CN106409543B - Single armed stretch clamp type disconnecting switch auxiliary switching-off device - Google Patents
Single armed stretch clamp type disconnecting switch auxiliary switching-off device Download PDFInfo
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- CN106409543B CN106409543B CN201611011860.0A CN201611011860A CN106409543B CN 106409543 B CN106409543 B CN 106409543B CN 201611011860 A CN201611011860 A CN 201611011860A CN 106409543 B CN106409543 B CN 106409543B
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- disconnecting switch
- driving cylinder
- single armed
- clamp type
- connecting flange
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- 230000007246 mechanism Effects 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000008450 motivation Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000007480 spreading Effects 0.000 abstract description 6
- 230000003068 static effect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a kind of single armed stretch clamp type disconnecting switch auxiliary switching-off device, base including being equiped with driving cylinder, upper plate is fixed with the output shaft of driving cylinder, base is equipped with slide bar, upper plate is arranged and slides and is arranged on slide bar, it is equipped with and upper plate lower roof plate positioned opposite positioned at the root of slide bar on base, the lower part of base is equipped with two insulating bars, the upper end of insulating bar is equipped with upper connecting flange, lower end is equipped with lower connecting flange, inner tube is equipped with insulating bar, upper connecting flange is connected by inner tube with lower connecting flange, the upper connecting flange of two insulating bars is connected by the first connecting tube with the rod chamber and rodless cavity of driving cylinder respectively.The present invention can single armed stretch clamp type disconnecting switch mandril clamping stagnation cannot reset, can be with spreading or open-top clamp in the case that moving contact cannot be opened, moving contact clamp is separated realization auxiliary separating brake with static contact conducting rod, have the advantages that operating process is simple, convenient to use, security reliability is high.
Description
Technical field
The present invention relates to switch aid in switching-off device, and in particular to a kind of single armed stretch clamp type disconnecting switch auxiliary separating brake
Device.
Background technology
Single armed stretch clamp type disconnecting switch with its it is advanced design and excellent performance obtained in electric system extensively
General application, its main representative model GW16/17, GW10/11, SPVT etc..500kV substation isolating-switch common at present
In, the disconnecting switch of the structure is large number of, accounts for more than 50%, majority has been run more than 10 years.Its point of the disconnecting switch of the structure
Making process can be decomposed into two major parts of folding movement and clamping movement.Relative to plug in construction, such is kept apart
It is higher to close failure rate, seriously affects the safe operation of equipment, power grid.According to statistics, in all kinds of failures, bulk mechanical failure accounts for
Institute faulty more than 70%.In terms of on-site maintenance situation, main failure is grouped as resetting spring corrosion, upper conductive arm clamps
The failures such as mandril clamping stagnation is refused point, transmission parts bite, divide-shut brake are not in place.
Over the past two years, multiple substations recurred GW16/17 types, went out during Areva Ta SPVT type disconnecting switch separating brakes
Clamping stagnation, upper conductive arm mandril tripping are now driven, separating brake failure failure caused by clamp cannot be opened.Chief reason mainly have with
Under several aspects：First, water inlet water storage for a long time in upper conductive arm, causes the sliding friction position corrosion of mandril and axle sleeve, causes to rub
Power increase is wiped, resetting spring cannot return it to, and clamp type moving contact cannot be opened, and cause to refuse point；Second, resetting spring material becomes rusty
Alteration shape, it is impossible to normally provide corresponding reset force for mandril, cause clamp type moving contact to open；Third, moving contact is driven
Part is designed complicated, and as Areva Ta SPVT type disconnecting switch moving contacts have mousing-hook design, transmission parts are more, after longtime running
Corrosion clamping stagnation, moving contact and anticreep ditch cannot be opened normally during separating brake.In addition most disconnecting switch longtime runnings did not carried out
Lock operates, and many fault conditions are the coefficient results of these three reasons.When occurring above-mentioned failure during grid switching operation, need
Power failure isolation processing is carried out to faulty equipment, after power failure personnel's working at height break moving contact into two with one's hands manually and realize separating brake, most cases
Under, hand breaks division into two with one's hands, and disconnecting switch can be operated normally in division several times.But faulty equipment power failure isolation processes are more complicated,
If bus isolating switch failure, then need to empty whole busbar and have a power failure, could realize isolated fault disconnecting switch, grid switching operation
Workload and operating risk are very big.Special circumstances, if other disconnecting switch cannot be real there are failure, grid switching operation on the busbar
It is existing；Furthermore if another bus isolating switch at other XX intervals is unable to in-place closing, even if fault bus can be emptied, also
Need to stop XX intervals could realize Fault Isolation, increase power failure range, influence power supply reliability and system is stablized.
The content of the invention
The technical problem to be solved in the present invention：For the above problem of the prior art, there is provided one kind can stretch in single armed
It can be made in the case that the mandril clamping stagnation of clamp type disconnecting switch cannot reset, moving contact cannot be opened with spreading or open-top clamp
Moving contact clamp separates realization auxiliary separating brake with static contact conducting rod, and operating process is simple, convenient to use, security reliability
High single armed stretch clamp type disconnecting switch auxiliary switching-off device.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of single armed stretches clamp type disconnecting switch auxiliary switching-off device, including is equiped with the base of driving cylinder, the drive
Upper plate is fixed with the output shaft of dynamic cylinder, the base is equipped with slide bar, and the upper plate, which is arranged and slides, is arranged in slide bar
On, it is equipped with the base positioned at the root of slide bar and upper plate lower roof plate positioned opposite, the lower part of the base is equipped with two
Root insulating bar, the upper end of the insulating bar is equipped with connecting flange, lower end is equipped with lower connecting flange, in the insulating bar
Equipped with inner tube, the upper connecting flange is connected by inner tube with lower connecting flange, the upper connecting flange point of two insulating bars
It is not connected by the first connecting tube with the rod chamber and rodless cavity of driving cylinder.
Preferably, the quantity of the slide bar is two, and the output shaft of the driving cylinder is arranged between two slide bars.
Preferably, the top of an insulating bar in two insulating bars is equipped with rotating mechanism, and the top is equipped with and turns
The insulating bar of motivation structure is installed in the lower part of base by rotating mechanism.
Preferably, the rotating mechanism is multi-directional ball rotating mechanism.
Preferably, the side on the upper plate by lower roof plate is equipped with least one the first reinforcing ribs, described first plus
The thickness of output shaft side of the thickness of strengthening tendons from the end of upper plate to driving cylinder gradually increases；Top top on the lower roof plate
The side of plate is equipped with least one the second reinforcing ribs, and the thickness of second reinforcing rib is from the end of lower roof plate to driving cylinder
The thickness of output shaft side gradually increases.
Preferably, the driving cylinder is cylinder.
Preferably, present invention additionally comprises pressure bucket is built, the pressure bucket storage inside of building has compressed air, and the pressure bucket of building passes through
Second connecting tube is connected with the lower connecting flange of one in two insulating bars.
The present invention single armed stretch clamp type disconnecting switch auxiliary switching-off device tool have the advantage that：
1st, the present invention includes reciprocating upper plate, and the lower roof plate positioned opposite with upper plate, with insulation pole
The upper plate of the auxiliary switching-off device of the present invention and lower roof plate are positioned among disconnecting switch clamp type moving contact, and pass through drive
Dynamic cylinder driving upper plate moves back and forth, can single armed stretch clamp type disconnecting switch mandril clamping stagnation cannot reset, moving contact
In the case of cannot opening, by upper plate and lower roof plate spreading or open-top clamp moving contact clamp can be made to be led with static contact
Auxiliary separating brake is realized in electric pole separation, has the advantages that operating process is simple, convenient to use, security reliability is high.
2nd, the present invention includes being equiped with the base of driving cylinder, is fixed with upper plate on the output shaft of driving cylinder, is set on base
There is slide bar, upper plate is arranged and slides and is arranged on slide bar, and apparatus structure is simple, promotes upper plate to realize reciprocal fortune by driving cylinder
Dynamic, transmission parts are few, and performance is stablized.
3rd, insulating bar of the invention has the function that two aspects, first, being filled the auxiliary separating brake of the present invention using insulating bar
Put at the powered dynamic/static contact for sending to single armed clamp type disconnecting switch of stretching, second, insulating bar can be used as working media（Compression is empty
Gas or hydraulic oil）Pipeline, that realizes driving cylinder builds pressure energy storage, promotes upper plate to realize that single armed stretches clamp type disconnecting switch
Aid in separating brake.
4th, all kinds of common single armeds be present invention can be suitably applied to and stretch during clamp type disconnecting switch is run and cannot reliably separating brake lack
Disposal is fallen into, such as represents model GW16/17, GW10/11, SPVT etc..
Brief description of the drawings
Fig. 1 is the main structure diagram of the embodiment of the present invention.
Fig. 2 is the overlooking the structure diagram of the embodiment of the present invention（Pressure bucket and the second connecting tube are built in omission）.
Marginal data：1st, driving cylinder；11st, upper plate；111st, the first reinforcing rib；2nd, base；21st, slide bar；22nd, lower roof plate；
221st, the second reinforcing rib；3rd, insulating bar；31st, upper connecting flange；32nd, lower connecting flange；33rd, the first connecting tube；34th, rotating machine
Structure；4th, pressure bucket is built；41st, the second connecting tube.
Embodiment
As depicted in figs. 1 and 2, the single armed of the present embodiment stretches clamp type disconnecting switch auxiliary switching-off device including being equiped with
The base 2 of driving cylinder 1, is fixed with upper plate 11 on the output shaft of driving cylinder 1, base 2 is equipped with slide bar 21, and upper plate 11 is arranged
And slide be arranged on slide bar 21, on base 2 positioned at slide bar 21 root be equipped with and the lower roof plate 22 positioned opposite of upper plate 11,
The lower part of base 2 is equipped with two insulating bars 3, and the upper end of insulating bar 3 is equipped with connecting flange 31, lower end is equipped with lower connection method
Orchid 32, is equipped with inner tube in insulating bar 3, and upper connecting flange 31 is connected by inner tube with lower connecting flange 32, two insulating bars 3
Upper connecting flange 31 is connected by the first connecting tube 33 with the rod chamber and rodless cavity of driving cylinder 1 respectively.Referring to Fig. 1 and Fig. 2,
Driving cylinder 1 is fixed on base 2 by bolt in the present embodiment, and the installation site of bolt is the rear lateral portion of base 2.When logical
Cross rod chamber of first connecting tube 33 to driving cylinder 1（Left side）Inject working media（Compressed air or hydraulic oil）When, then drive
The piston rod of cylinder 1 Slideslip to the right, so as to drive the Slideslip to the right of upper plate 11 so that between upper plate 11, lower roof plate 22
Stroke diminishes；Pass through rodless cavity of first connecting tube 33 to driving cylinder 1 on the contrary, working as（Right side）Inject working media（Compressed air
Or hydraulic oil）When, then the piston rod of driving cylinder 1 Slideslip to the left, so as to drive the Slideslip to the right of upper plate 11 so that upper plate
11st, the stroke between lower roof plate 22 becomes larger, so as to pass through upper plate 11 and 22 spreading of lower roof plate or open-top moving contact both sides
Clamp current-carrying part, realizes that disconnecting switch clamps the reset of mandril, ensures sub-switching operation.
As depicted in figs. 1 and 2, the quantity of slide bar 21 be two, and the output shaft of driving cylinder 1 be arranged in two slide bars 21 it
Between, by said structure be able to ensure that upper plate 11 slide stability so that upper plate 11 and lower roof plate 22 spreading or open-top
More stablize during the clamp current-carrying part of moving contact both sides and reliable.
In the present embodiment, insulating bar 3 has the function that two aspects, first, utilizing insulating bar 3 by the auxiliary of the present embodiment
Switching-off device is sent to single armed at the powered dynamic/static contact for clamp type disconnecting switch of stretching, second, insulating bar 3 can be used as working media
（Compressed air or hydraulic oil）Pipeline, that realizes driving cylinder builds pressure energy storage, promotes upper plate 11 to realize that single armed stretches clamp type
The auxiliary separating brake of disconnecting switch.In the present embodiment, the length of insulating bar 3 is 1.5 meters.The single armed of the present embodiment stretch clamp type every
Leave pass auxiliary switching-off device pressure drop 0.2Mpa when pressurize 1 is small in rated pressure 1.5Mpa.The insulating bar 3 and connector of design are close
Envelope is good, without exception, meets design requirement.
As shown in Figure 1, the top of an insulating bar 3 in two insulating bars 3 is equipped with rotating mechanism 34, and the top is equipped with
The insulating bar 3 of rotating mechanism 34 is installed in the lower part of base 2 by rotating mechanism 34, can conveniently be adjusted by rotating mechanism 34
Both positions of upper plate 11 and lower roof plate 22, are stretched the moving contact position of clamp type disconnecting switch with adapting to single armed.
As shown in Figure 1, rotating mechanism 34 is multi-directional ball rotating mechanism in the present embodiment, adjustable extent bigger.
As depicted in figs. 1 and 2, the side on upper plate 11 by lower roof plate 22 is equipped with least one the first reinforcing ribs 111,
The thickness of output shaft side of the thickness of first reinforcing rib 111 from the end of upper plate 11 to driving cylinder 1 gradually increases；Lower roof plate
Side on 22 by upper plate 11 is equipped with least one the second reinforcing ribs 221, and the thickness of the second reinforcing rib 221 is from lower roof plate 22
The thickness of from end to the output shaft side of driving cylinder 1 gradually increase, pass through said structure, it is ensured that upper plate 11 and lower roof plate 22
It is more solid and reliable with more preferable stress performance, structure.
In the present embodiment, driving cylinder 1 is cylinder, using the control gas circuit that the inner tube in insulating bar 3 is cylinder, using compression
Air solves the Insulation Problems of device functional unit, realizes the reciprocating motion control of cylinder, and then drive as power source
Fault isolator realizes normal separating brake, has filled up in the operation of the type disconnecting switch and has been unable to the blank that separating brake is quickly handled.
As shown in Figure 1, the present embodiment, which further includes, builds pressure bucket 4, building pressure 4 storage inside of bucket has compressed air, builds pressure bucket 4 and passes through
Second connecting tube 41 is connected with the lower connecting flange 32 of one in foregoing two insulating bars 3.The present embodiment is made using pressure bucket 4 is built
Moved back and forth for power source to drive upper plate 11 to realize, solving device dynamical problem, the movement of upper plate 11 is empty using compression
Gas control system, the insulation performance of compressed air have with the rise of atmospheric density, the increase of its insulation performance, the processing safety of device
Ensure, and while building pressure bucket 4 has the advantages that light weight, small, it is especially suitable for the on-site maintenance of substation.Work as needs
Rod chamber by from the first connecting tube 33 to driving cylinder 1（Left side）Inject working media（Compressed air or hydraulic oil）, driving cylinder 1
Piston rod to the right Slideslip when, then will build pressure bucket 4 be connected with the lower connecting flange 32 of insulated left side bar 3, side insulation right bar 3
Lower connecting flange 32 is left blank（Referring to Fig. 1）；When the rodless cavity by the first connecting tube 33 to driving cylinder 1（Right side）Work is injected to be situated between
Matter（Compressed air or hydraulic oil）, driving cylinder 1 piston rod to the left Slideslip when, then will build pressure bucket 4 and side insulation right bar 3 under
Connecting flange 32 is connected, and the lower connecting flange 32 of insulated left side bar 3 is left blank.
The single armed of the present embodiment stretch clamp type disconnecting switch auxiliary switching-off device the course of work it is as follows：（I）In advance will
Build pressure bucket 4 by the second connecting tube 41 with the lower connecting flange 32 of insulated left side bar 3 to be connected, the lower connection method of side insulation right bar 3
Orchid 32 is left blank, and is opened and is built the rod chamber that pressure bucket 4 enters driving cylinder 1 by compressed air, and upper plate 11 is slided to lower roof plate 22, made
Stroke between upper plate 11, lower roof plate 22 is minimum so that the single armed of the present embodiment stretches clamp type disconnecting switch auxiliary point
Brake gear is ready, then can close and build pressure bucket 4 and pull down the second connecting tube 41；Stretch clamp type disconnecting switch in single armed
Mandril clamping stagnation cannot reset, in the case that moving contact cannot be opened, disconnecting switch hand first to lower conductive arm is slightly curved,
Confirm that mandril roller has left lower conductive arm.（II）Pass through the one of insulating bar 3 of adjusting with rotating mechanism 34 so that
Upper plate 11, lower roof plate 22 plug be arranged in single armed stretch clamp type disconnecting switch static contact conducting rod on, moving contact both sides
Between clamp.（III）Pressure bucket 4 will be built by the second connecting tube 41 with the lower connecting flange 32 of side insulation right bar 3 to be connected, left side is exhausted
The lower connecting flange 32 of edge bar 3 is left blank, and is opened and is built the rodless cavity that pressure bucket 4 enters driving cylinder 1 by compressed air, and upper plate 11 is remote
Slided from lower roof plate 22 so that the stroke increase between upper plate 11, lower roof plate 22, passes through 22 spreading of upper plate 11 and lower roof plate
Or open-top moving contact both sides clamp current-carrying part, realize that disconnecting switch clamps the reset of mandril, ensure sub-switching operation, and do not influence
The follow-up closing operation of this disconnecting switch.In conclusion the single armed of the present embodiment stretches, clamp type disconnecting switch aids in separating brake
Device solves the power and Insulation Problems of device, realizes the auxiliary separating brake of disconnecting switch, energy under the premise that security is guaranteed
Single armed clamp type disconnecting switch of stretching is unable to the failure of separating brake in quick processing grid switching operation, avoids occurring to fall the extra behaviour such as busbar
Make, effectively reduce power grid risk and personnel labor intensity, have the advantages that portable performance is good, easy to use, simple in structure.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of single armed stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：Including being equiped with driving cylinder（1）'s
Base（2）, the driving cylinder（1）Output shaft on be fixed with upper plate（11）, the base（2）It is equipped with slide bar（21）, institute
State upper plate（11）It is arranged and slides and is arranged in slide bar（21）On, the base（2）It is upper to be located at slide bar（21）Root be equipped with and
Upper plate（11）Lower roof plate positioned opposite（22）, the base（2）Lower part be equipped with two insulating bars（3）, the insulating bar
（3）Upper end be equipped with connecting flange（31）, lower end be equipped with lower connecting flange（32）, the insulating bar（3）Inside it is equipped with
Inner tube, the upper connecting flange（31）Pass through inner tube and lower connecting flange（32）Connection, two insulating bars（3）Upper connection
Flange（31）Pass through the first connecting tube respectively（33）And driving cylinder（1）Rod chamber and rodless cavity be connected.
2. single armed according to claim 1 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：The cunning
Bar（21）Quantity be two, and the driving cylinder（1）Output shaft be arranged in two slide bars（21）Between.
3. single armed according to claim 1 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：Described two
Root insulating bar（3）In an insulating bar（3）Top be equipped with rotating mechanism（34）, and the top is equipped with rotating mechanism（34）'s
Insulating bar（3）Pass through rotating mechanism（34）It is installed in base（2）Lower part.
4. single armed according to claim 3 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：Described turn
Motivation structure（34）For multi-directional ball rotating mechanism.
5. single armed according to claim 1 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：On described
Top plate（11）It is upper to lean on lower roof plate（22）Side be equipped with least one the first reinforcing ribs（111）, first reinforcing rib（111）
Thickness from upper plate（11）End to driving cylinder（1）The thickness of output shaft side gradually increase；The lower roof plate（22）
It is upper to lean on upper plate（11）Side be equipped with least one the second reinforcing ribs（221）, second reinforcing rib（221）Thickness from
Lower roof plate（22）End to driving cylinder（1）The thickness of output shaft side gradually increase.
6. single armed according to claim 1 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：The drive
Dynamic cylinder（1）For cylinder.
7. single armed according to claim 6 stretches, clamp type disconnecting switch aids in switching-off device, it is characterised in that：Further include
Build pressure bucket（4）, it is described to build pressure bucket（4）Storage inside has compressed air, described to build pressure bucket（4）Pass through the second connecting tube（41）With institute
State two insulating bars（3）In the lower connecting flange of one（32）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011860.0A CN106409543B (en) | 2016-11-17 | 2016-11-17 | Single armed stretch clamp type disconnecting switch auxiliary switching-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011860.0A CN106409543B (en) | 2016-11-17 | 2016-11-17 | Single armed stretch clamp type disconnecting switch auxiliary switching-off device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106409543A CN106409543A (en) | 2017-02-15 |
| CN106409543B true CN106409543B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011860.0A Active CN106409543B (en) | 2016-11-17 | 2016-11-17 | Single armed stretch clamp type disconnecting switch auxiliary switching-off device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4535208A (en) * | 1983-01-25 | 1985-08-13 | Sprecher & Schuh Ag | Actuating device for a high-voltage switch |
| JPH11242925A (en) * | 1998-02-25 | 1999-09-07 | Toshiba Corp | Hydraulic operation device |
| CN202142478U (en) * | 2011-07-15 | 2012-02-08 | 山东电力集团公司潍坊供电公司 | Breaker auxiliary brake-separating device |
| CN203644884U (en) * | 2013-10-22 | 2014-06-11 | 浙江工业大学 | Automatic balancer for propelling polar plate of battery chip packaging machine |
| CN105006385A (en) * | 2015-08-18 | 2015-10-28 | 国家电网公司 | Emergency auxiliary tool for abnormal opening of isolating switch |
| CN205009153U (en) * | 2015-10-12 | 2016-02-03 | 卡本复合材料（天津）有限公司 | Installation of prestressing force carbon fiber plate ground tackle anchor head and dismantlement frock |
-
2016
- 2016-11-17 CN CN201611011860.0A patent/CN106409543B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4535208A (en) * | 1983-01-25 | 1985-08-13 | Sprecher & Schuh Ag | Actuating device for a high-voltage switch |
| JPH11242925A (en) * | 1998-02-25 | 1999-09-07 | Toshiba Corp | Hydraulic operation device |
| CN202142478U (en) * | 2011-07-15 | 2012-02-08 | 山东电力集团公司潍坊供电公司 | Breaker auxiliary brake-separating device |
| CN203644884U (en) * | 2013-10-22 | 2014-06-11 | 浙江工业大学 | Automatic balancer for propelling polar plate of battery chip packaging machine |
| CN105006385A (en) * | 2015-08-18 | 2015-10-28 | 国家电网公司 | Emergency auxiliary tool for abnormal opening of isolating switch |
| CN205009153U (en) * | 2015-10-12 | 2016-02-03 | 卡本复合材料（天津）有限公司 | Installation of prestressing force carbon fiber plate ground tackle anchor head and dismantlement frock |
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| Publication number | Publication date |
|---|---|
| CN106409543A (en) | 2017-02-15 |
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