CN113241699B - Wind deflection prevention device for jumper insulator of tension tower of power transmission line - Google Patents
Wind deflection prevention device for jumper insulator of tension tower of power transmission line Download PDFInfo
- Publication number
- CN113241699B CN113241699B CN202110592787.5A CN202110592787A CN113241699B CN 113241699 B CN113241699 B CN 113241699B CN 202110592787 A CN202110592787 A CN 202110592787A CN 113241699 B CN113241699 B CN 113241699B
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- bowl head
- transmission line
- hanging tool
- power transmission
- bowl
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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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- 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
- H02G7/05—Suspension arrangements or devices for electric cables or lines
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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
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line, which comprises a bowl head and a supporting tube, wherein a club is arranged in the bowl head in a matched manner, the bowl head is of a cuboid structure, one side of the bowl head is provided with a limiting hole, one end of a limiting pin penetrates through the limiting hole to extend into the bowl head and is positioned at the outer side of the club, a hanging tool is arranged below the bowl head, the bottom ends of the hanging tool are opened towards two opposite outer sides by a preset distance, the supporting tube is transversely and fixedly connected to the two bottom ends of the hanging tool, fixing wire clamps are respectively arranged at the two ends of the supporting tube, two clamping pieces are oppositely arranged at the lower parts of the fixing wire clamps, a wire guide hole is formed by matching cables at the middle parts of the two clamping pieces, and the lower parts of the two clamping pieces are fixedly connected through bolts. The invention solves the problems that the existing power transmission line is easy to be influenced by external force and has larger wind deflection, ensures that the safety distance between the jumper and the adjacent tower side lightning conductor is sufficient, avoids the discharge phenomenon, the line grounding accident and the large-area power failure phenomenon.
Description
Technical Field
The invention belongs to the technical field of high-voltage transmission, and particularly relates to a wind deflection prevention device for a jumper insulator of a tension tower of a transmission line.
Background
The jumper wire is a wire device of a wire strain clamp of wires at two sides of the strain tower, and can enable a charged wire to keep a sufficient electric safety distance with a conductive part of the tower. At present, on a power transmission line, a bowl head is arranged below an insulator string, and a groove buckle hanging support tube is arranged at the lower part of the bowl head and used for hanging a jumper wire. This approach has several problems:
1) In order to adapt to the use of various voltage sizes, the bowl heads are connected by the bats, but the movable space of the bats in the bowl heads is large, the bats are easy to shake when in windage, so that the lower support tube and the jumper wire connected with the support tube shake violently, namely the wind deflection is large, the safety distance between the jumper wire and the adjacent tower side lightning conductor is insufficient, a discharging phenomenon occurs, a line grounding accident is easy to occur, and a large-area power failure phenomenon occurs in serious cases;
2) The lower part of the bowl head is connected with the supporting tube through the groove buckle, and the single-hanging-point ball nest connecting structure has the problem of poor overall stability, so that the occurrence probability of windage deviation and the windage deviation amplitude of the jumper wire are increased;
3) At present, a hollow circle is adopted as a supporting tube, water is easily injected into the supporting tube to oxidize and rust, and in a traditional mode, 4-6 wire clamps are required to be connected to the supporting tube through bolts for fixing jumper wires, so that the installation is troublesome, the later maintenance and overhaul are inconvenient, and equipment elements are scattered and inconvenient to carry and operate.
Disclosure of Invention
The invention aims to provide a wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line, which solves the problems that the existing power transmission line is easy to be influenced by external force and has larger wind deflection, ensures that the safety distance between the jumper and an adjacent tower side lightning conductor is sufficient, avoids the occurrence of discharge phenomenon, occurrence of line collision accidents and occurrence of large-area power failure phenomenon.
The technical scheme includes that the wind deflection prevention device for the jumper insulator of the tension tower of the power transmission line comprises a bowl head and a supporting tube, wherein a bat is arranged in the bowl head in a matched mode, the bowl head is of a cuboid structure, one side of the bowl head is provided with a limiting hole, one end of a limiting pin penetrates through the limiting hole to extend into the bowl head and is positioned at the outer side of the bat, a hanging tool is arranged below the bowl head, the bottom ends of the hanging tool are opened to two opposite outer sides for a preset distance, the supporting tube is transversely and fixedly connected to the two bottom ends of the hanging tool, and two ends of the supporting tube are respectively provided with a fixing wire clamp.
Furthermore, the limiting pin is an R pin, the end of the limiting pin head is positioned outside the bowl head, the tail end of the limiting pin head stretches into the bowl head, the two pin rods are respectively positioned at two sides of the ball bat, and the longer pin rod is positioned at the outer side of the ball bat, and the end part of the longer pin rod is in abutting connection with the inner wall surface of the bowl head.
Furthermore, the longitudinal section of the hanger is trapezoid, and the distance between two sides of the bottom end is 5-8cm.
Furthermore, the hanging tool adopts a hollow structure, and the top end and the bowl head are integrally formed.
Further, the support tube is welded with the two bottom ends of the hanger, and the bowl head and the hanger are positioned on the central axis of the support tube.
Further, the top end of the fixed wire clamp is integrally formed with the supporting tube, two clamping pieces are oppositely arranged at the lower part of the fixed wire clamp, the middle parts of the two clamping pieces are matched with the cable to form a wire guide, and the lower parts of the two clamping pieces are fixedly connected through bolts.
Further, a movable wire clamp is further arranged on the supporting tube, the upper portion of the movable wire clamp is connected with the supporting tube in a sliding mode, and the lower portion of the movable wire clamp is in a circular ring shape with the size matched with that of the electric wire.
Further, the support tube is of a flat structure and is made of aluminum alloy.
Compared with the prior art, the invention has the beneficial effects that:
1) The bowl head is of a cuboid structure, the limiting holes are formed in the side face of the bowl head, the limiting pins are inserted into the bowl head through the limiting holes to fix the ball bat, the shaking condition and shaking amplitude of the ball bat are reduced, meanwhile, the traditional single hanging point connection mode of the groove buckle is changed into the connection mode of the hanging tool under the bowl head, the bottom end of the hanging tool is opened to two outer sides, the connection point with the supporting tube is increased, the connection stability between the supporting tube and the hanging tool is increased, the supporting tube is prevented from being greatly winded due to shaking caused by the influence of the environment, the safe distance between the jumper and an adjacent tower side lightning conductor is ensured, the discharge phenomenon and the occurrence of a line collision are avoided, and the occurrence of a large-area power failure accident is prevented;
2) The limiting pin adopts the R pin, so that the ball bat below the insulator string is automatically locked, the ball bat is prevented from shaking severely under the influence of natural environment, the R pin is simple in structure and convenient to use, the bowl head is ensured to be suitable for various types of insulating strings, and the applicability is strong;
3) The hanger adopts a trapezoid structure, the distance between the two bottom ends is 5-8cm, the connection line between the two bottom ends and the top end is ensured to form a stable triangle, and the two bottom ends are connected with the supporting tube, so that compared with the traditional single hanging point, the stability is greatly improved;
4) The hanger adopts a hollowed-out structure, reduces the weight of the hanger, is convenient to operate, is integrally formed with the bowl head, is convenient and quick to install, saves trouble and labor, and does not influence the installation quality by the technical level of installation personnel;
5) The support tube is welded with the hanger, the hanger and the bowl head are always positioned on the central axis of the support tube, the integral balance of the structure is ensured, the shaking risk is reduced, and the installation procedure is reduced;
6) The fixed wire clamps are integrally formed at the two ends of the support tube, so that the device has the advantages of economy and applicability, reduces manual connection points, is convenient to install and overhaul, and prevents the connection part of the fixed wire clamps and the support tube from being corroded and loosened;
7) The movable wire clamp is connected to the support tube in a sliding manner and is used for supporting a circuit of the middle section, so that sagging caused by expansion and contraction of the cable after a long time is prevented, and the safety is improved;
8) The stay tube is flat structure, avoids the water injection to take place the corrosion to increase the welding area of stay tube and hanger, guarantee to connect the firm nature, adopt aluminum alloy material to make, make the stay tube durable, be difficult for oxidation, corrosion.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a limiting pin according to the present invention;
FIG. 3 is a side view of a fixing clip of the present invention;
fig. 4 is a schematic diagram of a movable wire clip according to the present invention.
The marks in the figure: 1. bowl head, 101, limiting hole, 102, limiting pin, 2, bat, 3, hanger, 4, stay tube, 401, fixed wire clamp, 4011, clamping piece, 4012, wire guide, 402, movable wire clamp.
Detailed Description
The invention will be further explained in relation to the drawings of the specification, so as to be better understood by those skilled in the art.
Referring to fig. 1-4, the wind deflection prevention device for the jumper insulator of the tension tower of the power transmission line provided by the invention comprises a bowl head 1, a hanger 3 and a supporting tube 4.
The bowl head 1 is of a cuboid structure, the ball bars 2 are arranged in the bowl head 1 in a matched mode, and the bowl head is suitable for insulator strings of various types. One side of the bowl head 1 is provided with a limiting hole 101, one end of a limiting pin 102 penetrates through the limiting hole 101 to extend into the bowl head 1 and is positioned outside the ball bat 2, so that the ball bat 2 is fixed, and the ball bat 2 is prevented from shaking severely due to the influence of external force.
In this example, the limiting pin 102 is an R pin, which has the advantages of simple structure and convenient use, and ensures that the bowl head 1 is suitable for insulation strings of various types, and has strong applicability. The head end of the limiting pin 102 is positioned outside the bowl head 1, the tail end of the limiting pin extends into the bowl head 1 through the limiting hole 101, two pin rods are respectively positioned on two sides of the club 2, wherein the longer pin rod is positioned outside the club 2, the end part of the longer pin rod is in abutting connection with the inner wall surface of the bowl head 1, the club 2 below the insulator string is automatically locked, and the club 2 is prevented from being severely rocked due to the influence of natural environment.
The hanging tool 3 is fixedly arranged below the bowl head 1, the bottom end of the hanging tool 3 is opened to two opposite outer sides by a preset distance and used for being connected with the supporting tube 4, a traditional single hanging point mode is replaced, a connecting point with the supporting tube 4 is increased, and structural stability is improved. Specifically, the longitudinal section of the hanger 3 is trapezoid, the distance between two sides of the bottom end is 5-8cm, the connection point between the two bottom ends of the hanger 3 and the supporting tube 4 is guaranteed to be in a stable triangle with the connection line between the top end of the hanger 3, the connection stability with the supporting tube 4 is greatly improved, and the operation reliability of a power system is guaranteed.
In order to lighten the self weight and facilitate the installation, the hanging tool 3 adopts a hollow structure, which is beneficial to the later maintenance and the inspection of whether the area has faults or not. And the top end of the hanging tool 3 and the bowl head 1 are integrally formed, so that the problem that the joint is easy to rust after the traditional welding or bolting is solved, the structure connection quality is improved, and the installation is convenient.
The support tube 4 is transversely and fixedly connected to two bottom ends of the hanger 3, and two ends of the support tube are respectively provided with a fixed wire clamp 401 for hanging the jumper on the support tube 4, so that the safety distance between the jumper and other conductive lines is ensured. Specifically, the support tube 4 is in a flat structure, is welded with two bottom ends of the hanger 3, and the bowl head 1 and the hanger 3 are positioned on the central axis of the support tube 4. The flat structure prevents the support tube 4 from being corroded by water injection, increases the welding area of the support tube 4 and the hanger 3, and ensures the connection firmness; the support tube 4 and the hanger 3 can be welded to reduce the installation procedure, so that the hanger 3 is always positioned on the central axis of the support tube 4, the integral balance of the structure is ensured, and the shaking risk is reduced. In addition, the support tube 4 is made of aluminum alloy materials, so that the support tube 4 is durable and is not easy to oxidize and rust.
In this example, fixed fastener 401 top and stay tube 4 integrated into one piece reduce the fastener and use and connect quantity, not only have economical and practical's advantage, reduce the manual connection point, be convenient for install and overhaul moreover, prevent that fixed fastener 401 and stay tube 4 junction corrosion from becoming flexible. Two clamping pieces 4011 are oppositely arranged at the lower part of the fixed wire clamp 401, the middle parts of the two clamping pieces are matched with the cable to form a wire guide 4012, the lower parts of the two clamping pieces 4011 are fixedly connected through bolts, and the jumper wire is fixed on the support tube 4.
The supporting tube 4 is also provided with a movable wire clamp 402 for supporting a line at the middle section, so that sagging caused by expansion and contraction of the cable after a long time is prevented, and the safety is improved; specifically, the upper portion of the movable wire clamp 402 is slidably connected with the support tube 4, and the lower portion of the movable wire clamp 402 is in a circular ring shape, and the circular ring is matched with the cable in size and is used for hanging the cable after passing through.
During the use, directly with club 2 fixed connection in insulator chain below, adjust bowl head 1 position and make the stay tube 4 of hanger 3 below be located the design direction, then adopt spacer pin 102 to insert bowl head 1 internal fixation club 2 through spacing hole 101, pass fixed fastener 401, movable fastener 402 and fixed fastener 401 on the stay tube 4 with the wire jumper again in proper order, screw up the bolt on the fixed fastener 401 and make the wire jumper fixed to adjust movable fastener 402 position, prevent the wire jumper sagging.
The invention has the advantages that: through improving bowl head 1 structure, utilize spacer pin 102 to insert bowl head 1 and realize automatic locking ball stick 2, avoid club 2 to receive external force to influence and rock the back that arouses the lower fitting and rock, and adopt triangle-shaped or trapezoidal structure's hanger 3, bottom welding stay tube 4, its tie point is triangle-shaped with hanger 3 top wiring, replace traditional single string of some ball nest connection modes, improve the connection stability of stay tube 4 and bowl head 1 greatly, and guarantee bowl head 1 and hanger 2 and be located stay tube 4 axis all the time, keep the structure balanced, further reduce the probability or the range of rocking of whole device structure emergence, prevent jumper wind and beat, effectively guarantee the safe distance of jumper wire and adjacent tower side lightning conductor, avoid appearing discharging phenomenon and emergence circuit ground connection, prevent the emergence of large tracts of land power failure phenomenon or electric cabinet damage accident. Meanwhile, the flat support tube 4 is adopted, rust after water injection and oxidization in the support tube 4 is avoided, the welding firmness with the hanging tool 3 is increased, and the fixing wire clamps 401 are integrally formed at two ends of the support tube 4, so that the support tube is convenient to set and maintain and overhaul in later period.
In addition, the bowl head 1 and the hanging tool 3 are integrally formed, the supporting tube 4 is welded with the hanging tool 3, the structural integrity of the device is strong, and the secondary assembly quality is prevented from being influenced by the technical level of an installer.
The above examples are only illustrative of the preferred embodiments of the present invention and do not limit the scope of the invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention as defined in the claims without departing from the design spirit and principle of the present invention.
Claims (5)
1. The utility model provides a transmission line strain insulator jumper insulator prevent wind and partially install, includes bowl head (1) and stay tube (4), the matching is equipped with club (2), its characterized in that in bowl head (1): the bowl is characterized in that the bowl head (1) is of a cuboid structure, one side of the bowl head (1) is provided with a limiting hole (101), one end of a limiting pin (102) penetrates through the limiting hole (101) to extend into the bowl head (1) and is located at the outer side of the ball bat (2), a hanging tool (3) is arranged below the bowl head (1), the longitudinal section of the hanging tool (3) is trapezoid, the distance between the two bottom ends is 5-8cm, the hanging tool (3) is of a hollow structure, the top end and the bowl head (1) are integrally formed, the bottom ends of the hanging tool (3) are opened to the two opposite outer sides by a preset distance, a supporting tube (4) is transversely fixedly connected to the two bottom ends of the hanging tool (3), and two ends of the supporting tube (4) are respectively provided with a fixed wire clamp (401); the support tube (4) is also provided with a movable wire clamp (402), the upper part of the movable wire clamp (402) is in sliding connection with the support tube (4), and the lower part of the movable wire clamp (402) is in a ring shape with the size matched with that of the cable.
2. The wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line according to claim 1, wherein: the limiting pin (102) is an R pin, the head end of the limiting pin (102) is located outside the bowl head (1), the tail end of the limiting pin extends into the bowl head (1) and two pin rods are located on two sides of the ball bat (2) respectively, and the longer pin rod is located on the outer side of the ball bat (2) and the end of the longer pin rod is in abutting connection with the inner wall surface of the bowl head (1).
3. The wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line according to claim 1, wherein: the support tube (4) is welded with the two bottom ends of the hanger (3), and the bowl head (1) and the hanger (3) are positioned on the central axis of the support tube (4).
4. The wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line according to claim 1, wherein: the top end of the fixed wire clamp (401) is integrally formed with the supporting tube (4), two clamping pieces (4011) are oppositely arranged at the lower part of the fixed wire clamp (401), a wire guide (4012) is formed by matching cables at the middle parts of the two clamping pieces (4011), and the lower parts of the two clamping pieces (4011) are fixedly connected through bolts.
5. The wind deflection prevention device for a jumper insulator of a tension tower of a power transmission line according to claim 1, wherein: the supporting tube (4) is of a flat structure and is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592787.5A CN113241699B (en) | 2021-05-28 | 2021-05-28 | Wind deflection prevention device for jumper insulator of tension tower of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592787.5A CN113241699B (en) | 2021-05-28 | 2021-05-28 | Wind deflection prevention device for jumper insulator of tension tower of power transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113241699A CN113241699A (en) | 2021-08-10 |
| CN113241699B true CN113241699B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110592787.5A Active CN113241699B (en) | 2021-05-28 | 2021-05-28 | Wind deflection prevention device for jumper insulator of tension tower of power transmission line |
Country Status (1)
| Country | Link |
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| CN (1) | CN113241699B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529236U (en) * | 1991-06-06 | 1993-04-16 | 株式会社フジクラ | Jumper equipment for overhead power lines |
| CN203026274U (en) * | 2012-12-27 | 2013-06-26 | 广州鑫源恒业电力线路器材股份有限公司 | Anti-drop type ball joint structure used for overhead power transmission line |
| CN204928032U (en) * | 2015-08-27 | 2015-12-30 | 遵义供电局 | Two strings of some strutting arrangement of drainage wire jumper |
| CN206712403U (en) * | 2017-04-25 | 2017-12-05 | 山西永强电气有限公司 | A kind of combined socket-clevis eye of anti-slip type |
| CN207490476U (en) * | 2017-11-30 | 2018-06-12 | 国网内蒙古东部电力有限公司检修分公司 | R pin locked devices |
| CN108736425A (en) * | 2018-06-04 | 2018-11-02 | 国家电网公司 | A kind of wind-deviation insulator simply connected is around the method and apparatus for jumping jumper string |
| CN210536254U (en) * | 2019-09-25 | 2020-05-15 | 江苏中宇电力器材有限公司 | Anti-drop socket hanging plate |
| CN211351634U (en) * | 2019-10-15 | 2020-08-25 | 贵州电网有限责任公司 | Middle phase drainage supporting device of power transmission line |
| CN212751742U (en) * | 2020-06-16 | 2021-03-19 | 国核电力规划设计研究院有限公司 | Jumper string |
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2021
- 2021-05-28 CN CN202110592787.5A patent/CN113241699B/en active Active
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| CN113241699A (en) | 2021-08-10 |
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