CN113746025A - Visual server maintenance auxiliary assembly of transmission of electricity - Google Patents

Visual server maintenance auxiliary assembly of transmission of electricity Download PDF

Info

Publication number
CN113746025A
CN113746025A CN202111049379.1A CN202111049379A CN113746025A CN 113746025 A CN113746025 A CN 113746025A CN 202111049379 A CN202111049379 A CN 202111049379A CN 113746025 A CN113746025 A CN 113746025A
Authority
CN
China
Prior art keywords
power transmission
sliding
tool box
mount
frame
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.)
Granted
Application number
CN202111049379.1A
Other languages
Chinese (zh)
Other versions
CN113746025B (en
Inventor
全浩
石习双
李成
黄学能
严剑锋
牛晓雷
耿艳旭
陈树平
潘龙斌
莫厚鑫
卢海波
卢一岸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuzhou Bureau Csg Ehv Power Transimission Co
Original Assignee
Wuzhou Bureau Csg Ehv Power Transimission Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuzhou Bureau Csg Ehv Power Transimission Co filed Critical Wuzhou Bureau Csg Ehv Power Transimission Co
Priority to CN202111049379.1A priority Critical patent/CN113746025B/en
Publication of CN113746025A publication Critical patent/CN113746025A/en
Application granted granted Critical
Publication of CN113746025B publication Critical patent/CN113746025B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25HWORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
    • B25H3/02Boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)

Abstract

The invention discloses maintenance auxiliary equipment for a power transmission visual server, which comprises an external power transmission line for installing equipment installation angle steel, wherein the outer surface of the equipment installation angle steel is provided with a hoisting mechanism, the bottom end of the hoisting mechanism is provided with a tool box for containing a disassembled part and a bolt in the maintenance process, the invention provides the tool box with the hoisting mechanism and the tool box for monitoring equipment maintenance at the top of the power transmission line, when in use, the tool box utilizes a clamping jaw structure which can slide of the hoisting mechanism to clamp the outer surface of the angle steel at the top of a power tower in use, and then the disassembled part in the maintenance process is placed in the tool box, so that the parts and the bolt in the maintenance process are prevented from falling off, the use is convenient and quick, the maintenance auxiliary equipment is suitable for high-altitude operation, and the problem that the high-altitude disassembly operation is inconvenient when the existing visual monitoring equipment for maintaining at the top of the power tower is effectively solved, and the present invention may also be used in ground operations.

Description

Visual server maintenance auxiliary assembly of transmission of electricity
Technical Field
The invention relates to the technical field of maintenance of visual equipment of a power transmission line, in particular to maintenance auxiliary equipment of a power transmission visual server.
Background
The transmission line is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to the transmission line through control equipment such as a breaker and the like. The structure form of the power transmission line comprises an overhead power transmission line and a cable line
The overhead transmission line consists of a line tower, a wire, an insulator, line hardware, a stay wire, a tower foundation, a grounding device and the like, is erected above the ground, in a high-voltage transmission circuit, for the convenience of monitoring, visual monitoring equipment and a server which is sleeved on the top of the power tower and can provide power, control signals and video signal input and output for the monitoring equipment are mostly assembled on the top of the power tower, and through the small split server arranged on the tower, the control signals and the input and output signals can be directly processed and then directly integrated into a monitoring room through wireless or the wire, the use is convenient, and the integrated monitoring camera has the advantage of good heat dissipation, but the defects are that the overhead operation is realized during maintenance, and more structures such as disassembled parts, bolts and the like are inconvenient to store during the disassembly and maintenance process is inconvenient, in view of the above problems, a maintenance auxiliary device for a power transmission visualization server is particularly provided.
Disclosure of Invention
The invention aims to provide a maintenance auxiliary device for a power transmission visualization server, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a visual server of transmission of electricity maintains auxiliary assembly, is used for erection equipment angle steel in outside transmission line, the surface of erection equipment angle steel is equipped with hoisting machine and constructs, hoisting machine constructs's bottom is equipped with the toolbox that is used for holding part, bolt dismantled in the maintenance process, hoisting machine constructs including the centre gripping frame, the top welding of centre gripping frame has the slip pipe, the slide bar has been cup jointed to the internal surface of slip pipe, the outside end of slide bar is equipped with the clamping jaw, be equipped with the spring between clamping jaw and the slip pipe, the toolbox includes the hoist and mount axle, hoist and mount axle assembly is at the lower surface of centre gripping frame, the bottom welding of hoist and mount axle has the box, the skin weld of box has fixed button, the outer surface of fixed button has cup jointed the anticreep ring that is used for connecting tool safety rope.
Preferably, the outer surface of the clamping frame is provided with a handle.
Preferably, a blocking piece for preventing the sliding rod from being separated from the sliding pipe is welded at one end of the sliding rod, which is far away from the clamping jaw.
Preferably, the surface of separation blade has cup jointed the electric switch ware, the electric switch ware includes the electric actuator, the lower skin weld of electric actuator has the mount, the mount assembly is at the upper surface of centre gripping frame, the internal surface of electric actuator is equipped with the telescopic link that can remove about, the right-hand member of telescopic link is equipped with the connecting block, the draw-in groove has been seted up to the medial extremity of connecting block, the draw-in groove joint is at the surface of slide bar and separation blade.
Preferably, the lower surface welding of centre gripping frame has the hoist and mount ring, the hoist and mount ring assembly is at the surface of hoist and mount axle, the top side surface of hoist and mount ring is located the centre gripping frame lower surface welding and has the reinforcement piece.
Preferably, the lower surface welding of hoist and mount axle has the connecting rod, the lower surface welding of connecting rod has fixed frame, the lower surface welding of fixed frame is at the upper surface of box.
Preferably, the jaws have a tendency to move towards the sliding tube.
Preferably, the lower surface of the sliding rod is provided with a sliding groove, the inner surface of the sliding pipe is welded with a positioning strip, and the sliding groove is sleeved on the outer surface of the positioning strip.
Compared with the prior art, the invention has the beneficial effects that: the tool box provided with the hoisting mechanism and the tool box and used for maintaining the monitoring equipment at the top of the power transmission line is arranged, when the tool box is used, the clamping jaw structure capable of sliding of the hoisting mechanism is utilized, the clamping jaw structure is clamped on the outer surface of the angle steel at the top end of the power tower when the tool box is used, and then the parts disassembled in the maintenance process are placed inside the tool box, so that the parts and bolts in the maintenance process are prevented from falling off, the tool box is convenient and quick to use, is suitable for high-altitude operation, effectively solves the problem that the conventional visual monitoring equipment for maintaining the top of the power tower is inconvenient in high-altitude disassembly operation during maintenance, and can also be used when the tool box is operated on the ground.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an assembly schematic of the present invention.
FIG. 3 is a schematic view of the sectional assembly of the hoisting mechanism of the present invention.
FIG. 4 is a schematic view of the reverse structure of the hoisting mechanism of the present invention.
Fig. 5 is a schematic view of the kit assembly of the present invention.
In the figure:
1. the equipment is provided with angle steel which is arranged,
2. a hoisting mechanism is arranged on the frame body,
21. a clamping frame, 210, a positioning strip, 211, a sliding groove,
22. handle 23, sliding tube 24, sliding rod 25, spring 26, clamping jaw 27, reinforcing block 28, hoisting ring 29, blocking piece,
3. a tool box, a tool box and a tool box,
31. a hoisting shaft 32, a connecting rod 33, a fixed frame 34, a box body 35, a fixed button 36 and an anti-drop ring,
4. an electric switch is arranged on the base plate,
41. the electric motor, 42, the mount, 43, telescopic link, 44, connecting block, 45, draw-in groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a visual server maintenance auxiliary device for power transmission comprises an external power transmission line, wherein equipment installation angle steel 1 is installed on the external surface of the equipment installation angle steel 1, a hoisting mechanism 2 is assembled on the external surface of the equipment installation angle steel 1, a component used for containing and disassembling in the maintenance process and a tool box 3 of bolts are assembled at the bottom end of the hoisting mechanism 2, the hoisting mechanism 2 comprises a clamping frame 21, a sliding pipe 23 is welded at the top end of the clamping frame 21, a sliding rod 24 is sleeved on the inner surface of the sliding pipe 23, a clamping jaw 26 is assembled at the outer side end of the sliding rod 24, a spring 25 is assembled between the clamping jaw 26 and the sliding pipe 23, the tool box 3 comprises a hoisting shaft 31, the hoisting shaft 31 is assembled on the lower surface of the clamping frame 21, a box body 34 is welded at the bottom end of the hoisting shaft 31, a fixing button 35 is welded on the external surface of the box body 34, an anti-off ring 36 used for connecting a tool safety rope is sleeved on the external surface of the fixing button 35, the anti-off ring 36 has a safety rope sleeving structure, the lifting shaft 31 is connected with the lifting ring 28, and a rotation adjusting mechanism and a self-locking mechanism are arranged at the joint of the lifting shaft 31 and the lifting ring, so that the supporting angle of the tool box 3 relative to the equipment installation angle steel 1 can be adjusted;
the tool box provided with the hoisting mechanism 2 and the tool box 3 and used for maintaining the monitoring equipment at the top of the power transmission line is arranged, when the tool box is used, the slidable clamping jaw 26 structure of the hoisting mechanism 2 is utilized to clamp the outer surface of the angle steel at the top end of the power tower when the tool box is used, and then the parts disassembled in the maintenance process are placed inside the tool box 3, so that the parts and bolts in the maintenance process are prevented from falling off, the tool box is convenient and quick to use, is suitable for high-altitude operation, effectively solves the problem that the existing visual monitoring equipment for maintaining the top of the power tower is inconvenient to disassemble in the high-altitude operation during maintenance, and can also be used during ground operation.
Specifically, the grip 22 is attached to the outer surface of the holding frame 21, and when the structure of the holding jaw 26 and the holding frame 21 is pulled, the grip 22 is used to facilitate the operation, and when the grip 22 is held by hand, the finger presses the stopper 29, and the stopper 29 is pressed toward the holding jaw 26 to move and displace, so that the holding jaw 26 can be opened, and the operation of locking and unlocking the holding frame 21 to the outer surface of the angle iron can be facilitated.
Specifically, a blocking sheet 29 for preventing the sliding rod 24 from separating from the sliding tube 23 is welded at one end of the sliding rod 24, which is far away from the clamping jaw 26, so that a blocking effect is achieved when the device is used, and a limiting effect is guaranteed between the sliding rod 24 and the sliding tube 23.
Particularly, electric switch 4 has been cup jointed to the surface of separation blade 29, electric switch 4 includes electric actuator 41, the lower skin weld of electric actuator 41 has mount 42, mount 42 assembles the upper surface at centre gripping frame 21, electric actuator 41's internal surface is equipped with the telescopic link 43 that can remove about, the right-hand member of telescopic link 43 is equipped with connecting block 44, draw-in groove 45 has been seted up to the medial extremity of connecting block 44, draw-in groove 45 joint is at slide bar 24 and separation blade 29's surface, electric switch 4 can the apolegamy use, and electric actuator 41 can use the electric push rod, equipment such as electro-magnet drive the displacement of telescopic link 43, realize electric control's locking and unblock, make clamping jaw 26 centre gripping convenient and fast, and electric actuator 41 is inside to have power supply unit, can charge repetitious usage.
Specifically, the lower surface of the clamping frame 21 is welded with the hoisting ring 28, the hoisting ring 28 is assembled on the outer surface of the hoisting shaft 31, the top side surface of the hoisting ring 28 is positioned on the lower surface of the clamping frame 21 and welded with the reinforcing block 27, and the structural strength of the bottom of the clamping frame 21 in the clamping process is ensured through the inclined reinforcing block 27 structure.
Particularly, hoist and mount axle 31's lower surface welding has connecting rod 32, connecting rod 32's lower surface welding has fixed frame 33, the lower surface welding of fixed frame 33 is at the upper surface of box 34, the interlayer structure who holds instrument and part respectively has at the internal surface of box 34, inside the cavity that holds at interlayer structure, be equipped with box body structure that can fold, and the even magnet structure that is equipped with of lower surface at box body structure, at the in-process that uses, instrument and part can adsorb inside it, avoid wind-force too big, it leads to droing to rock.
Specifically, the jaws 26 tend to move in the direction of the slide tube 23, and the jaws 26 are ensured to always have a tendency to grip inward, so that the jaws 26 can be ensured to grip and stabilize the outer surface of the equipment mounting angle steel in cooperation with the grip frame 21 even without force.
Specifically, the sliding groove 211 is formed in the lower surface of the sliding rod 24, the positioning strip 210 is welded to the inner surface of the sliding tube 23, the sliding groove 211 is sleeved on the outer surface of the positioning strip 210, the clamping jaw 26 is prevented from overturning through the limiting effect of the positioning strip 210, the inner diameter and the outer diameter of the spring before and after compression are within the range between the diameter of the blocking piece 29 and the diameter of the sliding rod 24, and the sliding of the sliding rod 24 is prevented from being affected during compression.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a visual server of transmission of electricity maintains auxiliary assembly, is used for erection equipment installation angle steel (1) in the outside transmission line, its characterized in that: the outer surface of the equipment installation angle steel (1) is provided with a hoisting mechanism (2), the bottom end of the hoisting mechanism (2) is provided with a tool box (3) used for containing detached parts and bolts in the maintenance process, the hoisting mechanism (2) comprises a clamping frame (21), a sliding pipe (23) is welded at the top end of the clamping frame (21), a sliding rod (24) is sleeved on the inner surface of the sliding pipe (23), a clamping jaw (26) is assembled at the outer side end of the sliding rod (24), a spring (25) is arranged between the clamping jaw (26) and the sliding tube (23), the tool box (3) comprises a hoisting shaft (31), the hoisting shaft (31) is assembled on the lower surface of the clamping frame (21), a box body (34) is welded at the bottom end of the hoisting shaft (31), a fixing button (35) is welded on the outer surface of the box body (34), the outer surface of the fixing button (35) is sleeved with a drop-proof ring (36) used for connecting a tool safety rope.
2. A power transmission visualization server maintenance assistance apparatus according to claim 1, characterized in that: the outer surface of the clamping frame (21) is provided with a handle (22).
3. A power transmission visualization server maintenance assistance apparatus according to claim 1, characterized in that: a blocking piece (29) for preventing the sliding rod (24) from being separated from the sliding pipe (23) is welded at one end of the sliding rod (24) far away from the clamping jaw (26).
4. A power transmission visualization server maintenance assistance apparatus according to claim 3, characterized in that: the surface of separation blade (29) has cup jointed electric switch ware (4), electric switch ware (4) include electric actuator (41), the lower skin weld of electric actuator (41) has mount (42), mount (42) assemble the upper surface at centre gripping frame (21), the internal surface of electric actuator (41) is equipped with telescopic link (43) that can remove about, the right-hand member of telescopic link (43) is equipped with connecting block (44), draw-in groove (45) have been seted up to the medial extremity of connecting block (44), draw-in groove (45) joint is at the surface of slide bar (24) and separation blade (29).
5. A power transmission visualization server maintenance assistance apparatus according to claim 1, characterized in that: the lower surface welding of centre gripping frame (21) has hoist and mount ring (28), hoist and mount ring (28) assembly is at the surface of hoist and mount axle (31), the top side surface of hoist and mount ring (28) is located centre gripping frame (21) lower surface welding has reinforcing block (27).
6. A power transmission visualization server maintenance assistance apparatus according to claim 1, characterized in that: the lower surface welding of hoist and mount axle (31) has connecting rod (32), the lower surface welding of connecting rod (32) has fixed frame (33), the lower surface welding of fixed frame (33) is at the upper surface of box (34).
7. A power transmission visualization server maintenance assistance apparatus according to claim 1, characterized in that: the clamping jaw (26) has a tendency to move towards the sliding tube (23).
8. A power transmission visualization server maintenance assistance apparatus according to claim 3, characterized in that: the lower surface of the sliding rod (24) is provided with a sliding groove (211), the inner surface of the sliding pipe (23) is welded with a positioning strip (210), and the sliding groove (211) is sleeved on the outer surface of the positioning strip (210).
CN202111049379.1A 2021-09-08 2021-09-08 Auxiliary equipment is maintained to transmission of electricity visual server Active CN113746025B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111049379.1A CN113746025B (en) 2021-09-08 2021-09-08 Auxiliary equipment is maintained to transmission of electricity visual server

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111049379.1A CN113746025B (en) 2021-09-08 2021-09-08 Auxiliary equipment is maintained to transmission of electricity visual server

Publications (2)

Publication Number Publication Date
CN113746025A true CN113746025A (en) 2021-12-03
CN113746025B CN113746025B (en) 2024-06-21

Family

ID=78736991

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111049379.1A Active CN113746025B (en) 2021-09-08 2021-09-08 Auxiliary equipment is maintained to transmission of electricity visual server

Country Status (1)

Country Link
CN (1) CN113746025B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115513828A (en) * 2022-08-25 2022-12-23 国网江苏省电力有限公司灌南县供电分公司 A jumper insulator string replacement device for transmission lines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103227432A (en) * 2013-04-28 2013-07-31 国家电网公司 Combined device box for power construction overhead work
JP2015020148A (en) * 2013-07-23 2015-02-02 中国電力株式会社 Tool for preventing paint splash
CN205911667U (en) * 2016-07-22 2017-01-25 国网山东省电力公司费县供电公司 Distribution lines cross arm hoisting support
CN208071180U (en) * 2018-04-04 2018-11-09 国网安徽省电力有限公司亳州供电公司 Single-phase multi-purpose pulley
CN110086117A (en) * 2019-05-24 2019-08-02 国家电网有限公司 Novel and multifunctional overhead jointing clamp
CN211859421U (en) * 2020-04-22 2020-11-03 郑州市泰安电力建设有限公司 Protection tool is used in power transmission and transformation circuit installation
CN212114557U (en) * 2020-06-09 2020-12-08 牛海飞 Foreign matter removing tool for power transmission line

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103227432A (en) * 2013-04-28 2013-07-31 国家电网公司 Combined device box for power construction overhead work
JP2015020148A (en) * 2013-07-23 2015-02-02 中国電力株式会社 Tool for preventing paint splash
CN205911667U (en) * 2016-07-22 2017-01-25 国网山东省电力公司费县供电公司 Distribution lines cross arm hoisting support
CN208071180U (en) * 2018-04-04 2018-11-09 国网安徽省电力有限公司亳州供电公司 Single-phase multi-purpose pulley
CN110086117A (en) * 2019-05-24 2019-08-02 国家电网有限公司 Novel and multifunctional overhead jointing clamp
CN211859421U (en) * 2020-04-22 2020-11-03 郑州市泰安电力建设有限公司 Protection tool is used in power transmission and transformation circuit installation
CN212114557U (en) * 2020-06-09 2020-12-08 牛海飞 Foreign matter removing tool for power transmission line

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"《机床与液压》2003年目次索引", 机床与液压, no. 06, 30 December 2003 (2003-12-30) *
马军;: "钢管抱杆的设计与应用", 电力安全技术, no. 11, 15 November 2016 (2016-11-15), pages 30 - 34 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115513828A (en) * 2022-08-25 2022-12-23 国网江苏省电力有限公司灌南县供电分公司 A jumper insulator string replacement device for transmission lines

Also Published As

Publication number Publication date
CN113746025B (en) 2024-06-21

Similar Documents

Publication Publication Date Title
CN110474179B (en) A variable-angle grounding clamp and its use method
CN111702786B (en) A special assembled lead bracket for live working robots
CN213213385U (en) Solar panel with mobile monitoring system
CN111600236B (en) Interphase insulation isolation device for distribution live-line work line and use method
CN104767153A (en) Intelligent insulation wire puncturing grounding clamp
CN215645083U (en) Quick-to-mount-dismount grounding wire suitable for conducting wire
CN113746025A (en) Visual server maintenance auxiliary assembly of transmission of electricity
CN209497012U (en) It is a kind of for folding up the device of drainage thread
CN210404094U (en) Anti-drop high-voltage power line grounding wire with alarm device
CN209200515U (en) A kind of electronic installation tool of parallel groove clamp
CN212287475U (en) Assembling and disassembling tool for drainage plate of power transmission cable terminal rod
CN204967122U (en) Insulated wire puncture ground connection anchor clamps
CN109304576B (en) A mechanical workpiece welding clamping device
CN107658582A (en) A kind of screw short-circuit grounding device
CN110707451A (en) Hook-holding automatic fastening grounding wire clamp and use method thereof
CN217074163U (en) Trolley for overhauling transformer substation
CN106099412A (en) A kind of Portable power construction grounding device and using method thereof
CN110653741A (en) Tool for electrically fastening clamp bolt in overhead electrified remote control of power transmission line
CN204389542U (en) High-altitude converting equipment verification junction pole
CN221282395U (en) Grounding rod
CN207633737U (en) A kind of safety suspension structure for building high-altitude construction for room
CN210302108U (en) Electric telescopic angle-adjusting type electric shock rescue hook for personnel in converter station
CN221633367U (en) Female electric power fitting of spacing universal intelligent monitoring pipe
CN115188564B (en) A cable heating through-core transformer auxiliary opening device and cable placement method
CN215600910U (en) Automatic opening and closing device for temporary fixed insulating lock of 10kV live-line work lead

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