CN112003194A - Insulating locking lever of electrified disconnected drainage line - Google Patents
Insulating locking lever of electrified disconnected drainage line Download PDFInfo
- Publication number
- CN112003194A CN112003194A CN202010995414.8A CN202010995414A CN112003194A CN 112003194 A CN112003194 A CN 112003194A CN 202010995414 A CN202010995414 A CN 202010995414A CN 112003194 A CN112003194 A CN 112003194A
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- insulating
- rod
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- wire
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- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000010079 rubber tapping Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000000867 larynx Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- -1 comprises two modes Chemical compound 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Classifications
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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
- 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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
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Abstract
The invention discloses an insulated lock rod for an electrified disconnection drainage wire, which comprises an insulated rod component, and a first wire clamping mechanism and a second wire clamping mechanism which are arranged in parallel, wherein the second wire clamping mechanism comprises a first clamping block and a second clamping block which are arranged oppositely, the first clamping block is provided with a connecting part connected with the insulated rod component, the insulated rod component can lift relative to the connecting part, the second clamping block is arranged on the insulated rod component, and the first wire clamping mechanism is arranged on the first clamping block. The cable clamp has the advantages of simple structure, contribution to reducing the number of operators, ensuring stable installation of the cable clamp and the like.
Description
Technical Field
The invention relates to an electric power operation tool, in particular to an insulated lock rod for a live disconnection drainage wire.
Background
With the increasing requirements on power supply reliability and high-quality power service, distribution network live working is becoming an important technical means for increasing the supply and marketing and improving the level of high-quality power service. At present, the existing joint for changing and building fire or eliminating faults in the industry expanded network is involved, the power of a previous-stage line cannot be cut off, and the operation of electrically disconnecting and connecting a lead wire must be carried out. The current stage of live line disconnection and connection of the lead wire mainly comprises two modes, namely an insulating glove operation method and an insulating rod operation method, and the current stage of live line disconnection and connection of the lead wire mainly has the following defects:
the operation method of the insulating gloves comprises the following steps of connecting a drainage line in an electrified way:
1) the 1 operator can not complete the operation project, and 2 operators are needed in the bucket, because: when a glove method is adopted for carrying out electrified lead connecting, the drainage wire needs to be controlled to be close to the lead and keep relatively parallel, the drainage wire and the lead are arranged in the lead connecting clamp and keep stable, then a spanner is used for screwing the clamp bolt, the operation can not be finished by only two hands of 1 worker, the drainage wire needs to be fixed by an auxiliary worker in the other 1 buckets by holding the insulating lock rod, so that the drainage wire is close to the lead and keeps relatively parallel, the other main operator stably connects the lead clamp by one hand, and the other hand screws the clamp bolt by the spanner;
2) the existing insulating lock rod and the drainage wire are similar to point contact, and because the drainage wire has stress, the drainage wire and the conducting wire are difficult to be controlled to be in relatively parallel positions through the insulating lock rod, so that the installation process of the wire clamp is influenced, and the hidden danger that the wire clamp is heated or falls off in subsequent operation exists; and the physical consumption of auxiliary personnel in the hopper is large, and if the auxiliary personnel do not support the physical strength to cause the handheld insulating lock rod to fall off, serious potential safety hazards can be caused.
An insulating rod operation method is adopted to connect a drainage line in an electrified way:
the special larynx fastener of insulator spindle operation method is adopted, only need 1 staff to use the rifle formula action bars with the larynx fastener overlap joint of having fixed the drainage wire to electrified main lead and screw up on the pole can, but because drainage wire self has stress, be difficult to guarantee that overlap joint, screw up back drainage wire and main lead and keep the level to influence fastener mounting process, also have the hidden danger that the fastener generates heat or drops in follow-up operation.
The insulating glove operation method or the insulating rod operation method is used for electrically cutting off the drainage wire:
at the present stage, no matter the insulating glove operation method or the insulating rod operation method is electrified to break the drainage wire, 2 operators in the buckets (or on the rods) are needed to cooperate to complete the operation, wherein the No. 1 operator holds the insulating locking rod to control the drainage wire to be broken, the No. 2 operator is responsible for unscrewing a cable clamp bolt or cutting off the drainage wire, and then the No. 1 operator uses the insulating locking rod to stably remove the drainage wire from the electrified main drainage wire.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides the insulating lock rod for the live disconnection drainage wire, which has a simple structure, is beneficial to reducing the number of operators and ensures that a wire clamp is stably installed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a live disconnection drainage wire insulating lock lever, includes insulating pole subassembly and parallel arrangement's first thread clamping mechanism and second thread clamping mechanism, second thread clamping mechanism includes the tight piece of first clamp and the tight piece of second clamp of mutual disposition, be equipped with on the tight piece of first clamp with the connecting portion that the insulating pole subassembly links to each other, insulating pole subassembly can be relative connecting portion go up and down, the tight piece of second clamp is located on the insulating pole subassembly, first thread clamping mechanism locates on the tight piece of first clamp.
As a further improvement of the above technical solution: the first wire clamping mechanism is hinged to the first clamping block, and an adjusting mechanism used for adjusting the rotating angle of the first wire clamping mechanism is arranged on the first clamping block.
As a further improvement of the above technical solution: the adjusting mechanism comprises an adjusting rod and an elastic piece, the adjusting rod is movably arranged in the first clamping block in a penetrating mode, a stopping portion and a limiting portion are arranged on the adjusting rod, the elastic piece is abutted between the first clamping block and the stopping portion, the first wire clamping mechanism is provided with a plurality of limiting grooves around the hinged portion, and the limiting portion is arranged in one of the limiting grooves.
As a further improvement of the above technical solution: the two opposite sides of the limiting part are provided with first guide parts, and the first clamping block is provided with a guide sliding groove matched with the first guide parts.
As a further improvement of the above technical solution: the elastic piece is a spiral spring and is sleeved on the adjusting rod.
As a further improvement of the above technical solution: the first wire clamping mechanism comprises a support and a pair of elastic clamping pieces arranged on the support, and the support and the elastic clamping pieces are arranged on the first clamping block.
As a further improvement of the above technical solution: the insulating rod subassembly includes the external screw thread section, be equipped with on the connecting portion with external screw thread section complex screw hole.
As a further improvement of the above technical solution: the connecting portion are located the downside of first tight piece of clamp, still be equipped with the second guide part on the first tight piece of clamp, the second press from both sides be equipped with second guide part complex direction recess on the tight piece of clamp, the external screw thread section with be equipped with the bearing between the tight piece of second clamp.
As a further improvement of the above technical solution: the insulating rod subassembly is still including locating the insulating rod of external screw thread section below, the insulating rod with link to each other through rotary joint between the external screw thread section, rotary joint's axis of rotation with the axis of insulating rod is perpendicular.
As a further improvement of the above technical solution: the insulating rod is sleeved with a rubber sleeve.
Compared with the prior art, the invention has the advantages that: firstly, the drainage wire is fixed on the conducting wire through the hook-type wire clamping mechanism, so that the operation of electrically disconnecting and connecting the drainage wire can be completed only by 1 person in a bucket or on a pole, the labor cost of the operation is reduced, the labor intensity is reduced, and the working efficiency is improved; the invention discloses an insulated lock rod for an electrified disconnection drainage wire, which is provided with a first wire clamping mechanism and a second wire clamping mechanism which are arranged in parallel, and can be used for clamping and fixing the drainage wire and an electrified main conductor respectively when a drainage wire is connected in an electrified state, controlling the drainage wire to be close to the electrified main conductor and keeping the two relatively parallel positions, so that the stable installation of a wire clamp is facilitated; thirdly, the hook type wire clamping mechanism adopts the angle adjustable design, and the drainage wire can be quickly fixed when the operating personnel are positioned at different positions.
Drawings
Fig. 1 is a schematic perspective view of the insulated lock rod for electrically disconnecting the drainage wire according to the present invention.
Fig. 2 is a schematic structural view of the insulating lock rod for electrically disconnecting the drainage wire.
Fig. 3 is a schematic side view of the insulated locking lever for electrically disconnecting the drainage wire according to the invention.
The reference numerals in the figures denote: 1. an insulating rod assembly; 11. an external threaded section; 12. an insulating rod; 13. a rotary joint; 14. a rubber sleeve; 2. a first wire clamping mechanism; 21. a limiting groove; 22. a support; 23. an elastic clamp; 3. a second wire clamping mechanism; 31. a first clamping block; 32. a second clamping block; 33. a connecting portion; 34. a guide chute; 35. a second guide portion; 36. a guide groove; 4. an adjustment mechanism; 41. adjusting a rod; 42. an elastic member; 43. a stopper portion; 44. a limiting part; 45. a first guide portion.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Fig. 1 to 3 show an embodiment of an insulated lock lever for a live disconnection drainage wire according to the present invention, which includes an insulated lever assembly 1, and a first wire clamping mechanism 2 and a second wire clamping mechanism 3 arranged in parallel, wherein the second wire clamping mechanism 3 includes a first clamping block 31 and a second clamping block 32 arranged in opposite, the first clamping block 31 is provided with a connecting portion 33 connected with the insulated lever assembly 1, the insulated lever assembly 1 can be lifted relative to the connecting portion 33, the second clamping block 32 is provided on the insulated lever assembly 1, and the first wire clamping mechanism 2 is provided on the first clamping block 31.
The insulated lock rod for the live disconnection and connection of the drainage wire is provided with a first wire clamping mechanism 2 and a second wire clamping mechanism 3 which are arranged in parallel, when a drainage wire is connected in a live state, the first wire clamping mechanism 2 and a live main wire can be clamped and fixed respectively, the drainage wire is controlled to be close to the live main wire and keep the positions of the live main wire and the live main wire relatively parallel, and the stable installation of a wire clamp is facilitated, specifically, the drainage wire can be fixed in the first wire clamping mechanism 2 firstly, then a first clamping block 31 is placed on the live main wire by using an insulating rod assembly 1, finally, the second clamping block 32 is driven to ascend by the insulating rod assembly 1, the whole set of device is fixed on the live main wire by matching the second clamping block 32 and the first clamping block 31, the drainage wire is positioned close to the live main wire and keeps the two relatively parallel, the wire clamp installation and the clamp bolt fastening can be conveniently completed subsequently, and the live drainage wire connection operation can be completed, the labor cost of the operation and the labor intensity of the operation personnel can be reduced; when the drainage wire is broken in an electrified way, the first wire clamping mechanism 2 and the second wire clamping mechanism 3 are firstly utilized to fix the drainage wire and the electrified main drainage wire respectively, then a wire clamp bolt is unscrewed or the drainage wire is cut off, the second clamping block 32 is driven to descend through the insulating rod assembly 1, the second clamping block 32 is separated from the first clamping block 31, finally, the whole set of device is stably shifted out from the electrified main drainage wire, the drainage wire is separated from the electrified main drainage wire, and the operation can be finished by only 1 worker in the bucket or on the rod.
Further, in this embodiment, the first wire clamping mechanism 2 is hinged to the first clamping block 31, specifically, the bracket 22 is hinged to the first clamping block 31, and the first clamping block 31 is provided with an adjusting mechanism 4 for adjusting a rotation angle of the first wire clamping mechanism 2. The relative angle between the first thread clamping mechanism 2 and the second thread clamping mechanism 3 is adjusted through the adjusting mechanism 4, so that the drainage thread can be conveniently and quickly fixed when the operator is at different positions and angles.
Furthermore, in the present embodiment, the adjusting mechanism 4 includes an adjusting rod 41 and an elastic member 42, the adjusting rod 41 is movably disposed in the first clamping block 31, a stopping portion 43 and a limiting portion 44 are disposed on the adjusting rod 41, the elastic member 42 is disposed between the first clamping block 31 and the stopping portion 43, the first wire clamping mechanism 2 is disposed around the hinge and has a plurality of limiting grooves 21, and the limiting portion 44 is disposed in one of the limiting grooves 21. When the angle of the first wire clamping mechanism 2 needs to be adjusted, the adjusting rod 41 is pulled downwards by overcoming the elastic action of the elastic piece 42, so that the limiting part 44 is separated from the limiting groove 21, at the moment, the first wire clamping mechanism 2 can rotate around the hinged part, the adjusting rod 41 is released after the first wire clamping mechanism rotates to the position, the adjusting rod 41 integrally rises under the elastic action of the elastic piece 42, the limiting part 44 is clamped into the other limiting groove 21, and the angle of the first wire clamping mechanism 2 is fixed. Preferably, a pull ring may be disposed at the lower end of the adjusting lever 41 to facilitate pulling the adjusting lever 41.
In a preferred embodiment, the first guide portions 45 are disposed on two opposite sides of the limiting portion 44, and the first clamping block 31 is provided with the guide sliding grooves 34 engaged with the first guide portions 45. Through the cooperation of first guide part 45 and direction spout 34, guarantee the motion precision of adjusting pole 41 for spacing portion 44 can accurately block in the corresponding spacing groove 21, prevents simultaneously that first thread tension mechanism 2 from unexpected the rotating, promotes the reliability.
In the preferred embodiment, the elastic member 42 is a coil spring and is sleeved on the adjusting rod 41. Of course, in other embodiments, the elastic member 42 may also be made of other elastic members such as elastic rubber.
As a preferred technical solution, in this embodiment, the first wire clamping mechanism 2 includes a bracket 22 and a pair of elastic clamping pieces 23 disposed on the bracket 22, and the bracket 22 is disposed on the first clamping block 31. The drainage wire can be clamped into the interior or taken out by overcoming the elastic action of the elastic clamping piece 23, and the drainage wire clamping device is simple in structure and convenient to use. The elastic clip 23 may be a rod-shaped structure or a sheet-shaped structure, for example.
Further, in the present embodiment, the insulating rod assembly 1 includes the external thread section 11, the connecting portion 33 is provided with a threaded hole matched with the external thread section 11, that is, the external thread section 11 is in threaded connection with the connecting portion 33, the structure is simple, the connection is reliable, and after the first clamping block 31 is placed on the main conductor, the second clamping block 32 can be driven to lift by rotating the insulating rod assembly 1; the thread preferably adopts a multi-start thread, which is beneficial to improving the lifting speed.
In a preferred embodiment, the connecting portion 33 is located below the first clamping block 31, the first clamping block 31 is further provided with a second guiding portion 35, the second clamping block 32 is provided with a guiding groove 36 engaged with the second guiding portion 35, and a bearing (not shown) is provided between the external threaded section 11 and the second clamping block 32. Through setting up the bearing for the second presss from both sides tight piece 32 and only reciprocates along with insulating rod subassembly 1, and can not rotate along with the rotation of insulating rod subassembly 1, and second guide part 35 can be located guide groove 36 all the time, provides the direction for the elevating movement of second presss from both sides tight piece 32 and insulating rod subassembly 1, further improves the reliability of device and the flexibility of operation.
As a preferable technical solution, in this embodiment, the insulating rod assembly 1 further includes an insulating rod 12 disposed below the external thread section 11, a rubber sleeve 14 is sleeved on the insulating rod 12, the insulating rod 12 is connected with the external thread section 11 through a rotary joint 13, and a rotation axis of the rotary joint 13 is perpendicular to an axis of the insulating rod 12, so that an operator can conveniently and rapidly fix the drainage wire and the live main drainage wire at different positions and angles. The insulating rod 12 is preferably made of resin materials, and has good insulating property, light weight and strength meeting the requirements.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. The utility model provides an electrified disconnected drainage wire insulating locking lever which characterized in that: including insulating pole subassembly (1) and parallel arrangement's first thread clamping mechanism (2) and second thread clamping mechanism (3), second thread clamping mechanism (3) press from both sides tight piece (32) including first clamp piece (31) and the second of relative arrangement, be equipped with on first clamp piece (31) with connecting portion (33) that insulating pole subassembly (1) links to each other, insulating pole subassembly (1) can be relative connecting portion (33) go up and down, second clamp piece (32) are located on insulating pole subassembly (1), first thread clamping mechanism (2) are located on first clamp piece (31).
2. The insulated lock rod for the live-line disconnection and connection of the drainage wire according to claim 1, characterized in that: the first wire clamping mechanism (2) is hinged to the first clamping block (31), and an adjusting mechanism (4) used for adjusting the rotating angle of the first wire clamping mechanism (2) is arranged on the first clamping block (31).
3. The insulated lock rod for the live-line disconnection and connection of the drainage wire according to claim 2, characterized in that: adjustment mechanism (4) are including adjusting pole (41) and elastic component (42), adjust pole (41) and wear to locate with moving in first tight piece (31) of clamp, be equipped with backstop portion (43) and spacing portion (44) on adjusting pole (41), elastic component (42) are supported and are located first tight piece (31) of clamp with between backstop portion (43), first thread tension mechanism (2) are equipped with a plurality of spacing grooves (21) around articulated department, one of them is located in spacing groove (21) spacing portion (44).
4. The insulated lock rod for the live-line disconnection and connection of the drainage wire according to claim 3, characterized in that: the limiting part (44) is provided with a first guide part (45), and the first clamping block (31) is provided with a guide sliding groove (34) matched with the first guide part (45).
5. The insulated lock rod for the live-line disconnection and connection of the drainage wire according to claim 3, characterized in that: the elastic piece (42) is a spiral spring and is sleeved on the adjusting rod (41).
6. The insulated locking bar for live-line tapping wires according to any one of claims 1 to 5, wherein: the first wire clamping mechanism (2) comprises a support (22) and a pair of elastic clamping pieces (23) arranged on the support (22), and the support (22) is arranged on the first clamping block (31).
7. The insulated locking bar for live-line tapping wires according to any one of claims 1 to 5, wherein: insulating rod subassembly (1) includes external screw thread section (11), be equipped with on connecting portion (33) with external screw thread section (11) complex screw hole.
8. The insulated locking rod for the live-line disconnection and connection of the drainage wire according to claim 7, characterized in that: connecting portion (33) are located the downside of first tight piece of clamp (31), still be equipped with second guide part (35) on first tight piece of clamp (31), be equipped with on the second tight piece of clamp (32) with second guide part (35) complex direction recess (36), external screw thread section (11) with be equipped with the bearing between second tight piece of clamp (32).
9. The insulated locking rod for the live-line disconnection and connection of the drainage wire according to claim 7, characterized in that: insulating rod subassembly (1) is still including locating insulating rod (12) of external screw thread section (11) below, insulating rod (12) with link to each other through rotary joint (13) between external screw thread section (11), the axis of rotation of rotary joint (13) with the axis of insulating rod (12) is perpendicular.
10. The insulated locking rod for the live-line disconnection of the drainage wire according to claim 9, wherein: the insulating rod (12) is sleeved with a rubber sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995414.8A CN112003194B (en) | 2020-09-21 | 2020-09-21 | Insulated lock rod with electric disconnection drainage wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995414.8A CN112003194B (en) | 2020-09-21 | 2020-09-21 | Insulated lock rod with electric disconnection drainage wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112003194A true CN112003194A (en) | 2020-11-27 |
| CN112003194B CN112003194B (en) | 2024-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995414.8A Active CN112003194B (en) | 2020-09-21 | 2020-09-21 | Insulated lock rod with electric disconnection drainage wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112003194B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839343A (en) * | 2021-08-25 | 2021-12-24 | 广东电网有限责任公司广州供电局 | Thread locking device |
| CN115800088A (en) * | 2022-12-06 | 2023-03-14 | 海南电网有限责任公司文昌供电局 | High-voltage downlead trimming device |
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| CN107370079A (en) * | 2017-09-21 | 2017-11-21 | 国网冀北电力有限公司技能培训中心 | It is a kind of to connect and hook the livewire work method of clip lead |
| CN109103808A (en) * | 2018-09-27 | 2018-12-28 | 国网山东省电力公司济南供电公司 | A kind of drainage thread insulating bar working system electrification quick access tool |
| WO2019177276A1 (en) * | 2018-03-16 | 2019-09-19 | 대원전기 주식회사 | Cable clamp connection device having insulating lifting function and indirect live wire uninterruptible power distribution method using device |
| CN111342393A (en) * | 2020-04-02 | 2020-06-26 | 国网浙江武义县供电有限公司 | Hook-type insulating rod |
| CN212435222U (en) * | 2020-09-21 | 2021-01-29 | 国网湖南省电力有限公司 | Insulating locking lever of electrified disconnected drainage line |
-
2020
- 2020-09-21 CN CN202010995414.8A patent/CN112003194B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107370079A (en) * | 2017-09-21 | 2017-11-21 | 国网冀北电力有限公司技能培训中心 | It is a kind of to connect and hook the livewire work method of clip lead |
| WO2019177276A1 (en) * | 2018-03-16 | 2019-09-19 | 대원전기 주식회사 | Cable clamp connection device having insulating lifting function and indirect live wire uninterruptible power distribution method using device |
| CN109103808A (en) * | 2018-09-27 | 2018-12-28 | 国网山东省电力公司济南供电公司 | A kind of drainage thread insulating bar working system electrification quick access tool |
| CN111342393A (en) * | 2020-04-02 | 2020-06-26 | 国网浙江武义县供电有限公司 | Hook-type insulating rod |
| CN212435222U (en) * | 2020-09-21 | 2021-01-29 | 国网湖南省电力有限公司 | Insulating locking lever of electrified disconnected drainage line |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839343A (en) * | 2021-08-25 | 2021-12-24 | 广东电网有限责任公司广州供电局 | Thread locking device |
| CN115800088A (en) * | 2022-12-06 | 2023-03-14 | 海南电网有限责任公司文昌供电局 | High-voltage downlead trimming device |
| CN115800088B (en) * | 2022-12-06 | 2024-08-20 | 海南电网有限责任公司文昌供电局 | High-voltage down-lead wire cutting device |
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| Publication number | Publication date |
|---|---|
| CN112003194B (en) | 2024-09-17 |
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