate and the wire hooping top plate are respectively provided with a first through hole, the bolts are fixedly connected with the wire supporting bottom plate and the wire hooping top plate through the first through holes, so that the electric power wires are convenient to fix, cannot swing, and the safety distance between the electric power wires is guaranteed.
Preferably, the bottom end of the wire supporting bottom plate is connected with a hanging ring, the hanging ring is used for placing a pulley, and the pulley is used for adjusting tightness of the power wire.
Preferably, the tower connecting hardware fitting is provided with a circular arc-shaped bulge, and the circular arc-shaped bulge is provided with an insulation shield, so that the triangular cone-shaped composite insulation cross arm can be tightly connected with a telegraph pole tower, and current in a power wire is effectively prevented from returning to the ground.
Preferably, the tower connecting fitting is further provided with a second through hole, and the U-shaped anchor ear penetrates through the second through hole to install the triangular cone-shaped composite insulating cross arm on the telegraph pole tower.
Preferably, the clamping block is an inverted triangle clamping block and is positioned on the inner wall of the upper end of the connecting wire fitting, so that the insulating core body which is formed by pouring is clamped conveniently, and sliding between the insulating core body and the connecting wire fitting is prevented.
Preferably, the insulating core body adopts epoxy resin as a matrix and E glass fiber as a reinforcing material, so that the strength of the insulating core body is improved.
Preferably, the material of the connecting tower fitting and the material of the connecting wire fitting are 6-series aluminum alloy, so that the corrosion resistance and the oxidation resistance of the connecting tower fitting and the connecting wire fitting are improved, and the cost is saved.
Preferably, the umbrella skirt is made of high-temperature vulcanized silicone rubber, secondary insulation is added on the basis of an insulation core, and the insulation level of the triangular cone-shaped composite insulation cross arm is increased.
The insulating core body is directly cast in the connecting tower fitting and the connecting wire fitting, so that the insulating core body is tightly and reliably connected with the connecting tower fitting and the connecting wire fitting, and the insulating core body is clamped by the inverted triangular clamping blocks arranged on the inner wall of the connecting wire fitting, so that the insulating core body cannot slide relative to the connecting wire fitting and the connecting tower fitting.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
It can be seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as its practical advantages.
Drawings
Fig. 1 is a front view of a delta-cone composite insulating crossarm.
Fig. 2 is a top view of a triangular-cone-shaped composite insulating crossarm.
Fig. 3 is a cross-sectional view of the tower attachment fitting.
Fig. 4 is a diagram showing the structure of the link fitting.
Fig. 5 is a schematic structural diagram of the first embodiment.
Fig. 6 is a schematic structural diagram of the second embodiment.
The wire tower is characterized in that the wire tower is provided with a first triangular cavity 1, a circular arc-shaped bulge 12, a second through hole 13, a wire fitting 21, a clamping block 22, a wire supporting bottom plate 221, a first through hole 23, a hanging ring 24, a wire hooping top plate 25, an insulating core body 3, an umbrella skirt 4 and a wire pole tower 5.
Detailed Description
The present invention will be described in detail below by way of specific examples with reference to the accompanying drawings, the following examples being illustrative of the present invention and the present invention is not limited to the following embodiments.
As shown in fig. 1, 2, 3 and 4, the invention provides a triangular cone-shaped composite insulating cross arm, which comprises a connecting tower fitting 1, a connecting wire fitting 2, an insulating core body 3 and an umbrella skirt 4; the inside of the connecting tower fitting 1 is provided with a first triangular cavity 11 which is communicated left and right, the inside of the connecting tower fitting 2 is provided with a second triangular cavity with one end open, and the insulating core 3 is cast into an integral molding in the first triangular cavity 11 and the second triangular cavity; the insulating core body 3 adopts epoxy resin as a matrix and E glass fiber as a reinforcing material, so that the strength of the insulating core body 3 is increased; the material of the connecting tower hardware fitting 1 and the material of the connecting wire hardware fitting 2 are 6-series aluminum alloy, so that the corrosion resistance and the oxidation resistance of the connecting tower hardware fitting 1 and the connecting wire hardware fitting 2 are improved, and the cost is saved.
The tower connecting hardware fitting 1 is used for installing the whole insulating cross arm on the electric pole tower 5; the arc-shaped bulge 12 is arranged on the tower connecting fitting 1, and an insulation shield is arranged on the arc-shaped bulge 12, so that the triangular cone-shaped composite insulation cross arm can be tightly connected with the telegraph pole tower 5, and the current in the electric power wire is effectively prevented from returning to the ground; the tower connecting fitting 1 is further provided with a second through hole 13, and the U-shaped anchor ear penetrates through the second through hole 13 to install the triangular cone-shaped composite insulating cross arm on the telegraph pole tower 5.
The connecting wire fitting 2 is used for fixing a power wire, and a clamping block 21 is arranged on the inner wall of the connecting wire fitting 2; the clamping block 21 is an inverted triangle clamping block and is positioned on the inner wall of the upper end of the connecting wire fitting 2, so that the insulating core body 3 which is formed by pouring is clamped conveniently, and sliding between the insulating core body 3 and the connecting wire fitting 2 is prevented; the wire clamp is arranged on the wire clamp 2 and comprises a wire supporting bottom plate 22, a wire hooping top plate 25 and bolts, the wire supporting bottom plate 22 is connected to the wire clamp 2, the wire hooping top plate is positioned on the wire supporting bottom plate 22, an arc-shaped groove 221 is arranged between the wire supporting bottom plate 22 and the wire hooping top plate 25, and the arc-shaped groove 221 is used for clamping a power wire; the wire supporting bottom plate 22 and the wire hooping top plate 25 are respectively provided with a first through hole 23, and the bolts are used for fixedly connecting the wire supporting bottom plate 22 and the wire hooping top plate 25 through the first through holes 23, so that the electric power wires can be conveniently fixed, cannot swing, and the safety distance between the electric power wires is ensured; the bottom of the wire supporting bottom plate 22 is connected with a hanging ring 24, and the hanging ring 24 is used for placing a pulley, and the pulley is used for adjusting tightness of the power wire.
The umbrella skirt 4 is pressed and connected to the periphery of the insulating core body 3 at intervals; the umbrella skirt 4 is made of high-temperature vulcanized silicone rubber, secondary insulation is added on the basis of the insulation core body 3, and the insulation level of the triangular cone-shaped composite insulation cross arm is increased.
Embodiment one:
as shown in fig. 5, the tower connecting fitting 1 and the connecting fitting 2 are provided with one, and the insulating core 3 is cast and formed in the tower connecting fitting 1 and the connecting fitting 2; the tower connecting fitting 1 installs the triangular cone-shaped composite insulating cross arm on the telegraph pole tower 5 through the U-shaped anchor ear and the second through hole 13; after the triangular cone-shaped composite insulating cross arm is erected, a power constructor installs a pulley which is convenient for adjusting the tightness of a power wire on a hanging ring 24 of the installed triangular cone-shaped composite insulating cross arm; the electric power constructor places the electric power wire on the pulley and pays out and inlet wire, after the adjustment of electric power wire elasticity between each wire pole tower 5 is accomplished, remove the electric power wire to arc groove 221 in to will hold in the palm line bottom plate 22 and hoop line roof 25 fastening connection through the bolt, fix the electric power wire in the fastener, prevent that the electric power wire from can't satisfying safe distance because of the swing.
Embodiment two:
as shown in fig. 6, one connecting tower hardware fitting 1 is provided, two connecting wire hardware fittings 2 are provided, the two connecting wire hardware fittings 2 are symmetrically arranged about the connecting tower hardware fitting 1, and the insulating core 3 is cast and molded in the connecting tower hardware fitting 1 and the connecting wire hardware fitting 2; the tower connecting fitting 1 installs the triangular cone-shaped composite insulating cross arm on the telegraph pole tower 5 through the U-shaped anchor ear and the second through hole 13; after the triangular cone-shaped composite insulating cross arm is erected, a power constructor installs a pulley which is convenient for adjusting the tightness of a power wire on a hanging ring 24 of the installed triangular cone-shaped composite insulating cross arm; the electric power constructor places the electric power wire on the pulley and pays out and inlet wire, after the adjustment of electric power wire elasticity between each wire pole tower 5 is accomplished, remove the electric power wire to arc groove 221 in to will hold in the palm line bottom plate 22 and hoop line roof 25 fastening connection through the bolt, fix the electric power wire in the fastener, prevent that the electric power wire from can't satisfying safe distance because of the swing.
The foregoing disclosure is merely illustrative of the preferred embodiments of the invention and the invention is not limited thereto, since modifications and variations may be made by those skilled in the art without departing from the principles of the invention.
Claims (7)
1. The triangular cone-shaped composite insulating cross arm is characterized by comprising a connecting tower fitting, a connecting wire fitting, an insulating core body and an umbrella skirt;
the tower connecting hardware fitting is used for installing the whole insulating cross arm on a telegraph pole tower, and a first triangular cavity which is communicated left and right is arranged in the tower connecting hardware fitting;
the connecting wire fitting is used for fixing the electric power wire, a second triangular cavity with one end open is formed in the connecting wire fitting, and a clamping block is arranged on the inner wall of the connecting wire fitting;
the insulation core body is cast into the first triangular cavity and the second triangular cavity to be integrally formed;
the umbrella skirts are pressed and connected to the periphery of the insulating core at intervals;
the wire clamp comprises a wire supporting bottom plate, a wire hooping top plate and bolts, wherein the wire supporting bottom plate is connected to the wire connecting fitting, the wire hooping top plate is positioned on the wire supporting bottom plate, an arc-shaped groove is arranged between the wire supporting bottom plate and the wire hooping top plate, and the arc-shaped groove is used for clamping a power wire; the wire supporting bottom plate and the wire hooping top plate are respectively provided with a first through hole, and the bolts are fastened and connected with the wire supporting bottom plate and the wire hooping top plate through the first through holes;
the tower connecting hardware fitting is provided with a circular arc-shaped bulge, and the circular arc-shaped bulge is provided with an insulation shield.
2. The triangular cone-shaped composite insulating cross arm according to claim 1, wherein the bottom end of the wire supporting bottom plate is connected with a hanging ring, the hanging ring is used for placing a pulley, and the pulley is used for adjusting tightness of a power wire.
3. The delta-cone shaped composite insulating cross arm of claim 1, wherein the tower connecting fitting is further provided with a second through hole.
4. The triangular-cone-shaped composite insulating cross arm according to claim 1, wherein the clamping block is an inverted triangular clamping block and is located on the inner wall of the upper end of the connecting wire fitting.
5. The delta-cone composite insulating crossarm of claim 1, wherein the insulating core uses epoxy resin as a matrix and E-glass fiber as a reinforcing material.
6. The delta-conical composite insulating crossarm of claim 1, wherein,
the material of the connecting tower hardware fitting and the material of the connecting wire hardware fitting are both 6 series aluminum alloy.
7. The triangular cone-shaped composite insulating cross arm according to claim 1, wherein the umbrella skirt is made of high-temperature vulcanized silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779805.0A CN113445810B (en) | 2021-07-09 | 2021-07-09 | Triangular cone composite insulating cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110779805.0A CN113445810B (en) | 2021-07-09 | 2021-07-09 | Triangular cone composite insulating cross arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113445810A CN113445810A (en) | 2021-09-28 |
| CN113445810B true CN113445810B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110779805.0A Active CN113445810B (en) | 2021-07-09 | 2021-07-09 | Triangular cone composite insulating cross arm |
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| Country | Link |
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| CN (1) | CN113445810B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320797B (en) * | 2016-08-25 | 2019-01-25 | 陕西泰普瑞电工技术有限公司 | A kind of high voltage hard full skirt composite insulation cross arm and its preparation facilities and method |
| CN208024055U (en) * | 2018-03-12 | 2018-10-30 | 江苏神马电力股份有限公司 | A kind of cross-arm wire fixture and cross-arm |
| CN108923366A (en) * | 2018-08-23 | 2018-11-30 | 国家电网有限公司 | The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line |
| CN211578491U (en) * | 2019-10-11 | 2020-09-25 | 中国电力科学研究院有限公司 | Hard composite insulating cross arm |
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- 2021-07-09 CN CN202110779805.0A patent/CN113445810B/en active Active
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| Publication number | Publication date |
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| CN113445810A (en) | 2021-09-28 |
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