CN111162496A - Single-bundle conductor strain backup complete device - Google Patents
Single-bundle conductor strain backup complete device Download PDFInfo
- Publication number
- CN111162496A CN111162496A CN201811324970.1A CN201811324970A CN111162496A CN 111162496 A CN111162496 A CN 111162496A CN 201811324970 A CN201811324970 A CN 201811324970A CN 111162496 A CN111162496 A CN 111162496A
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- Prior art keywords
- wire
- backup
- strain
- pull rod
- clamp
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention relates to a single-bundle conductor strain backup complete device which comprises a backup strain device, an extension pull rod, a protective line, a supporting wire clamp, a wire pulling device, a U-shaped ring, a tensioning device, a parallel hanging plate and a connecting plate, wherein the wedge-shaped backup strain device is arranged, so that the wire is high in holding force and convenient to install, and the wire is pulled more and more tightly in the using process; the outer surface of the backup strain device is designed into a circular arc structure, so that stress concentration is effectively prevented, and the structure is reliable; due to the arrangement of the extension pull rod, the backup tension hanging plate and the wire pulling device form a rigid connecting corner, so that the whole device is more reliably connected; because the supporting wire clamp is adopted, the galloping between the complete backup device and the wire is avoided, and the service life of the wire is greatly prolonged; the whole device can share the tensile force on the original compression type strain, so that the service life of the original compression strain is prolonged; because of reasonable structure, the utility model has great practical and popularization value.
Description
Technical Field
The invention relates to a safety protection device for a power transmission and distribution line in the power industry, in particular to a single-bundle conductor strain backup complete device.
Background
Through searching related patent documents, no single-bundle conductor strain backup complete device with the same structure as the single-bundle conductor strain backup complete device has been searched at present. The compression type strain clamp is adopted on one side of the existing transmission line lead, but the compression type strain clamp is influenced by construction conditions and constructor technology in the actual construction process, the quality of a compression joint lead is difficult to control, the monitoring cannot be carried out on the site through a monitoring means, but along with the lengthening of application time, the occurrence of the phenomenon of fracture of the compression joint part of the clamp and serious electric shock accidents are easy to cause, the existing method for preventing the fracture of the lead is realized by winding a preformed armor rod at the connection part, so that the weight of the line is increased, the damage is caused to a tower, and therefore, a set of compression type strain prevention device is needed to be designed, after the strain is failed, the safe and reliable operation of a power grid can be ensured through the backup device, the accident caused by the falling of the lead is avoided.
Disclosure of Invention
The invention aims to provide a single-bundle conductor strain backup complete device which can effectively pull a conductor, prevent the conductor from falling, share the tensile force of an original strain clamp and prolong the service life of the original strain clamp under the condition that the original line structure is unchanged and the crimped conductor part of the original compression type strain clamp is broken.
In order to achieve the purpose, the invention adopts the following technical scheme:
the strain backup complete device for the single-bundle conductor comprises a backup strain device, an extension pull rod, a protective line, a supporting wire clamp, a wire pulling device, a U-shaped ring, a tensioning device, a parallel hanging plate and a connecting plate, wherein one end of the extension pull rod is connected with the hanging plate of the backup strain device, and the other end of the extension pull rod is connected with one end of the U-shaped ring wire pulling device; the other end of the wire pulling device is connected with one end of the tensioning device through a U-shaped ring; the other end of the tensioning device is connected with the connecting plate through the parallel hanging plate; the surface of the connection part of the backup strain device and the wire, the connection part of the support wire clamp and the wire, and the connection part of the stay wire device and the support wire clamp is wrapped with a protection wire; the backup strain clamp is a strain clamp with a wedge-shaped structure; the line protecting strip is preformed armor rods; the supporting wire clamp is used for separating the conducting wire from the backup complete device, so that the conducting wire and the backup complete device are prevented from waving; the connecting plate is a connecting plate body with a fan-shaped structure.
The backup strain device consists of a shell, an inner wedge block and a hanging plate, wherein one end of the inner wedge block is arranged in the shell, and connecting lug plates are symmetrically arranged on two side surfaces of the other end of the inner wedge block; trunnions connected with the hanging plates are symmetrically arranged on two sides of the shell; the hanging plate is arranged on the trunnion, limited by the cotter pin and can rotate around the trunnion; the outer shell is formed by fastening two identical structural bodies with wedge groove shapes through bolts, and a wedge-shaped cavity matched with the inner wedge block is formed in the shell; the inner wedge block is formed by combining two symmetrical wedge bodies, and a wire groove matched with the external shape of the wire is formed between the combining surfaces; the outer surface of the shell and the outer part of the inner wedge block are designed into a structure with arc surfaces, so that the phenomena of stress concentration and point discharge are effectively prevented.
The supporting wire clamp is composed of two symmetrical metal plate bodies which are provided with semicircular wire drawing grooves, semicircular wire guiding grooves and two clamping bolt connecting holes.
The wire drawing device consists of a steel strand and steel anchors, wherein the steel anchors are pressed at two ends of the steel strand.
The tensioning device consists of a body, a threaded pull rod, a pin shaft and a closed pin, wherein the body is a metal frame shaped like a Chinese character 'hui', and threaded holes matched with the threaded pull rod are formed in two symmetrical edges of the body; one end of the threaded pull rod is provided with a circular ring connecting buckle, and the other end of the threaded pull rod is provided with a pin shaft hole vertical to the axis; the pin shaft is arranged in a pin shaft hole at the end part of the threaded pull rod and is locked by a closed pin.
When in use, a lead in front of an original compression type strain outlet is wrapped with a protection line, then a backup strain is installed on the lead wrapped with the protection line, then the lead at the position needing to be provided with a supporting wire clamp is wrapped with the protection line, the extension pull rod is connected with the hanging plate on the backup strain device and supported by the supporting wire clamp to ensure that the hanging plate is not contacted with the lead, a wire pulling device with proper length is selected, the backup strain device, the extension pull rod, the wire pulling device and the tensioning device are connected in series with the connecting plate installed on a tower by adopting a U-shaped ring and a parallel hanging plate, the wire pulling device is effectively separated from the lead by adopting the supporting wire clamp, the supporting wire clamp part on the wire pulling device is wrapped with the protection line, and finally the tensioning device is adjusted to ensure that the whole backup device bears the stress, thus the tension of the original compression type strain can be shared, and the service life of, meanwhile, when the original compression type strain compression joint part is broken, the strain backup complete device can effectively pull the lead, effectively avoids the phenomenon that the lead is broken and falls off, and wins precious time for rush repair.
The invention has the advantages that: the wedge-shaped backup strain resisting device is arranged, so that the wire is high in holding power and convenient to install, and the wire is more and more tensioned in the using process; the outer surface of the backup strain device is designed into a circular arc structure, so that stress concentration is effectively prevented, and the structure is reliable; due to the arrangement of the extension pull rod, the backup tension hanging plate and the wire pulling device form a rigid connecting corner, so that the whole device is more reliably connected; the protection line is a preformed armor rod, so that the outer surface of the lead is effectively protected, and the installation is convenient; because the supporting wire clamp is adopted, the galloping between the complete backup device and the wire is avoided, and the service life of the wire is greatly prolonged; the tension device is arranged, so that the tension can be conveniently adjusted; the whole device can share the tensile force on the original compression type strain, so that the service life of the original compression strain is prolonged; because of reasonable structure and convenient use, the utility model has great practical and popularization value.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a single-bundled conductor strain backup complete device of the present invention;
fig. 2 is a schematic structural diagram of a backup strain device of the single-bundle conductor strain backup complete device of the invention;
FIG. 3 is a schematic structural diagram of an extension rod of the complete set of single-bundle conductor strain backup device of the invention;
FIG. 4 is a schematic structural diagram of a supporting wire clamp of the complete single-bundle conductor strain backup device of the invention;
FIG. 5 is a schematic structural view of a wire pulling device of the complete set of single-bundle conductor strain backup device;
FIG. 6 is a schematic structural view of a U-shaped ring of the complete set of single-bundle conductor strain backup device of the present invention;
fig. 7 is a schematic structural diagram of the tension device of the single-bundle conductor strain backup complete device of the invention;
FIG. 8 is a schematic structural view of a parallel hanging plate of the complete set of single-bundle conductor strain backup device of the invention;
fig. 9 is a schematic structural diagram of a connecting plate of the single-bundled conductor strain backup complete device of the invention.
Detailed Description
Referring to attached figures 1, 2, 3, 4, 5, 6, 7, 8 and 9, the single bundle conductor strain backup complete device of the invention comprises a backup strain device 1, an extension pull rod 2, a protective wire 3, a support wire clamp 4, a wire pulling device 5, a U-shaped ring 6, a tensioning device 7, a parallel hanging plate 8 and a connecting plate 9, wherein one end of the extension pull rod 2 is connected with a hanging plate 13 of the backup strain device 1, and the other end is connected with one end of the wire pulling device 5 through the U-shaped ring 6; the other end of the wire pulling device 5 is connected with one end of a tensioning device 7 through a U-shaped ring 6; the other end of the tension device 7 is connected with a connecting plate 9 through a parallel hanging plate 8; the surface of the connecting part of the backup strain device 1 and the wire, the supporting wire clamp 4 and the wire, and the connecting part of the wire pulling device 5 and the supporting wire clamp 4 is wrapped with a protecting wire 3; the backup strain device 1 is a strain clamp with a wedge-shaped structure; the wire protecting strip 3 is a preformed armor rod; the supporting wire clamp 4 is used for separating the conducting wire from the backup complete device and avoiding the waving between the conducting wire and the backup complete device; the connecting plate 9 is a connecting plate body with a sector structure; the backup strain device 1 consists of a shell 11, an inner wedge block 12 and a hanging plate 13, wherein one end of the inner wedge block 12 is arranged in the shell 11, and connecting lug plates are symmetrically arranged on two side surfaces of the other end of the inner wedge block 12; trunnions connected with the hanging plates 13 are symmetrically arranged on two sides of the shell 11; the hanging plate 13 is arranged on the trunnion, limited by the cotter pin and can rotate around the trunnion; the outer shell 11 is formed by fastening two identical structural bodies with wedge groove shapes through bolts, and a wedge-shaped cavity matched with the inner wedge block 12 is formed in the shell; the inner wedge block 12 is formed by combining two symmetrical wedge bodies, and a wire groove matched with the external shape of a wire is formed between the combining surfaces; the outer surface of the shell 11 and the outer part of the inner wedge block 12 are designed into a structure of an arc surface, so that the phenomena of stress concentration and point discharge are effectively prevented; the supporting wire clamp 4 is composed of two symmetrical metal plate bodies which are provided with a semicircular wire drawing groove A, a semicircular wire guiding groove B and two clamping bolt connecting holes C; the wire drawing device 5 consists of a steel strand 51 and a steel anchor 52, wherein the steel anchor 52 is pressed at two ends of the steel strand 51; the tensioning device 7 consists of a body 71, a threaded pull rod 72, a pin shaft 73 and a closed pin 74, wherein the body 71 is a metal frame shaped like a Chinese character 'hui', and threaded holes matched with the threaded pull rod 72 are formed in two symmetrical edges; one end of the threaded pull rod 72 is a circular ring connecting buckle, and the other end is provided with a pin shaft hole vertical to the axis; the pin 73 is mounted in a pin hole in the end of the threaded pull rod 72 and is locked by a closed pin 74.
Claims (5)
1. Single split conductor strain backup integrated equipment, it by backup strain insulator device (1), extension pull rod (2), protect line (3), support fastener (4), draw off mechanism (5), U type ring (6), overspeed device tensioner (7), parallel link plate (8), even board (9) constitute its characterized in that: one end of the extension pull rod (2) is connected with a hanging plate (13) of the backup strain device (1), and the other end of the extension pull rod is connected with one end of a wire pulling device (5) through a U-shaped ring (6); the other end of the wire drawing device (5) is connected with one end of the tensioning device (7) through a U-shaped ring (6); the other end of the tension device (7) is connected with a connecting plate (9) through a parallel hanging plate (8); the surface of the connecting part of the backup strain device (1) and the wire, the supporting wire clamp (4) and the wire, and the connecting part of the wire pulling device (5) and the supporting wire clamp (4) is wrapped with a protecting wire (3); the backup strain clamp device (1) is a strain clamp with a wedge-shaped structure; the line protecting strip (3) is preformed armor rods; the supporting wire clamp (4) is used for separating the conducting wire from the backup complete device and avoiding the waving between the conducting wire and the backup complete device; the connecting plate (9) is a connecting plate body with a sector structure.
2. The single-split conductor strain backup kit of claim 1, wherein: the backup strain device (1) consists of a shell (11), an inner wedge block (12) and a hanging plate (13), wherein one end of the inner wedge block (12) is arranged in the shell (11), and connecting lug plates are symmetrically arranged on two side surfaces of the other end of the inner wedge block (12); trunnions connected with the hanging plates (13) are symmetrically arranged on two sides of the shell (11); the hanging plate (13) is arranged on the trunnion, limited by the cotter pin and can rotate around the trunnion; the outer shell (11) is formed by fastening two identical structural bodies with wedge groove shapes through bolts, and a wedge-shaped cavity matched with the inner wedge block (12) is formed in the shell; the inner wedge block (12) is formed by combining two symmetrical wedge bodies, and a wire groove matched with the external shape of a wire is formed between the combining surfaces; the outer surface of the shell (11) and the outer part of the inner wedge block (12) are designed into a structure of an arc surface, so that the phenomena of stress concentration and point discharge are effectively prevented.
3. The single-split conductor strain backup kit of claim 1, wherein: the supporting wire clamp (4) is composed of two symmetrical metal plate bodies provided with a semicircular wire drawing groove (A), a semicircular wire guide groove (B) and two clamping bolt connecting holes (C).
4. The single-split conductor strain backup kit of claim 1, wherein: the wire drawing device (5) consists of a steel strand (51) and a steel anchor (52), wherein the steel anchor (52) is pressed at two ends of the steel strand (51).
5. The single-split conductor strain backup kit of claim 1, wherein: the tensioning device (7) consists of a body (71), a threaded pull rod (72), a pin shaft (73) and a closed pin (74), wherein the body (71) is a metal frame shaped like a Chinese character 'hui', and threaded holes matched with the threaded pull rod (72) are formed in two symmetrical edges of the body; one end of the threaded pull rod (72) is a circular ring connecting buckle, and the other end is provided with a pin shaft hole vertical to the axis; the pin (73) is mounted in a pin hole at the end of the threaded pull rod (72) and locked by a closed pin (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324970.1A CN111162496A (en) | 2018-11-08 | 2018-11-08 | Single-bundle conductor strain backup complete device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324970.1A CN111162496A (en) | 2018-11-08 | 2018-11-08 | Single-bundle conductor strain backup complete device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111162496A true CN111162496A (en) | 2020-05-15 |
Family
ID=70554853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324970.1A Pending CN111162496A (en) | 2018-11-08 | 2018-11-08 | Single-bundle conductor strain backup complete device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111162496A (en) |
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2018
- 2018-11-08 CN CN201811324970.1A patent/CN111162496A/en active Pending
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