CN110491717A - A kind of outdoor high-voltage alternating-current vacuum breaker - Google Patents
A kind of outdoor high-voltage alternating-current vacuum breaker Download PDFInfo
- Publication number
- CN110491717A CN110491717A CN201910657552.2A CN201910657552A CN110491717A CN 110491717 A CN110491717 A CN 110491717A CN 201910657552 A CN201910657552 A CN 201910657552A CN 110491717 A CN110491717 A CN 110491717A
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- shell
- hoisting
- hoisting board
- voltage alternating
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
Abstract
The invention discloses a kind of outdoor high-voltage alternating-current vacuum breakers, including shell, it is installed on the boom hoisting of case top, the boom hoisting includes hoisting board, it is fixed on hoisting board one end and is detachably fixed the first mounting plate of connection with shell and sliding is installed on the second mounting plate of the hoisting board other end, it is provided with the second mounting plate of driving on the hoisting board close to the first mounting plate and case top or drives the second mounting plate far from the first mounting plate so that case top, which is detached from, is fixed the driving mechanism of effect to be fixedly clamped, according to the circuit breaker housing of different width specifications, adjust the spacing between the first mounting plate and the second mounting plate, first mounting plate and the second mounting plate clamping body, boom hoisting is set to be fixed on case top, present invention may apply to the liftings of the breaker of different width specifications, with stronger applicability, more accord with Close demand in the market.
Description
Technical field
The present invention relates to a kind of high-tension current arc-control devices, more specifically, it is disconnected to be related to a kind of outdoor high-voltage alternating current vacuum
Road device.
Background technique
High-pressure vacuum breaker is the main electric control appliance of electric substation, the characteristic with arc extinguishing, when system is normally transported
When row, it can be switched off and on zero load and the load current of route and various electrical equipments；When system jam, it and after
Electric prospection cooperation, the rapid disengagement failure electric current of energy, to prevent expansion accident range.
Currently, in the prior art, in the Chinese patent document that Authorization Notice No. is CN203910644U, describing
A kind of novel vacuum circuit breaker, including shell, the vacuum interrupter for disconnecting and closing for circuit, driving vacuum interrupter is disconnected
With the operating mechanism closed, housing upper surface is equipped with boom hoisting, and boom hoisting includes hoisting board, connecting plate, fixed cross-arm, rises
Hanger bolt component, lifting plate end face are equipped with two fixed plates being firmly connected with it, and two fixed plates are arranged at intervals on hoisting board one
End face is simultaneously fixedly connected with the casing, and connecting plate is arranged on a hoisting board end face opposite with fixed plate, and fixed cross-arm is placed in company
Above fishplate bar, hanging bolt component is connected and fixed cross-arm and connecting plate, and hanging bolt component is including two bolts and for connecting
The nut of fixed cross-arm, two bolt spacings are arranged on connecting plate, and fixed cross-arm is set on two bolts and is secured with nuts, according to
Actual conditions adjust fixed cross-arm at a distance from connecting plate, and boom hoisting is realized by fixed cross-arm to high pressure vacuum open circuit
Device installation is fixed.
Since two fixed plates are all fixedly connected with lifting plate end face, the spacing between two fixed plates is one
Fixed, boom hoisting is also the length and width according to case top and customized, and occurs on the market now more and more various
The specification of the high-pressure vacuum breaker of specification, their case top is different, some width are wider, some width are narrower, and real
The lifting of these existing high-pressure vacuum breakers, is to be gone to design new boom hoisting according to specific product specification, is better installed
On shell, but cost of idleness unusual in this way, the time is expended, therefore, on high-pressure vacuum breaker needing one kind can fit
Answer the boom hoisting of specification at the top of different housings.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of outdoor high-voltage alternating-current vacuum breaker, adjustment
Spacing between first mounting plate and the second mounting plate, the breaker for making the present invention be suitable for different width specifications lift by crane, have more
Strong applicability more meets demand in the market.
To achieve the above object, the present invention provides the following technical scheme that a kind of outdoor high-voltage alternating-current vacuum breaker, packet
The boom hoisting for including shell, being installed on case top, the boom hoisting include hoisting board, are fixed on hoisting board one end and and shell
Body is detachably fixed the first mounting plate of connection and slides the second mounting plate for being installed on the hoisting board other end, the hoisting board
On be provided with the second mounting plate of driving close to the first mounting plate be fixedly clamped case top or the second mounting plate of driving far from the
One mounting plate is so that case top is detached from the driving mechanism for the effect that is fixed.
By using above-mentioned technical proposal, driving mechanism drives the second mounting plate close or separate first mounting plate, from
And the spacing between two pieces of mounting plates is adjusted, the first mounting plate and the second mounting plate adjusted are fitted in the opposite sides of shell
On face, the first mounting plate is detachably secured on shell, and the second mounting plate and the first mounting plate clamping engagement, makes entirely to lift by crane
It is fixed up between device and shell, then can entire breaker be transported through and be installed movement, according to different width specifications
Circuit breaker housing, adjust the spacing between the first mounting plate and the second mounting plate, and with driving mechanism clamping body, make to lift by crane
Device is fixed on case top, and the boom hoisting of the invention can be adapted for the breaker lifting of different width specifications, tool
There is stronger applicability, more meets demand in the market.
The present invention is further arranged to: the surface of the shell is plane, and the hoisting board bottom erects and is provided with more
Support balance element isometric and inconsistent with case top, the more support balance elements are arranged along the length direction of hoisting board
Column distribution.
By using above-mentioned technical proposal, boom hoisting move down be installed to shell during, support balance element
It is inconsistent with case top surface, due to being equipped with driving mechanism on hoisting board, it will lead to the both ends weight of entire hoisting board not
Balance, causes influence to installation, therefore, by the way that multiple support balance elements are arranged, in more support balance elements and on shell
When surface contradicts, hoisting board is parallel with housing upper surface at this time, and boom hoisting is that balance is mounted on shell, the program
Be boom hoisting installation enhanced convenience, securely, the balance of installation is guaranteed.
The present invention is further arranged to: the bottom of the support balance element is provided with suction hole, is arranged on the hoisting board
There is control suction hole that the source of suction of surface of shell is sucked.
By using above-mentioned technical proposal, hoisting board is sucked by the suction hole of support balance element in source of suction work, thus
Make to fix between hoisting board and the upper surface of shell, then with the two sides for closing the first mounting plate, the second mounting plate clamping body, increases
Area fixed between shell and boom hoisting is added, has made to be more firmly mounted between boom hoisting and shell, the present invention is made to exist
It is stronger in hoisting process, stable.
The present invention is further arranged to: the bottom end side of each support balance element is provided with inconsistent with case top
Touch switch, the bottom surface of the touch switch and it is described support balance element bottom surface set on same plane, the hoisting board
It is equipped with and is triggered by touch switch to control the circuit controller of driving mechanism work.
By using above-mentioned technical proposal, since the bottom surface of touch switch and support balance element is in same plane, support is flat
After weighing apparatus part and case top are inconsistent, touch switch transmits the electric signal of triggering also with case top to contradicting and being triggered
Driving mechanism work is controlled to circuit controller, and by circuit controller, driving mechanism drives the second mounting plate close to first
The setting of mounting plate, touch switch and circuit controller realizes the second mounting plate and automatically moves, and improves of the invention automatic
Change level, reduces human input.
The present invention is further arranged to: the delay that the circuit controller is electrically connected with control driving mechanism delayed startup is fixed
When device.
By using above-mentioned technical proposal, the control signal of circuit controller can be delayed and be transmitted to driving by back off timer
In mechanism, because manually also needing to elapse the first mounting plate, making the first installation after support balance element is contradicted to surface of shell
Plate is bonded with housing side, and back off timer passes to signal is controlled in driving mechanism at this time, and driving mechanisms control second is installed
The movement of plate, back off timer can provide buffer time, facilitate worker by one of the first mounting plate and shell on boom hoisting
Fitting is realized in side surface, carries out convenient for the installment work below between boom hoisting and shell.
The present invention is further arranged to: the circuit controller and the back off timer are installed on hoisting board close to first
One end of mounting plate, the driving mechanism are installed on hoisting board close to one end of the second mounting plate.
By using above-mentioned technical proposal, circuit controller and back off timer are arranged in hoisting board one end, driving mechanism
The other end of hoisting board is set, can make to lift by crane the gravity relative equilibrium that board ends are born, is not in the inclination of hoisting board one end
Serious phenomenon, goes on smoothly installation process, is easily installed.
The present invention is further arranged to: positioning region, one side surface of the shell setting are provided on second mounting plate
There is the positioning groove with positioning region location fit.
By using above-mentioned technical proposal, be bonded after the second mounting plate is mobile with a side surface of shell, positioning region with calmly
Position groove location fit, realize the second mounting plate and precisely fit together with one side surface of shell, improve the second mounting plate and
The precision installed between shell, and positioning region setting is in the second mounting plate, increase the second mounting plate and housing side it
Between forced area, increase the lifting force of the second mounting plate.
The present invention is further arranged to: the first bolt is provided on first mounting plate, the shell side is provided with
With the first threaded hole of the first bolt thread cooperation.
By using above-mentioned technical proposal, the first bolt and the cooperation of the first threaded hole make the one of the first mounting plate and shell
Side surface is fixedly connected, and the fixed form of threaded connection is than stronger, and fixation is not easily disconnected between the first mounting plate and shell, is risen
It is good to hang stability.
The present invention is further arranged to: the second bolt is provided on second mounting plate, the shell side is provided with
With the second threaded hole of the second bolt thread cooperation.
By using above-mentioned technical proposal, at the top of the second mounting plate cooperation the first mounting plate clamping body after, then by second
Mounting plate is fixed in housing side by the second bolt thread, so that is fixed more between the second mounting plate and housing side
What is added is secured.
The present invention is further arranged to: the driving mechanism includes the ball screw assembly, being installed on hoisting board, driving rolling
The driving motor of ballscrew subtask, second mounting plate are fixedly connected with the Slipper on ball screw assembly,.
By using above-mentioned technical proposal, ball screw assembly, drives the second mounting plate separate or close first mounting plate,
Driving motor drives ball-screw subtask, makes the movement of the second mounting plate more stable, efficient using ball screw assembly, real
Now preferably clamp purpose.
In conclusion the invention has the following advantages:
1. according to the circuit breaker housing of different width specifications, the spacing between the first mounting plate and the second mounting plate is adjusted, first
Mounting plate and the second mounting plate clamping body, make boom hoisting be fixed on case top, present invention may apply to different in width
The breaker of specification lifts by crane, and has stronger applicability, more meets demand in the market；
2. boom hoisting is during being installed to shell, by supporting balance element that boom hoisting is enabled smoothly to fall on very much
On shell, so that whole installation process has preferable balance, installation effect is preferable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram one of outdoor high-voltage alternating-current vacuum breaker；
Fig. 2 is a kind of structural schematic diagram two of outdoor high-voltage alternating-current vacuum breaker, for showing driving mechanism；
Fig. 3 is a kind of perspective view of the explosion of outdoor high-voltage alternating-current vacuum breaker, for showing the knot of positioning region, the first threaded hole
Structure position；
Fig. 4 is a kind of structural schematic diagram three of outdoor high-voltage alternating-current vacuum breaker, for showing the structure bit of support balance element
It sets；
Fig. 5 is a kind of structural schematic diagram of boom hoisting in outdoor high-voltage alternating-current vacuum breaker, for showing the position of suction hole
Set structure.
Appended drawing reference: 1, shell；2, boom hoisting；2.1, hoisting board；2.2, the first mounting plate；2.3, the second mounting plate；
3, the first bolt；4, circuit controller；5, back off timer；6, touch switch；7, the second bolt；8, the second threaded hole；9, fixed
Position groove；10, ball screw assembly,；11, the first threaded hole；12, positioning region；13, balance element is supported；14, driving motor；15, it drives
Motivation structure；16, suction hole.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: a kind of outdoor high-voltage alternating-current vacuum breaker referring to Figures 1 and 2, including shell 1, is installed on shell 1
The boom hoisting 2 at top, the upper surface of shell 1 are plane；Boom hoisting 2 includes hoisting board 2.1, is fixed on hoisting board 2.1 1
First mounting plate 2.2 at end and sliding are installed on the second mounting plate 2.3 of 2.1 other end of hoisting board, are arranged on hoisting board 2.1
There is a driving mechanism 15, driving mechanism 15 drives the second mounting plate 2.3 to slide on the length direction of hoisting board 2.1, to drive the
Two mounting plates 2.3 are close or far from the first mounting plate 2.2；
In conjunction with Fig. 4, driving mechanism 15 includes ball screw assembly, 10, the driving motor 14 being mounted on hoisting board 2.1, driving motor
14 connect with ball screw assembly, 10, and driving motor 14 drives the Slipper on ball screw assembly, 10 along hoisting board 2.1
It is moved on length direction, the Slipper on ball screw assembly, 10 is fixedly connected with the top of the second mounting plate 2.3, and sliding block drives
Second mounting plate 2.3 along the length direction of hoisting board 2.1 close to or far from the first mounting plate 2.2, the first mounting plate 2.2 with
Second mounting plate 2.3 is matched for clamping tightly the upper end of shell 1.
Referring to Fig. 2 and Fig. 5, the bottom of hoisting board 2.1 is provided with more setting and isometric support balance elements 13 downwards, branch
The lower end for supportting balance element 13 and 1 top surface of shell are to conflict, and in the present embodiment, support balance element 13 is support balancing pole, branch
The bottom of support balancing pole is provided with along the suction hole 16 for supporting balancing pole axis to extend upward through support balancing pole, hoisting board 2.1
Portion upper surface is provided with source of suction (not shown), and source of suction uses asepwirator pump, and asepwirator pump is connected by pipeline and suction hole 16
Logical, the surface of shell 1 is sucked by the suction hole 16 on support balance element 13 for air-breathing pump work.
Referring to Fig. 2, the quantity of support balance element 13 is 3, and the arranged distribution along the length direction of hoisting board 2.1, often
The bottom sides of a piece support balance element 13 are provided with touch switch 6, under the lower surface and support balance element 13 of touch switch 6
Surface is in same plane, when the upper surface of the lower surface and shell 1 that support balance element 13 is inconsistent, the following table of touch switch 6
Face is also inconsistent with the upper surface of shell 1, and touch switch 6 is triggered；It is provided on hoisting board 2.1 and is electrically connected with touch switch 6
Circuit controller 4, touch switch 6 is electrically connected with circuit controller 4, when touch switch 6 and 1 top surface of shell are inconsistent,
Touch switch 6 is triggered, and is given to 4 electric signal of circuit controller, and circuit controller 4 is electrically connected with driving motor 14, circuit control
Control driving motor 14 works after device 4 receives electric signal, and driving motor 14 drives the Slipper sliding on ball screw assembly, 10；
Circuit controller 4 and back off timer 5 are mounted on hoisting board 2.1 close to one end upper surface of the first mounting plate 2.2, driving
Mechanism 15 is installed on hoisting board 2.1 close to one end upper surface of the second mounting plate 2.3, circuit controller 4 and back off timer 5,
Driving motor 14 is connected, the control signal that circuit controller 4 issues, and by back off timer 5, back off timer 5 is by the control
Signal delay sends driving motor 14 to after a certain period of time, and driving motor 14 is started to work after receiving control signal.
Referring to Fig. 2 and Fig. 3, it is provided with positioning region 12 on the second surface of the mounting plate 2.3 towards shell 1, positioning region 12 is
2.3 surface of the second mounting plate is protruded from, shape is hemispherical locating convex block, and the side of shell 1 is provided with positioning groove 9, fixed
Position groove 9 and locating convex block location fit；
The first bolt 3 is provided on first mounting plate 2.2, the side of shell 1 is provided with the first threaded hole 11, and the first bolt 3 is worn
It is threadedly engaged after crossing the first mounting plate 2.2 with the first threaded hole 11, the second bolt 7, shell 1 is provided on the second mounting plate 2.3
The other side be provided with the second threaded hole 8, the second bolt 7 is threadedly engaged after passing through the second mounting plate 2.3 with the second threaded hole 8.
Working principle process of the present invention is as follows: first that boom hoisting 2 is mobile when boom hoisting 2 to be installed on shell 1
To the surface of shell 1, and 2 level of boom hoisting is moved down, the upper surface of the lower end and shell 1 that support balance element 13 is supported
Touching balances boom hoisting 2, and the first mounting plate 2.2 and the second mounting plate 2.3 are not in situation about lowing while height, then
The first mounting plate 2.2 of artificial passage, is bonded the first mounting plate 2.2 with the side of shell 1, in support balance element 13 and shell 1
While surface contradicts, trigger switch is triggered, and electric signal is passed to circuit controller 4, the output control of circuit controller 4 is driven
The command signal that dynamic motor 14 works, the command signal are then passed to after some period of time by back off timer 5
Driving motor 14, driving motor 14 drive the Slipper on ball screw assembly, 10 to slide along the length direction of hoisting board 2.1,
Second mounting plate 2.3 is bonded close to the first mounting plate 2.2, and with the another side of shell 1, at this point, positioning region 12 and positioning are recessed
9 location fit of slot, at this point, the first mounting plate 2.2 and the second mounting plate 2.3 are matched for clamping tightly fixed shell 1；
By the first bolt 3 and the first threaded hole 11, the side of the first mounting plate 2.2 and shell 1 is fixed, the second bolt is passed through
7 and second threaded hole 8, the another side of the second mounting plate 2.3 and shell 1 is fixed, source of suction work passes through support balance element
Suction hole 16 on 13 is sucked the upper surface of shell 1, realize the first mounting plate 2.2, the second mounting plate 2.3, hoisting board 2.1 with
1 surface of shell, which is realized, to be fixed, and then through boom hoisting 2, can be played entire breaker and be lifted, transport and install to required
Place to be mounted.
Present embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (10)
1. a kind of outdoor high-voltage alternating-current vacuum breaker, including shell (1), the boom hoisting (2) being installed at the top of shell (1),
It is characterized by: the boom hoisting (2) includes hoisting board (2.1), is fixed on hoisting board (2.1) one end and can with shell (1)
It dismantles the first mounting plate (2.2) being fixedly connected and sliding is installed on the second mounting plate of hoisting board (2.1) other end
(2.3), driving the second mounting plate (2.3) is provided on the hoisting board (2.1) close to the first mounting plate (2.2) to be fixedly clamped
At the top of shell (1) or driving the second mounting plate (2.3) is fixed far from the first mounting plate (2.2) so as to be detached from the top of shell (1)
The driving mechanism (15) of effect.
2. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 1, it is characterised in that: the shell (1)
Surface is plane, and hoisting board (2.1) bottom, which is erect, is provided with more isometric and inconsistent with shell (1) top supports
Balance element (13), more support balance element (13) arranged distributions along the length direction of hoisting board (2.1).
3. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 2, it is characterised in that: the support balance element
(13) bottom is provided with suction hole (16), control suction hole (16) is provided on the hoisting board (2.1), shell (1) table is sucked
The source of suction in face.
4. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 2, it is characterised in that: each support is flat
The bottom end side of weighing apparatus part (13) is provided with and touch switch (6) inconsistent at the top of shell (1), the bottom of the touch switch (6)
Face and the bottom surface of support balance element (13) are provided with touch switch (6) on same plane, the hoisting board (2.1)
Triggering is to control the circuit controller (4) that driving mechanism (15) work.
5. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 4, it is characterised in that: the circuit controller
(4) it is electrically connected with the back off timer (5) of control driving mechanism (15) delayed startup.
6. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 5, it is characterised in that: the circuit controller
(4) and the back off timer (5) is installed on the one end of hoisting board (2.1) close to the first mounting plate (2.2), the driving mechanism
(15) it is installed on the one end of hoisting board (2.1) close to the second mounting plate (2.3).
7. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 1, it is characterised in that: second mounting plate
(2.3) it is provided on positioning region (12), (1) one side surface of shell is provided with recessed with the positioning of positioning region (12) location fit
Slot (9).
8. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 1, it is characterised in that: first mounting plate
(2.2) it is provided on the first bolt (3), shell (1) side is provided with the first screw thread being threadedly engaged with the first bolt (3)
Hole (11).
9. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 1, it is characterised in that: second mounting plate
(2.3) it is provided on the second bolt (7), shell (1) side is provided with the second screw thread being threadedly engaged with the second bolt (7)
Hole (8).
10. a kind of outdoor high-voltage alternating-current vacuum breaker according to claim 1, it is characterised in that: the driving mechanism
It (15) include the driving motor of the ball screw assembly, (10) being installed on hoisting board (2.1), driving ball screw assembly, (10) work
(14), second mounting plate (2.3) is fixedly connected with the Slipper on ball screw assembly, (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657552.2A CN110491717B (en) | 2019-07-19 | 2019-07-19 | Outdoor high-voltage alternating-current vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657552.2A CN110491717B (en) | 2019-07-19 | 2019-07-19 | Outdoor high-voltage alternating-current vacuum circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110491717A true CN110491717A (en) | 2019-11-22 |
| CN110491717B CN110491717B (en) | 2021-06-15 |
Family
ID=68547545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657552.2A Active CN110491717B (en) | 2019-07-19 | 2019-07-19 | Outdoor high-voltage alternating-current vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110491717B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173443A1 (en) * | 2003-03-07 | 2004-09-09 | Michael Abrahamsen | Integrated circuit breaker levering in and hoist crank tool |
| KR100718497B1 (en) * | 2006-04-25 | 2007-05-16 | 동우전기공업(주) | Polymer insulation breaker switch for overhead |
| CN203277205U (en) * | 2013-05-22 | 2013-11-06 | 浙江伏尔特电器有限公司 | High-voltage outdoor intelligent demarcation vacuum circuit breaker |
| CN203910644U (en) * | 2014-01-14 | 2014-10-29 | 浙江兴田电气有限公司 | Novel vacuum circuit breaker |
| CN207078909U (en) * | 2017-08-08 | 2018-03-09 | 安徽合力股份有限公司 | A kind of adjustable lifting appliance for being used to carry more specification moulds |
| CN207217394U (en) * | 2017-10-16 | 2018-04-10 | 浙江领方电气有限公司 | A kind of outdoor vacuum primary cut-out |
| CN208061945U (en) * | 2018-04-25 | 2018-11-06 | 浙江康格电气有限公司 | A kind of vacuum circuit breaker |
-
2019
- 2019-07-19 CN CN201910657552.2A patent/CN110491717B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040173443A1 (en) * | 2003-03-07 | 2004-09-09 | Michael Abrahamsen | Integrated circuit breaker levering in and hoist crank tool |
| KR100718497B1 (en) * | 2006-04-25 | 2007-05-16 | 동우전기공업(주) | Polymer insulation breaker switch for overhead |
| CN203277205U (en) * | 2013-05-22 | 2013-11-06 | 浙江伏尔特电器有限公司 | High-voltage outdoor intelligent demarcation vacuum circuit breaker |
| CN203910644U (en) * | 2014-01-14 | 2014-10-29 | 浙江兴田电气有限公司 | Novel vacuum circuit breaker |
| CN207078909U (en) * | 2017-08-08 | 2018-03-09 | 安徽合力股份有限公司 | A kind of adjustable lifting appliance for being used to carry more specification moulds |
| CN207217394U (en) * | 2017-10-16 | 2018-04-10 | 浙江领方电气有限公司 | A kind of outdoor vacuum primary cut-out |
| CN208061945U (en) * | 2018-04-25 | 2018-11-06 | 浙江康格电气有限公司 | A kind of vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110491717B (en) | 2021-06-15 |
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