CN114944632A - Reinforced ground wire pre-twisted suspension clamp - Google Patents

Reinforced ground wire pre-twisted suspension clamp Download PDF

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Publication number
CN114944632A
CN114944632A CN202210602685.1A CN202210602685A CN114944632A CN 114944632 A CN114944632 A CN 114944632A CN 202210602685 A CN202210602685 A CN 202210602685A CN 114944632 A CN114944632 A CN 114944632A
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CN
China
Prior art keywords
reinforced
suspension
ground wire
hinge
hinge type
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CN202210602685.1A
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Chinese (zh)
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CN114944632B (en
Inventor
张博
李晓艳
刘泽辉
陶亚光
范武健
吕中宾
李清
陈作新
高剑凌
顾莉
庞锴
叶中飞
伍川
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Nanjing Power Fittings Design And Research Institute Co ltd
State Grid Corp of China SGCC
State Grid Henan Electric Power Co Ltd
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
Original Assignee
Nanjing Power Fittings Design And Research Institute Co ltd
State Grid Corp of China SGCC
State Grid Henan Electric Power Co Ltd
Electric Power Research Institute of State Grid Henan Electric Power Co Ltd
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Application filed by Nanjing Power Fittings Design And Research Institute Co ltd, State Grid Corp of China SGCC, State Grid Henan Electric Power Co Ltd, Electric Power Research Institute of State Grid Henan Electric Power Co Ltd filed Critical Nanjing Power Fittings Design And Research Institute Co ltd
Priority to CN202210602685.1A priority Critical patent/CN114944632B/en
Publication of CN114944632A publication Critical patent/CN114944632A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/05Suspension arrangements or devices for electric cables or lines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

The invention discloses a reinforced ground wire pre-twisted suspension clamp which comprises an inner layer pre-twisted wire, a ground wire, a rubber gasket, an outer layer pre-twisted wire, a reinforced hinge type suspension casing, a hinge pin, a U-shaped hoop and a fastening bolt, wherein the inner layer pre-twisted wire is arranged on the ground wire; the reinforced hinge type suspension sleeve is characterized in that the inner layer preformed armor wires are wound on the outer layer of the ground wire, the rubber gasket is clamped on the outer side of the inner layer preformed armor wires, the outer layer preformed armor wires are wound on the inner layer preformed armor wires and hoop the rubber gasket, the reinforced hinge type suspension sleeve shell is sleeved on the outer layer preformed armor wires, the hinge pin is installed at the lower end of the reinforced hinge type suspension sleeve shell, the U-shaped hoop is matched with the reinforced hinge type suspension sleeve shell, and the fastening bolt penetrates through a suspension hole in the upper portion of the U-shaped hoop and a suspension hole in the upper portion of the reinforced hinge type suspension sleeve shell. The invention adopts a structure combining the reinforced hinge type suspension casing and the steel U-shaped hoop, bears vertical damage load and unbalanced tension together, and has the advantages of high strength, good holding effect and convenient installation.

Description

Reinforced ground wire pre-twisted suspension clamp
Technical Field
The invention belongs to the technical field of power grid equipment, and particularly relates to a reinforced ground wire pre-twisted suspension clamp.
Background
The suspension clamp for the pre-twisted ground wire reduces the static compressive stress of the clamp on the ground wire because no bolt acts on the ground wire, and simultaneously, the longer pre-twisted wire is wound on the ground wire, and the stress at the suspension point can be dispersed to the length of the whole pre-twisted wire, thereby further effectively reducing the static compressive stress of the ground wire and the dynamic bending stress caused by breeze vibration, greatly improving the fatigue resistance of the ground wire, prolonging the service life of the ground wire, and therefore, the suspension clamp for the pre-twisted ground wire is widely applied to power grid construction.
At present, a large number of ground wire pre-twisted suspension clamps are used in extra-high voltage alternating current and direct current lines constructed in China, and due to the characteristics of high altitude, large height difference, large span difference and the like of the extra-high voltage lines, and in the continuous rainy, snowy and iced weather of partial regions, partial ground wires can bear large ice-covering unbalanced tension. The suspension angle of the existing ground wire pre-twisted suspension clamp is small, under the dual actions of large icing vertical load and icing unbalanced tension, the wire outlet angle of the suspension clamp is larger than the designed suspension angle, the ground wire tension value is larger than the limit load of a suspension casing, the lower parts of horn mouths on two sides of the suspension casing can be deformed and opened until being damaged easily, the grip failure after the suspension casing is damaged causes the ground wire to slide and further causes safety accidents, the suspension casing adopts an independent two-half structure, a plurality of loose accessories can be installed at one time in the installation process, and inconvenience in installation is caused. Therefore, the research on a ground wire pre-twisted suspension clamp which is convenient to install, has high strength and can effectively grip the ground wire is a problem to be solved urgently.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a reinforced ground wire pre-twisted suspension clamp. The reinforced ground wire pre-twisted suspension clamp is high in strength, good in holding effect and convenient to install.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reinforced ground wire pre-twisted suspension clamp comprises an inner layer pre-twisted wire, a ground wire, a rubber liner, an outer layer pre-twisted wire, a reinforced hinge type suspension casing, a hinge pin, a U-shaped anchor ear and a fastening bolt; the reinforced hinge type suspension sleeve shell is characterized in that the inner layer preformed armor rods are wound on the outer layer of the ground wire, the rubber gasket is clamped on the outer side of the inner layer preformed armor rods, the outer layer preformed armor rods are wound on the inner layer preformed armor rods and hoop the rubber gasket tightly, the reinforced hinge type suspension sleeve shell is sleeved on the outer layer preformed armor rods, the hinge pins are installed at the lower end of the reinforced hinge type suspension sleeve shell, the U-shaped anchor ear is matched with the reinforced hinge type suspension sleeve shell, and the fastening bolts penetrate through suspension holes in the upper portion of the U-shaped anchor ear and suspension holes in the upper portion of the reinforced hinge type suspension sleeve shell.
Further, the rubber gasket is in a two-half hyperbolic shape.
Furthermore, the outer layer preformed armor rods are made of high-strength aluminum-clad steel wires, the total length of the outer layer preformed armor rods is controlled in a proper range, and the problem that the installation efficiency is reduced due to the fact that the length of the preformed armor rods is increased in general to increase the grip strength is solved.
Further, strenghthened type hinge type shell of dangling inboard is provided with the hyperbola recess, two tip of hyperbola recess all are provided with big angle of dangling, strenghthened type hinge type shell of dangling's the outside both ends horn mouth all is provided with the strengthening rib, strenghthened type hinge type shell of dangling outside both ends horn mouth's lower extreme is provided with two independent hinge structure.
Furthermore, the sum of the overhang angles of two sides of the traditional overhang casing is about 30 degrees, the one-side overhang angle of the reinforced hinge type overhang casing is 20-25 degrees, and in particular, the special design of a large overhang angle can be carried out according to the practical limit use condition.
Furthermore, the hyperbolic groove is matched with the rubber gasket in shape, so that the outer layer preformed armor rods are attached to the inner side of the reinforced hinge type suspension casing conveniently after the rubber gasket is stressed, and the inner surface of the reinforced hinge type suspension casing is enabled to bear load uniformly.
Furthermore, a certain width gap is reserved between the two independent hinge structures, and the U-shaped hoop can just pass through the bottom of the U-shaped hoop during installation.
Furthermore, the hinge pin is made of stainless steel, so that the strength of the hinge pin is guaranteed, the hinge pin can be prevented from being corroded, and the end part of the hinge pin is provided with a closed pin with a hole for mounting, so that the hinge pin can be effectively prevented from falling off. The two halves of the reinforced hinged pendant case are connected into an openable whole through the two hinge pins.
Furthermore, a U-shaped groove is formed in the inner side of the U-shaped hoop, the distance between openings at the upper end of the U-shaped groove is matched with the distance between the middle installation planes after the reinforced hinge type suspension casing is folded, the diameter of a semi-circular groove at the lower end of the U-shaped groove is smaller than the distance between the openings at the upper end of the U-shaped groove, and the U-shaped hoop and the reinforced hinge type suspension casing are guaranteed to be tightly matched; the U-shaped hoop is made of steel and has enough strength, and the U-shaped hoop and the reinforced hinged suspension casing bear vertical damage load together.
Compared with the prior art, the invention has the following positive beneficial effects:
(1) the invention sets the reinforced type hinge type suspension casing shell into two halves, and sets the reinforcing ribs at the horn mouths at the two outer ends of the reinforced type hinge type suspension casing shell to increase the strength of the weak part of the reinforced type hinge type suspension casing shell, the two independent hinge structures are arranged at the lower ends of the horn mouths at the two outer ends, the two halves of the reinforced type hinge type suspension casing shell are connected into an openable whole body through the two hinge pins, when in installation, only the reinforced type hinge type suspension casing shell which is connected into a whole body by the hinge pins is needed to be opened, then the reinforced type hinge type suspension casing shell is sleeved at the rubber gasket part which is wound with the outer layer preformed armor wires, and then the reinforced type hinge type suspension casing shell is closed, the operation can be completed by one hand, the installation is convenient, and the problem that the independent type two halves of suspension casing shell are staggered front and back in the use or the installation process can be effectively avoided, meanwhile, when the ground wires at the front and the back of the suspension clamp bear large unbalanced tension, two hinge structures of strenghthened type hinge type shell lower extreme of dangling can avoid strenghthened type hinge type shell lower extreme of dangling to be propped open and lead to the problem of damage because of the atress is inhomogeneous, has increased strenghthened type hinge type shell of dangling's effect of gripping simultaneously, has reduced the emergence of incident.
(2) According to the invention, the hyperbolic groove matched with the appearance of the rubber gasket is arranged on the inner side of the reinforced hinge type suspension casing shell, the outer layer preformed armor wires are attached to the inner side of the reinforced hinge type suspension casing shell after the rubber gasket is stressed, so that the surface of the inner side of the reinforced hinge type suspension casing shell uniformly bears load, large suspension angles are designed at two end parts of the hyperbolic groove, when ground wires on the front side and the rear side of the suspension clamp bear large unbalanced tension, the situation that the wire outlet angle is larger than the suspension angle is avoided, and the problem that the end part of the reinforced hinge type suspension casing shell is excessively pulled and damaged under the action of unbalanced load is avoided; and the U-shaped groove is arranged on the inner side of the U-shaped hoop, the distance between the upper end openings of the U-shaped groove is matched with the distance value of the middle mounting plane after the reinforced hinge type suspension sleeve shell is folded, the diameter of the semi-circular groove at the lower end of the U-shaped groove is smaller than the distance between the upper end openings, the U-shaped hoop and the reinforced hinge type suspension sleeve shell are ensured to be tightly matched, the U-shaped hoop and the reinforced hinge type suspension sleeve shell bear vertical damage load together, and the strength of the ground wire pre-twisted suspension clamp is increased.
Drawings
FIG. 1 is a schematic structural view of a reinforced ground wire pre-twisted suspension clamp of the present invention;
FIG. 2 is a schematic structural view of an enhanced hinged drop shell of the present invention;
FIG. 3 is a schematic view of the U-shaped hoop of the present invention;
wherein, the names of the components represented by the reference numerals in the figures are respectively as follows
1. Pre-twisted wires are arranged on the inner layer; 2. a ground wire; 3. a rubber gasket; 4. pre-twisting silk on the outer layer; 5. a reinforced hinged drop shell; 6. a hinge pin; 7. a U-shaped hoop; 8. fastening a bolt; 501. a hyperbolic groove; 502. an overhang angle; 503. reinforcing ribs; 504. a hinge structure; 701. a U-shaped groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Examples
As shown in fig. 1, a reinforced ground wire pre-twisted suspension clamp comprises an inner layer pre-twisted wire 1, a ground wire 2, a rubber gasket 3, an outer layer pre-twisted wire 4, a reinforced hinge type suspension sleeve shell 5, a hinge pin 6, a U-shaped hoop 7 and a fastening bolt 8; the winding of inlayer preformed armor 1 silk is in the skin of ground wire 2, and rubber liner 3 presss from both sides in the outside of inlayer preformed armor 1, and outer preformed armor 4 twines outside inlayer preformed armor 1 and cramps rubber liner 3, and strenghthened type hinge formula cover 5 cup joints on the outer preformed armor 4, and 4 hinge pins 6 are installed at the lower extreme of strenghthened type hinge formula cover 5 that dangles, and U type staple bolt 7 and strenghthened type hinge formula cover 5 that dangles cooperate, and fastening bolt 8 runs through the hole of suspending in midair on 7 upper portions of U type staple bolt and the hole of suspending in midair on 5 upper portions of strenghthened type hinge formula cover 5.
As shown in fig. 1, the outer layer preformed armor rods 4 are made of aluminum-clad steel wires with higher strength than aluminum alloy wires, so that the gripping effect can be effectively increased, and the total length of the outer layer preformed armor rods 4 is controlled in a proper range, so that the problem that the mounting efficiency is reduced on the contrary when the length of the preformed armor rods is increased to increase the gripping force is solved; the hinge pin 6 is made of stainless steel, so that the strength of the hinge pin is guaranteed, the hinge pin can be prevented from being corroded, and the end part of the hinge pin 6 is provided with a closed pin with a hole for mounting, so that the hinge pin 6 can be effectively prevented from falling off.
As shown in fig. 2, a hyperbolic groove 501 matched with the appearance of the rubber liner 3 is arranged on the inner side of the reinforced hinged suspension casing 5, after the rubber liner 3 is stressed, the outer preformed armor wire 4 is attached to the inner side of the reinforced hinged suspension casing 5, so that the surface of the inner side of the reinforced hinged suspension casing uniformly bears the load, large suspension angles 502 are arranged at two ends of the hyperbolic groove 501, the sum of the suspension angles on two sides of the traditional suspension casing is about 30 degrees, in the embodiment, the suspension angle on one side of the reinforced hinged suspension casing is 20 degrees, the suspension angles on two sides are 40 degrees, when the ground wires 2 on the front side and the rear side of the suspension clamp bear large unbalanced tension, the outgoing angle is prevented from being larger than the suspension angle 502, so that the problem that the end of the reinforced hinged suspension casing is excessively pulled and damaged under the unbalanced load is avoided, reinforcing ribs 503 are arranged at horn mouths at two ends of the outer side of the reinforced hinged suspension casing 5, the strength of the weak part of the reinforced hinged suspension casing 5 is enhanced, two independent hinge structures 504 are additionally arranged at the horn mouth end parts at the two outer ends of the reinforced hinged suspension casing 5, the two half reinforced hinged suspension casing 5 are connected into a whole capable of being opened and closed through the two hinge pins 504, the reinforced hinged suspension casing 5 which is connected into a whole by the hinge pin 6 is only required to be opened during installation, then the reinforced hinged suspension casing is sleeved at the rubber gasket 3 part wound with the outer preformed wire 4, the reinforced hinged suspension casing 5 is closed, the installation can be completed by operating with one hand, the installation is convenient, the problem that the two independent two half suspension casing are staggered from front to back in the use or installation process can be effectively avoided, meanwhile, when the ground wires 2 at the front side and the rear side of the suspension clamp bear large unbalanced tension, the two hinge structures 504 at the lower end of the reinforced hinged suspension casing 5 can be prevented from being propped open due to uneven stress Causing damage problems while increasing the gripping action of the strongly reinforced hinged drop shell 5 and reducing the occurrence of electrical safety accidents.
As shown in fig. 2, a certain width gap is left between the two hinge structures 504 at the lower end of the reinforced hinged drop shell 5, which just allows the U-shaped anchor ear 7 to pass through the bottom of the reinforced hinged drop shell 5 when it is installed.
As shown in fig. 3, a U-shaped groove 701 with a wide upper part and a narrow lower part is arranged inside the U-shaped hoop 7; the distance between the upper end openings of the U-shaped groove 701 is matched with the distance value of the middle mounting plane after the reinforced hinge type suspension casing 5 is closed, the diameter of a semicircular groove at the lower end of the U-shaped groove 701 is smaller than the distance between the upper end openings, the U-shaped hoop 7 and the reinforced hinge type suspension casing 5 are guaranteed to be tightly matched, the U-shaped hoop 7 and the reinforced hinge type suspension casing 5 bear vertical damage loads together, and the strength of the ground wire pre-twisted suspension clamp is improved.
Example 2
The difference from example 1 is that: the reinforced hinged suspension case of example 2 has a 22 ° single-sided suspension angle and a 44 ° double-sided suspension angle, all the same as example 1.
Example 3
The difference from example 1 is that: the reinforced hinged drop sleeve of example 3 has a single side drop angle of 23 deg. and two side drop angles of 46 deg., all as in example 1.
Example 4
The difference from example 1 is that: the reinforced hinged drop sleeve of example 4 was constructed at a 24 degree single-sided drop angle and a 48 degree double-sided drop angle, all as in example 1.
Example 5
The difference from example 1 is that: the reinforced hinged version of example 5 was constructed with a 25 on one side overhang angle and a 50 on both sides overhang angle as in example 1.
Specifically, the invention can also perform special design of the suspension angle according to the practical limit use condition of the ground wire preformed suspension clamp, for example, in a high-risk section, the angle of the suspension angle can be further enlarged on the basis of the embodiments 1-5, and from the perspective of the safety of the whole design, the angle of the suspension angle on one side is generally not more than 30 degrees, because if the angle of the suspension angle is too large, the rubber gasket cannot make the outer preformed wire adhere to the reinforced hinged suspension casing, so that the grip force of the ground wire preformed suspension clamp is reduced, and the strength of the ground wire preformed suspension clamp is further weakened.
The specific process of the invention installation is as follows:
when the reinforced ground wire pre-twisted suspension clamp is installed on a ground wire, firstly, an inner layer pre-twisted wire 1 is aligned and installed on and wrapped on the outer layer of a ground wire 2; then, two half-type hyperbolic rubber gaskets 3 are aligned and fixed on the left side and the right side of an inner layer preformed armor rod 1, the front side end parts and the rear side end parts of the two half-type hyperbolic rubber gaskets 3 are aligned, then outer layer preformed armor rods 4 are aligned and installed one by one outside the inner layer preformed armor rod 1 and tightly hooped on the rubber gaskets 3, a reinforced hinge type suspension casing 5 is connected into an opening and closing whole through a hinge pin 6 and two independent hinge structures 504 arranged at the lower end before the reinforced hinge type suspension casing 5 is installed, after the outer layer preformed armor rods 4 are wound, the reinforced hinge type suspension casing 5 is directly opened and sleeved on the rubber gaskets 3 wound with the outer layer preformed armor rods 4, and then the reinforced hinge type suspension casing 5 is closed; and finally, the U-shaped hoop 7 is clamped and sleeved on the mounting plane in the middle of the reinforced hinged suspension casing 5, the fastening bolt 8 penetrates through the suspension hole in the upper part of the U-shaped hoop 7 and the suspension hole in the upper part of the reinforced hinged suspension casing 5, the two parts are connected into a whole to bear the vertical damage load together, and the whole mounting process is finished.
The invention adopts a structure combining the reinforced hinge type suspension casing 5 and the steel U-shaped hoop 7, bears vertical damage load and unbalanced tension together, and has high strength, good holding effect and convenient installation.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A reinforced ground wire pre-twisted suspension clamp is characterized by comprising an inner layer pre-twisted wire (1), a ground wire (2), a rubber gasket (3), an outer layer pre-twisted wire (4), a reinforced hinge type suspension casing (5), a hinge pin (6), a U-shaped hoop (7) and a fastening bolt (8); the winding of inlayer preformed armor rod (1) is in the skin of ground wire (2), rubber liner (3) clamp is in the outside of inlayer preformed armor rod (1), the winding of outer preformed armor rod (4) is in inlayer preformed armor rod (1) and hoop tight rubber liner (3), strenghthened type hinge type drape cover shell (5) cup joint on outer preformed armor rod (4), the lower extreme at strenghthened type hinge type drape cover shell (5) is installed in hinge type hinge type, U type staple bolt (7) with strenghthened type hinge type drape cover shell (5) cooperate, fastening bolt (8) run through the hole that suspends on U type staple bolt (7) upper portion and the hole that suspends on strenghthened type hinge type drape cover shell (5) upper portion.
2. A reinforced ground preformed suspension clamp according to claim 1, characterized in that said rubber pad (3) is hyperbolic in half.
3. A reinforced ground wire preformed suspension clamp according to claim 1, characterized in that the outer preformed armor rods (4) are made of high-strength aluminum-clad steel wire, and the total length thereof is controlled within a proper range.
4. The reinforced ground wire pre-twisted suspension clamp according to claim 1, wherein a hyperbolic groove (501) is arranged on the inner side of the reinforced hinged suspension casing (5), suspension angles (502) are arranged at two ends of the hyperbolic groove (501), reinforcing ribs (503) are arranged at two horn mouths at two outer ends of the reinforced hinged suspension casing (5), and two independent hinge structures (504) are arranged at the lower ends of the two horn mouths at the outer end of the reinforced hinged suspension casing (5).
5. A reinforced ground preformed suspension clamp according to claim 4, characterized in that the hyperbolic recess (501) matches the profile of the rubber pad (3).
6. A reinforced ground preformed suspension clamp as claimed in claim 4, wherein said two separate hinge structures (504) are spaced apart by a gap of a certain width just enough to allow said U-shaped anchor ear (7) to pass through the bottom thereof when installed.
7. A reinforced ground wire preformed suspension clamp according to claim 4, characterized in that the single side angle of the suspension angle (502) is 20-25 °.
8. A reinforced ground wire pre-twisted suspension clamp according to claim 1, characterized in that the hinge pin (6) is made of stainless steel, the end of the hinge pin (6) is provided with a hole-mounted closed pin, and the two halves of the reinforced hinged suspension casings (5) are connected into a whole body which can be opened and closed through the two hinge pins (6).
9. The reinforced ground wire pre-twisted suspension clamp according to claim 1, wherein a U-shaped groove (701) is formed in the inner side of the U-shaped hoop (7), the distance between the upper openings of the U-shaped groove (701) is matched with the distance between the middle mounting planes of the reinforced hinge type suspension sleeves (5) after being folded, the diameter of the semicircular groove at the lower end of the U-shaped groove (701) is smaller than the distance between the upper openings of the U-shaped groove (701), and the U-shaped hoop (7) and the reinforced hinge type suspension sleeves (5) are guaranteed to be tightly matched.
CN202210602685.1A 2022-05-30 2022-05-30 Enhanced ground wire preformed suspension clamp Active CN114944632B (en)

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CN114944632B CN114944632B (en) 2024-01-19

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102452328A (en) * 2010-11-01 2012-05-16 北京盈电电气有限公司 Pre-hinged armored catenarian cable cleat
CN203344754U (en) * 2013-07-19 2013-12-18 北京盈电电气有限公司 Pre-twisted anti-fatigue suspension clamp used for electrified railways
CN203645280U (en) * 2013-11-29 2014-06-11 合肥固力发电气有限公司 Preformed suspension clamp
CN205283048U (en) * 2015-11-26 2016-06-01 江苏天南电力器材有限公司 Pretwisted suspension wire clip
CN206490406U (en) * 2017-03-06 2017-09-12 朋友电力科技有限公司 Pre-hinged catenarian cable cleat
CN208508470U (en) * 2018-04-23 2019-02-15 江苏东恒光电有限公司 A kind of pre-hinged catenarian cable cleat
KR101963733B1 (en) * 2018-10-19 2019-03-29 제룡산업 주식회사 A hinge cover type cable clamp
CN113889955A (en) * 2021-09-18 2022-01-04 国网江苏省电力有限公司建设分公司 Pre-twisted double-suspension plumb line clamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102452328A (en) * 2010-11-01 2012-05-16 北京盈电电气有限公司 Pre-hinged armored catenarian cable cleat
CN203344754U (en) * 2013-07-19 2013-12-18 北京盈电电气有限公司 Pre-twisted anti-fatigue suspension clamp used for electrified railways
CN203645280U (en) * 2013-11-29 2014-06-11 合肥固力发电气有限公司 Preformed suspension clamp
CN205283048U (en) * 2015-11-26 2016-06-01 江苏天南电力器材有限公司 Pretwisted suspension wire clip
CN206490406U (en) * 2017-03-06 2017-09-12 朋友电力科技有限公司 Pre-hinged catenarian cable cleat
CN208508470U (en) * 2018-04-23 2019-02-15 江苏东恒光电有限公司 A kind of pre-hinged catenarian cable cleat
KR101963733B1 (en) * 2018-10-19 2019-03-29 제룡산업 주식회사 A hinge cover type cable clamp
CN113889955A (en) * 2021-09-18 2022-01-04 国网江苏省电力有限公司建设分公司 Pre-twisted double-suspension plumb line clamp

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