CN106694763A - Hydraulic wire clippers - Google Patents
Hydraulic wire clippers Download PDFInfo
- Publication number
- CN106694763A CN106694763A CN201710135350.2A CN201710135350A CN106694763A CN 106694763 A CN106694763 A CN 106694763A CN 201710135350 A CN201710135350 A CN 201710135350A CN 106694763 A CN106694763 A CN 106694763A
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- CN
- China
- Prior art keywords
- hydraulic
- binding clip
- pole
- slider
- oil
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
The invention relates to a pair of hydraulic wire clippers. The hydraulic wire clippers comprise a supporting rod, a clipper jaw assembly arranged at the front end of the supporting rod, a crank-slider mechanism in transmission connection with the clipper jaw assembly, a hydraulic drive mechanism in transmission connection with the crank-slider mechanism, and a hydraulic control system communicating with the hydraulic drive mechanism. Under regulation and control of the hydraulic control system, the hydraulic drive mechanism sequentially drives the crank-slider mechanism and the clipper jaw assembly to move so that an electric wire arranged in the clipper jaw assembly can be cut off. Compared with the prior art, the electric wire in the air can be cut off on the ground, or the electric wire within a certain distance is cut off during aloft work, operation is easy, the cut-off force is large, manpower is saved, the work efficiency is high, insulativity is good, and the hydraulic wire clippers are safe, reliable and long in service life.
Description
Technical field
The invention belongs to technical field of electric power construction, it is related to a kind of hydraulic wire clippers.
Background technology
, it is necessary to often cut electric wire in the case where not powering off in power construction operation.Bolt clipper is conventional one kind
Instrument, more easily can cut electric wire.Conventional bolt clipper is manual bolt clipper at present, and the design of manual bolt clipper comes
Scissors principle is come from, with the advantage such as simple to operate, easy to use, small volume, can be carried with, but small hand breaks
Pincers can only cut thinner wire rod, and when thicker metal wire rod is run into, small hand bolt clipper shears the difficult larger of wire rod,
Operator needs to use the larger strength just can reluctantly to cut off wire rod, and not only labour intensity is big, can also directly influence work effect
Rate.In the air during operation, manual bolt clipper is difficult to easily and quickly cut electric wire, and operating wastes time and energy, and greatly reduces
Operating efficiency.
Authorization Notice No. discloses a kind of hydraulic wire clippers for the Chinese invention patent of CN201244638Y, wherein, it is hand
Hydraulic pump connects binding clip upper cylinder one end with flexible pipe, and hook-shaped binding clip is connected in the other end of oil cylinder, and crescent moon is opened on the hook top of binding clip
Groove, connects moon knife on in-oil cylinder plunger, moon knife stretches out oil cylinder, and jaw is hooked and treated by the edge of a knife alignment crescent when using
Disrumpent feelings reinforcing bar, shake hand pump, pressure oil liquid by hydraulic tube enter oil cylinder in promote plunger, be connected to the crescent moon on plunger
Knife is gradually advanced forward, with the rising of oil liquid pressure, the tangential reinforcing bar of moon knife, and under liquid oil pressure constantly increase, last steel
Muscle is cut off between moon knife and crescent.In the technical scheme of above-mentioned patent disclosure, hydraulic wire clippers simple structure can
Easily electric wire or reinforcing bar are cut.But the hydraulic wire clippers are when in use, hand shaken hand pump is needed, to provide power, behaviour
Make complicated and laborious, inefficiency.Further, since a hand dynamic hand pump, another hand need to control the parts such as jaw
Stabilization, it is extremely inconvenient in work high above the ground, it is prone to accidents, thus it is big using limitation.
The content of the invention
The purpose of the present invention be exactly provided for the defect for overcoming above-mentioned prior art to exist a kind of high working efficiency and
Hydraulic wire clippers easy to operate.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of hydraulic wire clippers, the bolt clipper is passed including pole, the binding clip component for being arranged on pole front end and binding clip component
Hydraulic drive mechanism that the slider-crank mechanism of dynamic connection is connected with slider-crank mechanism and with hydraulic drive mechanism phase
The hydraulic control system of connection, under the regulation and control of hydraulic control system, described hydraulic drive mechanism drives crank block successively
Mechanism and binding clip component movement, the electric wire being placed in binding clip component are cut.Described hydraulic control system is arranged on outside pole
In portion, such as ground or other supporters, to mitigate the gross weight of the upper each part of pole, it is easy to a hand to hold pole and is broken
Operation.
Described binding clip component includes the first binding clip, the second binding clip that are hinged, the first described binding clip and the second pincers
The corresponding section of head is equipped with the edge of a knife.Place the wires between the first binding clip and the second binding clip, in the drive of hydraulic drive mechanism
Under, the first binding clip relatively rotates with the second binding clip, makes the edge of a knife of the first binding clip and the second binding clip close to each other, and then by electricity
Line is cut.
Described slider-crank mechanism includes that the first clamp handle being arranged between the first binding clip and pole and the second binding clip are passed
Clamp handle connecting rod and be arranged on branch along the movement of strut lengths direction that second clamp handle of dynamic connection and the rear end of the second clamp handle are hinged
The sliding block being connected on bar and with the rear-end transmission of clamp handle connecting rod.Described the first binding clip, the first clamp handle and pole are fixed successively to be connected
Connect, the second clamp handle as slider-crank mechanism crank part.Sliding block can be moved along strut lengths direction, and band caliper handle successively
The motion of connecting rod, the second clamp handle and the second binding clip, controls the folding of binding clip component.
Roller is provided between described sliding block and pole, described sliding block is moved by roller and is arranged on pole.Roller
Frictional force when sliding block is relatively moved with pole can be reduced, it is ensured that the reliability and stability of transmission process, and reduce portion
Abrasion between part, extends the service life of bolt clipper.
Slide block connecting rod is provided between described slider-crank mechanism and hydraulic drive mechanism, described hydraulic drive mechanism leads to
Slide block connecting rod is crossed to be connected with slider-crank mechanism.For the ease of carrying out cutting operation to aerial electric wire on the ground, or
Cutting operation is carried out to the electric wire in certain distance during work high above the ground, by setting slide block connecting rod, by the fortune of hydraulic drive mechanism
It is dynamic that slider-crank mechanism is transferred to by slide block connecting rod, the length of pole is extended, and then increased effective work of bolt clipper
Distance, is easy to implement remote-controlled operation.
Guide ring is arranged with described pole, pilot hole is offered along strut lengths direction on the guide ring, it is described
Slide block connecting rod passes through pilot hole, and is slidably connected with guide ring.Described guide ring is fixedly connected with pole.Due to slide block connecting rod
Length it is larger, and its length is far longer than its diameter, when end face is subject to responsive to axial force, is susceptible to flexural deformation, very
It is impaired to fractureing.Therefore, by setting guide ring, the side of slide block connecting rod is carried out spacing, prevents slide block connecting rod from bending,
Ensure the reliability of the course of work, while the direction of motion of slide block connecting rod can also be oriented to, can be long along pole
Degree direction moves back and forth, it is to avoid slide block connecting rod swings.
Described hydraulic drive mechanism includes that the hydraulic cylinder being arranged on pole is installed case, is arranged in hydraulic cylinder installation case
Hydraulic cylinder, the piston being slidably arranged in hydraulic cylinder and the hydraulically extensible bar being connected with piston drive, the hydraulically extensible bar
One end stretch out the outside of hydraulic cylinder, and be connected with slider-crank mechanism.Hydraulic oil band piston is axially past along hydraulic cylinder
Multiple motion, and slider-crank mechanism is transferred the motion to by hydraulically extensible bar.
The inner space of hydraulic cylinder is divided into the first grease chamber and the second grease chamber by described piston, is set on described hydraulic cylinder
There is the second oil pipe that the first oil pipe being connected with the first grease chamber is connected with the second grease chamber, described hydraulic control system is led to
Cross the first oil pipe and the second oil pipe is connected with the inside of hydraulic cylinder.When the hydraulic oil in hydraulic control system is through the first oil pipe stream
Enter in the first grease chamber, while the hydraulic oil in the second grease chamber is flowed out to when in hydraulic control system through the second oil pipe, hydraulically extensible
Bar is retracted in hydraulic cylinder, binding clip component closure；When the hydraulic oil in hydraulic control system flows into the second grease chamber through the second oil pipe
Interior, while the hydraulic oil in the first grease chamber is flowed out to when in hydraulic control system through the first oil pipe, hydraulically extensible bar is protruding,
Binding clip component is opened.
Described hydraulic control system includes oil storage tank and the fuel feed pump, the oil return pipe that are connected with oil storage tank respectively, institute
Be provided with three position four-way directional control valve between the hydraulic drive mechanism and fuel feed pump, oil return pipe stated, and by three position four-way directional control valve with
Oil storage tank is connected.Three position four-way directional control valve has three operating positions, can respectively be controlled by controlling the flow direction of hydraulic oil
Hydraulically extensible bar processed is stretched out, hydraulically extensible bar is static and hydraulically extensible bar is retracted, and adjusts process rapid sensitive, safe and reliable.
Used as preferred technical scheme, described three position four-way directional control valve is electromagnetic type three position four-way directional control valve.Electromagnetic type
The left and right two ends of three position four-way directional control valve are equipped with spring and relay, when relay is connected, attract change valve to be close to, and enter
And switch the operating position of reversal valve.Specific work process is as follows：
In the case of both sides relay is cold, three-position four-way hydraulic valve is in an intermediate position, i.e. the liquid of piston both sides
Force feed does not flow, and hydraulically extensible bar is not moved.When left side relay is connected, left side relay attracts 3-position 4-way
Hydraulic valve relay direction movement to the left, now the second oil pipe is oil inlet pipe, and the first oil pipe is flowline, in the work of hydraulic oil
Under, the oil pressure of piston both sides is different, and piston will promote hydraulically extensible bar protruding；When right side relay is connected, right side
Relay attracts the relay direction movement to the right of three-position four-way hydraulic valve, and now the first oil pipe is oil inlet pipe, and the second oil pipe is
Flowline, in the presence of hydraulic oil, the oil pressure of piston both sides is different, and piston will drive hydraulically extensible bar inwardly to retract.
Hydraulic pump and check valve are respectively equipped with described fuel feed pump.Hydraulic pump can provide the power of running of hydraulic power oil,
Check valve ensure that the flow direction of hydraulic oil, in preventing hydraulic oil from blowing back into hydraulic pump, damage hydraulic pump.
As preferred technical scheme, the fuel feeding branch pipe being connected with oil storage tank, the confession are additionally provided with described fuel feed pump
Oil inlet pipe is provided with overflow valve.Overflow valve can realize the overload protection to hydraulic control system and hydraulic drive mechanism, work as oil
When pressing through high, overflow valve is automatically opened up, and excessive hydraulic oil is discharged, it is ensured that the stabilization of oil pressure.
The rear end of described pole is provided with support, and the rear end for being easy to operator to grasp pole carries out construction operation.
The control button electrically connected with hydraulic control system is additionally provided with described pole, the control button is arranged on hydraulic pressure
Cylinder installs case and between support, by the on off operating mode of control button control relay, and then changes three position four-way directional control valve
Operating position.
Described pole and slider-crank mechanism is made by insulating materials.
The present invention in practical application, grasp the rear end of pole, place the wires in the first binding clip and the second binding clip it
Between, operational control button makes hydraulic control system control the motion of piston, and the binding clip of piston driving second is moved, and makes the second binding clip
The edge of a knife with the first binding clip is close to each other, and then electric wire is cut.
Compared with prior art, the invention has the characteristics that：
1) bolt clipper has larger length, and hydraulic control system is provided separately to mitigate pole load-bearing, energy with pole
It is enough to realize on the ground carrying out aerial electric wire cutting operation, or the electric wire in certain distance is cut during work high above the ground
Operation, without frequent shift position, operation is light, and shear strength is big, saves manpower, high working efficiency, good portability, safety
It is reliable；
2) slider-crank mechanism is set between hydraulic drive mechanism and binding clip component, and by slider-crank mechanism by liquid
The linear motion of hydraulically extensible bar is transferred in binding clip component in pressure drive mechanism, the second binding clip is rotated, to control pincers
The folding of head assembly, because sliding block can only be moved on pole, pole carries out radially spacing to sliding block, thus reduces hydraulic pressure and stretches
The radial load of contracting bar and piston, extends the service life of piston and hydraulic cylinder, and can connect with clamp handle by changing the second clamp handle
The relative length of bar, such as rotating rule of the second binding clip of control, the second binding clip of control first quick and back slow, had both been saved and closed in closure
The conjunction time, while can guarantee that when electric wire is sheared there is sufficiently large shearing force again, it is easy to easily cut electric wire；
3) good operating stability, good insulating can realize the cut-out to cable in the case where not powering off.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural representation of hydraulic control system in the present invention；
Fig. 3 is structural representation of the hydraulically extensible bar in stretching out under state in the present invention；
Fig. 4 is structural representation of the hydraulically extensible bar under retracted mode in the present invention；
Description of symbols in figure：
1-pole, the 2-the first binding clip, the 3-the second binding clip, the 4-the first clamp handle, the 5-the second clamp handle, 6-clamp handle connecting rod,
7-sliding block, 8-roller, 9-slide block connecting rod, 10-guide ring, 11-hydraulic cylinder install case, 12-hydraulic cylinder, 13-piston,
14-hydraulically extensible bar, the 15-the first grease chamber, the 16-the second grease chamber, the 17-the first oil pipe, the 18-the second oil pipe, 19-oil storage
Groove, 20-fuel feed pump, 21-oil return pipe, 22-three position four-way directional control valve, 23-hydraulic pump, 24-check valve.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment：
A kind of hydraulic wire clippers as shown in Figure 1, the bolt clipper includes pole 1, is arranged on the binding clip group of the front end of pole 1
Part and binding clip component drive connection slider-crank mechanism and slider-crank mechanism drive connection hydraulic drive mechanism and
The hydraulic control system being connected with hydraulic drive mechanism, under the regulation and control of hydraulic control system, hydraulic drive mechanism band successively
Dynamic slider-crank mechanism and binding clip component movement, the electric wire being placed in binding clip component are cut.
Wherein, binding clip component includes the first binding clip 2, the second binding clip 3 that are hinged, the first binding clip 2 and the second binding clip 3
Corresponding section is equipped with the edge of a knife.
Slider-crank mechanism includes that the first clamp handle 4 and the second binding clip 3 that are arranged between the first binding clip 2 and pole 1 are driven
Clamp handle connecting rod 6 and be arranged on along the movement of the length direction of pole 1 that second clamp handle 5 of connection and the rear end of the second clamp handle 5 are hinged
The sliding block 7 being connected on pole 1 and with the rear-end transmission of clamp handle connecting rod 6.Roller 8 is provided between sliding block 7 and pole 1, sliding block 7 passes through
The movement of roller 8 is arranged on pole 1.
Slide block connecting rod 9 is provided between slider-crank mechanism and hydraulic drive mechanism, hydraulic drive mechanism passes through slide block connecting rod 9
It is connected with slider-crank mechanism.Guide ring 10 is arranged with pole 1, is opened up along the length direction of pole 1 on the guide ring 10
There is pilot hole, slide block connecting rod 9 passes through pilot hole, and is slidably connected with guide ring 10.
Hydraulic drive mechanism includes that the hydraulic cylinder being arranged on pole 1 is installed case 11, is arranged in hydraulic cylinder installation case 11
Hydraulic cylinder 12, the piston 13 that is slidably arranged in hydraulic cylinder 12 and the hydraulically extensible bar 14 being connected with piston 13, should
The outside of hydraulic cylinder 12 is stretched out in one end of hydraulically extensible bar 14, and is connected with slider-crank mechanism.Piston 13 is by hydraulic cylinder
12 inner space is divided into the first grease chamber 15 and the second grease chamber 16, and hydraulic cylinder 12 is provided be connected with the first grease chamber 15
The second oil pipe 18 that one oil pipe 17 is connected with the second grease chamber 16, hydraulic control system passes through the first oil pipe 17 and the second oil pipe
18 are connected with the inside of hydraulic cylinder 12.
As shown in Fig. 2 hydraulic control system include oil storage tank 19 and be connected with oil storage tank 19 respectively fuel feed pump 20,
Oil return pipe 21, is provided with three position four-way directional control valve 22 between hydraulic drive mechanism and fuel feed pump 20, oil return pipe 21, and by three four
Logical reversal valve 22 is connected with oil storage tank 19.Hydraulic pump 23 and check valve 24 are respectively equipped with fuel feed pump 20.Such as Fig. 3, Fig. 4 institute
Show, three position four-way directional control valve 22 can respectively control stretching out or contracting for hydraulically extensible bar 14 by controlling the flow direction of hydraulic oil
Return.
Hydraulic wire clippers place the wires in the first binding clip 2 and second in practical application, grasp the rear end of pole 1
Between binding clip 3, operational control button makes hydraulic control system control the motion of piston 13, and piston 13 drives the second binding clip 3 to transport
It is dynamic, make the second binding clip 3 close to each other with the edge of a knife of the first binding clip 2, and then electric wire is cut.
The above-mentioned description to embodiment is to be understood that and use invention for ease of those skilled in the art.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel announcement of the invention, does not depart from improvement that scope made and modification all should be of the invention
Within protection domain.
Claims (10)
1. a kind of hydraulic wire clippers, it is characterised in that the bolt clipper includes pole (1), is arranged on the binding clip group of pole (1) front end
Part and binding clip component drive connection slider-crank mechanism and slider-crank mechanism drive connection hydraulic drive mechanism and
The hydraulic control system being connected with hydraulic drive mechanism, under the regulation and control of hydraulic control system, described hydraulic drive mechanism
Slider-crank mechanism and binding clip component movement are driven successively, and the electric wire being placed in binding clip component is cut.
2. a kind of hydraulic wire clippers according to claim 1, it is characterised in that described binding clip component includes being hinged
The first binding clip (2), the second binding clip (3), described the first binding clip (2) and the corresponding section of the second binding clip (3) are equipped with the edge of a knife.
3. a kind of hydraulic wire clippers according to claim 2, it is characterised in that described slider-crank mechanism includes setting
Second clamp handle (5) of the first clamp handle (4) between the first binding clip (2) and pole (1) and the second binding clip (3) drive connection and
Clamp handle connecting rod (6) and be arranged on pole (1) simultaneously along the movement of pole (1) length direction that the rear end of the second clamp handle (5) is hinged
The sliding block (7) being connected with the rear-end transmission of clamp handle connecting rod (6).
4. a kind of hydraulic wire clippers according to claim 3, it is characterised in that between described sliding block (7) and pole (1)
Roller (8) is provided with, described sliding block (7) is arranged on pole (1) by roller (8) movement.
5. a kind of hydraulic wire clippers according to claim 1, it is characterised in that described slider-crank mechanism drives with hydraulic pressure
Slide block connecting rod (9) is provided between motivation structure, described hydraulic drive mechanism is driven by slide block connecting rod (9) with slider-crank mechanism
Connection.
6. a kind of hydraulic wire clippers according to claim 5, it is characterised in that be arranged with guiding on described pole (1)
Ring (10), pilot hole is offered on the guide ring (10) along pole (1) length direction, and described slide block connecting rod (9) is through guiding
Hole, and be slidably connected with guide ring (10).
7. a kind of hydraulic wire clippers according to claim 1, it is characterised in that described hydraulic drive mechanism includes setting
Hydraulic cylinder on pole (1) is installed case (11), the hydraulic cylinder (12) being arranged in hydraulic cylinder installation case (11), is slidably arranged in
Piston (13) in hydraulic cylinder (12) and the hydraulically extensible bar (14) with piston (13) drive connection, the hydraulically extensible bar (14)
One end stretch out the outside of hydraulic cylinder (12), and be connected with slider-crank mechanism.
8. a kind of hydraulic wire clippers according to claim 7, it is characterised in that described piston (13) is by hydraulic cylinder (12)
Inner space be divided into the first grease chamber (15) and the second grease chamber (16), described hydraulic cylinder (12) is provided with and the first grease chamber
(15) the second oil pipe (18) that the first oil pipe (17) being connected is connected with the second grease chamber (16), described hydraulic control system
System is connected by the first oil pipe (17) and the second oil pipe (18) with the inside of hydraulic cylinder (12).
9. a kind of hydraulic wire clippers according to claim 1, it is characterised in that described hydraulic control system includes oil storage
Groove (19) and the fuel feed pump (20) being connected with oil storage tank (19) respectively, oil return pipe (21), described hydraulic drive mechanism with
Three position four-way directional control valve (22) is provided between fuel feed pump (20), oil return pipe (21), and by three position four-way directional control valve (22) and storage
Oil groove (19) is connected.
10. a kind of hydraulic wire clippers according to claim 9, it is characterised in that set respectively on described fuel feed pump (20)
There are hydraulic pump (23) and check valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135350.2A CN106694763A (en) | 2017-03-08 | 2017-03-08 | Hydraulic wire clippers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710135350.2A CN106694763A (en) | 2017-03-08 | 2017-03-08 | Hydraulic wire clippers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106694763A true CN106694763A (en) | 2017-05-24 |
Family
ID=58918013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710135350.2A Pending CN106694763A (en) | 2017-03-08 | 2017-03-08 | Hydraulic wire clippers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694763A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270941A (en) * | 2018-03-13 | 2019-09-24 | 深圳大学 | A kind of telescopic multifunctional digital electric hydraulic pincers |
| CN111052525A (en) * | 2017-09-01 | 2020-04-21 | 大原电机株式会社 | Manual hydraulic multifunctional ultrahigh-voltage insulated gear clamp rod for live working and indirect live construction method using clamp rod |
| CN112180208A (en) * | 2020-09-11 | 2021-01-05 | 国网山东省电力公司济南市济阳区供电公司 | Live-line wire-breaking operation device for power system |
| CN114102459A (en) * | 2021-11-01 | 2022-03-01 | 国网浙江省电力有限公司金华供电公司 | Electric clamping rod convenient for clamping wire |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111052525A (en) * | 2017-09-01 | 2020-04-21 | 大原电机株式会社 | Manual hydraulic multifunctional ultrahigh-voltage insulated gear clamp rod for live working and indirect live construction method using clamp rod |
| CN111052525B (en) * | 2017-09-01 | 2021-06-22 | 大原电机株式会社 | Manual hydraulic multifunctional ultrahigh-voltage insulated gear clamp rod for live working and indirect live construction method using clamp rod |
| CN110270941A (en) * | 2018-03-13 | 2019-09-24 | 深圳大学 | A kind of telescopic multifunctional digital electric hydraulic pincers |
| CN112180208A (en) * | 2020-09-11 | 2021-01-05 | 国网山东省电力公司济南市济阳区供电公司 | Live-line wire-breaking operation device for power system |
| CN114102459A (en) * | 2021-11-01 | 2022-03-01 | 国网浙江省电力有限公司金华供电公司 | Electric clamping rod convenient for clamping wire |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |