CN109066456B - Device and method for replacing insulator - Google Patents
Device and method for replacing insulator Download PDFInfo
- Publication number
- CN109066456B CN109066456B CN201810922628.5A CN201810922628A CN109066456B CN 109066456 B CN109066456 B CN 109066456B CN 201810922628 A CN201810922628 A CN 201810922628A CN 109066456 B CN109066456 B CN 109066456B
- Authority
- CN
- China
- Prior art keywords
- insulator
- clamping piece
- replacing
- hole
- ratchet wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009194 climbing Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Electric Cable Installation (AREA)
- Insulators (AREA)
Abstract
The invention provides a device and a method for replacing an insulator, belonging to the technical field of insulator replacement and comprising an outer side stretcher and an inner side stretcher; the outer side stretcher comprises a first semicircular ring fixing component and a hard pull arm which are detachably connected, and the hard pull arm is fixed on the first semicircular ring fixing component; the inner side stretcher comprises two second semicircular components, a steel wire rope, a ratchet wheel and a ratchet wheel operating rod which are detachably connected; the second semicircular ring fixing component is provided with a connecting through hole, the ratchet wheel is arranged on the second semicircular component on one side of the connecting through hole, one end of the steel wire rope penetrates through the connecting through hole to be fixed on the ratchet wheel, and the ratchet wheel operating rod is used for operating the ratchet wheel to fasten the steel wire rope. The device and the method for replacing the insulator can accelerate the replacement time, protect the lead and reduce the construction strength.
Description
Technical Field
The invention belongs to the technical field of insulator replacement, and particularly relates to a device and a method for replacing an insulator.
Background
In a power distribution network, tension rods, corner rods and terminal rods are widely used, due to the action characteristics, the insulator is generally composed of a plurality of pieces, in thunderstorm weather seasons, a phenomenon that a single insulator is punctured sometimes occurs, at the moment, the insulator needs to be replaced, the conventional replacement technical process comprises the steps of ① construction workers climbing the rod, installing temporary pull wires on the opposite side of the single insulator needing to be replaced, → ② pulling the rod tightly, the construction workers climbing the rod again, detaching a lead expansion-resistant wire clamp of the single insulator needing to be replaced, loosening the lead by using a tightener and a traction rope, placing the lead at a safe position such as the ground, → ③ detaching an insulator assembly from the terminal rod, placing the ground by the traction rope, → ④ completing the replacement of the single insulator on the ground, → ⑤ installing the assembly, 387 → 2 installing the lead, tightening the lead, ⑦ detaching the temporary pull wires on the opposite side, and eliminating defects.
The defects and shortcomings of the prior art are as follows: firstly, the power failure time is long; secondly, the construction strength of the operators on the rod is high; thirdly, the risk of complaints caused by frequent power failure is higher; fourthly, the repeated disassembly and assembly of the lead causes partial abrasion of the metal surface, thereby reducing the tensile strength of the lead and shortening the service cycle.
Disclosure of Invention
The invention aims to provide a device and a method for replacing an insulator, which aim to solve the technical problems of long power failure time, high construction strength and short service cycle of a lead in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the device for replacing the insulator comprises an outer stretcher and an inner stretcher;
the outer side stretcher comprises two first semicircular ring fixing components and a hard pull arm, wherein the two first semicircular ring fixing components are detachably connected, a first through hole for accommodating a wire is formed between the two first semicircular ring fixing components, and the hard pull arm is fixed on the first semicircular ring components;
the inner side stretcher comprises two second semicircular components, a steel wire rope, a ratchet wheel and a ratchet wheel operating rod which are detachably connected; a second through hole for accommodating a lead is formed between the two second semicircular ring fixing members, a connecting through hole is further formed in each second semicircular ring fixing member, the ratchet wheel is arranged on the second semicircular member on one side of the connecting through hole, and one end of the steel wire rope penetrates through the connecting through hole and is fixed on the ratchet wheel; the other end of the steel wire rope is detachably connected with the hard pull arm, and the ratchet wheel operating rod is used for operating the ratchet wheel to fasten the steel wire rope.
Further, still include cross arm fastening anchor clamps, cross arm fastening anchor clamps are including dismantling first last clamping piece and first clamping piece, the connecting rod of connecting, first last clamping piece and first clamping piece are used for fixing on the cross arm, the one end of first last clamping piece and first clamping piece is equipped with connecting elements, connecting elements with second semicircle ring fixed component passes through the connecting rod can dismantle the connection.
Furthermore, the connecting rod is a screw rod, a first bolt through hole is formed in the second semicircular ring fixing component, a second bolt through hole is formed in the connecting component, and two ends of the screw rod are respectively fixed with the first bolt through hole and the second bolt through hole.
Further, still include wire fastening fastener, wire fastening fastener is including dismantling the second of connecting and going up clamping piece and second lower clamping piece, clamping piece one end is equipped with first support piece on the second, clamping piece one end is equipped with second support piece under the second, the second go up the clamping piece with the second has the fastening down in the middle of the clamping piece the third through-hole of wire, first support piece with second support piece is used for the side support the outside elongator.
Furthermore, a ratchet sleeve is fixed on the ratchet wheel, an internal thread is arranged on the ratchet sleeve, a screw thread matched with the internal thread is arranged at one end of the ratchet operating rod, and the ratchet operating rod drives the ratchet wheel to fasten the steel wire rope through the ratchet sleeve.
Furthermore, a connecting lantern ring is arranged on the hard pull arm and used for connecting the hard pull arm with the steel wire rope.
Furthermore, two ends of the first semicircular ring fixing component are respectively provided with a connecting hinge, and the connecting hinges of the first semicircular ring fixing component are symmetrically fixed through a screw rod.
Furthermore, reinforcing ribs are arranged on the second upper clamping piece and the second lower clamping piece which are detachably connected.
Furthermore, rubber pads are arranged on the side faces, in contact with the insulator, of the inner stretcher and the outer stretcher.
Another object of an embodiment of the present invention is to provide an insulator replacing method using the above apparatus for replacing an insulator, the method for replacing a damaged insulator located in a middle piece, the method including:
installing the inner side stretcher on the inner side of the broken insulator;
mounting the outer side stretcher on the outer side of the broken insulator;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
The device and the method for replacing the insulator have the advantages that: compared with the prior art, the device for replacing the insulator provided by the invention has the advantages that the damaged insulators at different positions can be replaced aiming at the ground by adopting a plurality of special devices, the operation is simple and convenient, the replacement time can be shortened, the lead can be well protected, and the construction strength can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a front view of a schematic structural diagram of an outside stretcher according to an embodiment of the present invention;
FIG. 2 is a left side view of a schematic structural diagram of an outside stretcher according to an embodiment of the invention;
FIG. 3 is a right side view of a schematic structural diagram of an outside stretcher according to an embodiment of the invention;
FIG. 4 is a front view of a schematic structural diagram of an inside stretcher according to an embodiment of the invention;
fig. 5 is a left side view of a schematic structural diagram of an inside stretcher according to an embodiment of the invention;
FIG. 6 is a right side view of a schematic structural diagram of an inboard stretcher provided by an embodiment of the present invention;
FIG. 7 is a front view of a cross arm fastening clip according to an embodiment of the present invention;
FIG. 8 is a left side view of a cross arm fastening clip in accordance with an embodiment of the present invention;
FIG. 9 is a top view of a cross-arm fastening clip according to an embodiment of the present invention;
fig. 10 is a front view of a schematic structural view of a wire clamp according to an embodiment of the present invention;
fig. 11 is a left side view of a schematic structural view of a wire clamp according to an embodiment of the present invention;
fig. 12 is a right side view of a schematic structural view of a wire clamp according to an embodiment of the present invention;
fig. 13 is a schematic view of different types of hard pull arms provided by the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6 together, the apparatus for replacing an insulator according to the present invention will now be described. The device for replacing the insulator comprises an outer stretcher and an inner stretcher;
the outer side stretcher comprises two first semicircular fixing members 101 and a hard pull arm 102 which are detachably connected, a first through hole 103 for accommodating a wire is formed between the two first semicircular fixing members 101, and the hard pull arm 102 is fixed on the first semicircular fixing members 101;
the inner stretcher comprises two detachably connected second semicircular members 201, a steel wire rope 202, a ratchet 203 and a ratchet operating rod 204; a second through hole 205 for accommodating a lead is formed between the two second semicircular ring fixing members 201, a connecting through hole 206 is further formed in the second semicircular ring fixing member 201, the ratchet 203 is arranged on the second semicircular member on one side of the connecting through hole 206, and one end of the steel wire rope 202 penetrates through the connecting through hole 206 and is fixed on the ratchet 203; the other end of the cable 202 is detachably connected to the hard arm 102, and the ratchet lever 204 is used to operate the ratchet 203 to tighten the cable 202.
In this embodiment, a threaded hole 104 is further formed in the first semicircular fixing member 101, an external thread is formed at one end of the hard pull arm 102, the hard pull arm 102 is fixed to the first semicircular fixing member 101 through the threaded hole 104, and the plurality of threaded holes 104 are formed to ensure stable connection between the outer side stretcher and the inner side stretcher.
The device for replacing the insulator provided by the embodiment of the invention has the beneficial effects that: compared with the prior art, the device for replacing the insulator provided by the invention has the advantages that the damaged insulators at different positions can be replaced aiming at the ground by adopting a plurality of special devices, the operation is simple and convenient, the replacement time can be shortened, the lead can be well protected, and the construction strength can be reduced.
Further, referring to fig. 7 to 9 together, as an embodiment of the device for replacing an insulator provided by the present invention, the device for replacing an insulator further includes a cross-arm fastening clamp, the cross-arm fastening clamp includes a first upper clamping piece 301 and a first lower clamping piece 302, which are detachably connected, and a connecting rod 303, the first upper clamping piece 301 and the first lower clamping piece 302 are used for being fixed on the cross arm, one end of the first upper clamping piece 301 and one end of the first lower clamping piece 302 are provided with a connecting member 304, and the connecting member 304 is detachably connected with the second semicircular fixing member 201 through the connecting rod 303.
In the present embodiment, the first upper clip 301 and the second upper clip 302 are connected by a fixing screw 306 and a fixing nut 307.
Further, referring to fig. 7 to 9, as a specific embodiment of the apparatus for replacing an insulator according to the present invention, the connecting rod 303 is a screw rod, the second semicircular ring fixing member 201 is provided with a first bolt through hole 207, the connecting member 304 is provided with a second bolt through hole 305, and two ends of the screw rod are respectively fixed in the first bolt through hole 207 and the second bolt through hole 305.
Further, referring to fig. 10 to 12 together, as an embodiment of the apparatus for replacing an insulator according to the present invention, the apparatus for replacing an insulator further includes a wire fastening clip, the wire fastening clip includes a second upper clip 401 and a second lower clip 402 detachably connected to each other, one end of the second upper clip 401 is provided with a first supporting member 403, one end of the second lower clip 402 is provided with a second supporting member 404, a third through hole 405 for fastening a wire is provided between the second upper clip 401 and the second lower clip 402, and the first supporting member 403 and the second supporting member 404 are used for laterally supporting the outer stretcher.
In this embodiment, the first and second supports each have a semicircular inner groove 406 on the side to facilitate lateral support of the lateral stretcher.
Further, referring to fig. 7 to 9 together, as an embodiment of the apparatus for replacing an insulator according to the present invention, a ratchet sleeve 208 is fixed on the ratchet 203, an internal thread is provided on the ratchet sleeve 208, a screw thread matching the internal thread is provided at one end of the ratchet operating rod 204, and the ratchet operating rod 204 drives the ratchet 203 to fasten the wire rope 202 through the ratchet sleeve 208.
Further, referring to fig. 10 to 13 together, as an embodiment of the apparatus for replacing an insulator provided by the present invention, a connection collar 105 is disposed on the hard pull arm 102, and the connection collar 105 is used for connecting the hard pull arm 102 and the steel cable 202.
In this embodiment, the hard pull arm is fixed to the first semicircular ring fixing member 101 by a bolt and a screw, and the hard pull arm may be used in a different model depending on the position of the damaged insulator to be replaced.
Further, referring to fig. 1 to 6, as an embodiment of the device for replacing an insulator according to the present invention, the first semicircular fixing members 101 are provided at both ends thereof with connecting hinges 106, and the connecting hinges 106 of the two first semicircular fixing members 101 are symmetrically fixed by screws.
In this embodiment, correspondingly, the two ends of the second semicircular ring fixing member 201 of the inner stretcher are also provided with connecting hinges 209, and the connecting hinges 209 of the two second semicircular ring fixing members 201 are symmetrically fixed through screws.
Further, referring to fig. 10 to 12, as an embodiment of the apparatus for replacing an insulator provided by the present invention, reinforcing ribs are disposed on the second upper clip 401 and the second lower clip 402, which are detachably connected to each other.
In this embodiment, the second upper clip 401 and the second lower clip 402 are connected by a screw 407, and reinforcing ribs are disposed on both the second upper clip 401 and the second lower clip 402. The reinforcing ribs include a transverse reinforcing rib 408 and a longitudinal reinforcing rib 409, and the transverse reinforcing rib 408 and the longitudinal reinforcing rib 409 are used for reinforcing the connection of the second upper jaw 401 and the second lower jaw 402.
Further, as a specific embodiment of the device for replacing the insulator provided by the present invention, the inner stretcher and the outer stretcher are provided with rubber pads on the side surfaces contacting with the insulator, so as to protect the insulator from being crushed by the inner stretcher and the outer stretcher.
In this embodiment, the rubber pads of the inner stretcher and the outer stretcher are used for protecting the undamaged insulator and avoiding the damage to the undamaged insulator when the damaged insulator is replaced.
The embodiment of the invention also provides an insulator replacing method adopting the device for replacing the insulator, which is used for replacing the damaged insulator positioned on the middle piece and comprises the following steps:
installing an inner side stretcher on the inner side of the damaged insulator;
installing an outer side stretcher outside the damaged insulator;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
In this embodiment, the method further comprises replacing the broken insulator located in the inner sheet:
cross arm fixing clamp mounted at cross arm
Connecting the cross arm fixing clamp and the inner side stretcher;
installing an outer side stretcher outside the damaged insulator;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
The method further comprises the following steps of replacing the broken insulator positioned on the outer sheet:
installing an inner side stretcher on the inner side of the damaged insulator;
installing a wire fastening clamp outside a strain clamp of a wire;
connecting a wire fastening clamp and an outer side stretcher;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
The method also comprises the following steps of replacing the whole group of insulators:
a cross arm fixing clamp is arranged at the cross arm;
connecting the cross arm fixing clamp and the inner side stretcher;
installing a wire fastening clamp outside a strain clamp of a wire;
connecting a wire fastening clamp and an outer side stretcher;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
The embodiment of the invention selects different appliances for insulators at different positions, is convenient and quick to operate and has wider applicability.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An apparatus for replacing insulators, comprising: the device comprises an outer side stretcher, an inner side stretcher and a cross arm fastening clamp;
the outer side stretcher comprises two first semicircular ring fixing components and a hard pull arm, wherein the two first semicircular ring fixing components are detachably connected, a first through hole for accommodating a wire is formed between the two first semicircular ring fixing components, and the hard pull arm is fixed on the first semicircular ring components;
the inner side stretcher comprises two second semicircular ring fixing members, a steel wire rope, a ratchet wheel and a ratchet wheel operating rod which are detachably connected; a second through hole for accommodating a lead is formed between the two second semicircular ring fixing members, a connecting through hole is further formed in each second semicircular ring fixing member, the ratchet wheel is arranged on the second semicircular ring fixing member on one side of the connecting through hole, and one end of the steel wire rope penetrates through the connecting through hole and is fixed on the ratchet wheel; the other end of the steel wire rope is detachably connected with the hard pull arm, and the ratchet wheel operating rod is used for operating the ratchet wheel to fasten the steel wire rope;
the cross arm fastening clamp comprises a first upper clamping piece, a first lower clamping piece and a connecting rod, wherein the first upper clamping piece and the first lower clamping piece are detachably connected, the first upper clamping piece and the first lower clamping piece are used for being fixed on the cross arm, one end of the first upper clamping piece and one end of the first lower clamping piece are provided with a connecting component, and the connecting component and the second semicircular ring fixing component are detachably connected through the connecting rod.
2. The apparatus according to claim 1, wherein the connecting rod is a threaded rod, the second semicircular fixing member is provided with a first bolt through hole, the connecting member is provided with a second bolt through hole, and two ends of the threaded rod are respectively fixed in the first bolt through hole and the second bolt through hole.
3. The apparatus for replacing an insulator of claim 1, further comprising: wire fastening fastener, wire fastening fastener is including dismantling clamping piece and the clamping piece under the second of connection, clamping piece one end is equipped with first support piece on the second, clamping piece one end is equipped with second support piece under the second, the clamping piece on the second with the second has the fastening down in the middle of the clamping piece the third through-hole of wire, first support piece with second support piece is used for the side to support outside elongator.
4. The apparatus for replacing insulators of claim 1, wherein: a ratchet sleeve is fixed on the ratchet wheel, an internal thread is arranged on the ratchet sleeve, a screw thread matched with the internal thread is arranged at one end of the ratchet wheel operating rod, and the ratchet wheel operating rod drives the ratchet wheel to fasten the steel wire rope through the ratchet sleeve.
5. The apparatus for replacing insulators of claim 1, wherein: and the hard pull arm is provided with a connecting lantern ring, and the connecting lantern ring is used for connecting the hard pull arm with the steel wire rope.
6. The apparatus for replacing insulators of claim 1, wherein: one end of each first semicircular fixing component is provided with a connecting hinge, and the connecting hinges of the first semicircular fixing components are symmetrically fixed through screws.
7. A device for replacing insulators according to claim 3, characterised in that: and reinforcing ribs are arranged on the second upper clamping piece and the second lower clamping piece which are detachably connected.
8. The apparatus for replacing insulators of claim 1, wherein: and rubber pads are arranged on the side surfaces of the inner side stretcher and the outer side stretcher which are contacted with the insulator.
9. An insulator replacing method using the apparatus for replacing an insulator according to claim 1, the method for replacing a broken insulator in a center piece, comprising:
installing the inner side stretcher on the inner side of the broken insulator;
mounting the outer side stretcher on the outer side of the broken insulator;
and connecting the inner side stretcher and the outer side stretcher, emptying the damaged insulator, and replacing the damaged insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922628.5A CN109066456B (en) | 2018-08-14 | 2018-08-14 | Device and method for replacing insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810922628.5A CN109066456B (en) | 2018-08-14 | 2018-08-14 | Device and method for replacing insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066456A CN109066456A (en) | 2018-12-21 |
| CN109066456B true CN109066456B (en) | 2020-02-07 |
Family
ID=64683936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810922628.5A Active CN109066456B (en) | 2018-08-14 | 2018-08-14 | Device and method for replacing insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109066456B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697491A (en) * | 2020-05-27 | 2020-09-22 | 国网河北省电力有限公司邢台供电分公司 | Single insulator staple bolt of acting as go-between |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201742026U (en) * | 2010-07-23 | 2011-02-09 | 张鉴峰 | Universal type fixture for replacing glass insulator of overhead power transmission line |
| CN202978103U (en) * | 2012-12-07 | 2013-06-05 | 湖南省电网建设公司 | Insulator fixture |
| CN203398647U (en) * | 2013-09-04 | 2014-01-15 | 中国石油天然气集团公司 | Insulator replacing tool |
| CN105811312B (en) * | 2016-06-06 | 2017-06-09 | 国网湖南省电力公司带电作业中心 | Distribution line changes the bottle supporting stringing instrument and its application process of strain insulator |
| JP2018085811A (en) * | 2016-11-22 | 2018-05-31 | 中国電力株式会社 | Insulator support net |
| CN207183929U (en) * | 2017-09-04 | 2018-04-03 | 贵州电网有限责任公司 | A kind of 110kV power line tensions list insulator string more changing device |
-
2018
- 2018-08-14 CN CN201810922628.5A patent/CN109066456B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109066456A (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018360214A1 (en) | Overhead power distribution line | |
| WO2012088987A1 (en) | Maintenance tool for insulator of direct current transmission line | |
| CA2823132C (en) | Maintenance tool used for direct current transmission line | |
| CN109066456B (en) | Device and method for replacing insulator | |
| CN110611281A (en) | Carbon fiber wire strain backup complete device | |
| CN203747299U (en) | Mountable and dismountable dual-purpose airfoil-profile clamping device | |
| CN202978103U (en) | Insulator fixture | |
| CN114123030B (en) | Tool and method for replacing triple strain insulator string | |
| CN203109899U (en) | Insulating tool for installing bird repellent device without power failure | |
| CN113067300B (en) | Improved generation electric power strain clamp | |
| CN211262640U (en) | Glass insulator falling test device | |
| CN103579952B (en) | Bulb fixing-line device for overhead transmission line stringing | |
| CN208656288U (en) | The replacement tool of ground electrode circuit insulator and fitting | |
| CN202363811U (en) | Cross arm clamping device for replacing insulator of direct-current 500kv straight-line string | |
| CN205944971U (en) | Insulating strain clamp of scalable steel wire pull rod | |
| CN206004211U (en) | Charged for replacement 35 110kV compresses shaped cable clamp strain insulator list insulator string fixture | |
| CN220711014U (en) | Suspended wire break wire connector | |
| CN218351741U (en) | High tension cable terminal earth connection anchor clamps | |
| CN211351474U (en) | 66KV inner wedge type strain fast wire clamp fixture | |
| CN216530448U (en) | Live replacement strain insulator-string wire side gold utensil and adjustment wire arc specialized tool that hangs down | |
| CN209433961U (en) | A kind of insulator chain lightning protection connection gold utensil | |
| CN211063297U (en) | Wire-resistant clamp device for electric power engineering | |
| CN203553770U (en) | Ball head wire clamping device applied to overhead line stringing | |
| CN215640627U (en) | Auxiliary device for bending failure load test of disc-type porcelain insulator | |
| CN114204482B (en) | Universal live working dummy device for power transmission line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |