CN107332143B - A kind of urban distribution network miniature transformer assistance platform - Google Patents
A kind of urban distribution network miniature transformer assistance platform Download PDFInfo
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- CN107332143B CN107332143B CN201611017447.5A CN201611017447A CN107332143B CN 107332143 B CN107332143 B CN 107332143B CN 201611017447 A CN201611017447 A CN 201611017447A CN 107332143 B CN107332143 B CN 107332143B
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- transformer
- distribution network
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- 238000007689 inspection Methods 0.000 claims abstract description 55
- 230000003028 elevating Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000003032 molecular docking Methods 0.000 claims description 14
- 230000000875 corresponding Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000001131 transforming Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000001702 transmitter Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 241000565675 Oncomelania Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
Abstract
The invention discloses a kind of urban distribution network miniature transformer assistance platforms, including the sliding rail being arranged on car body, the car body, the first translation mechanism and the second translation mechanism being parallel to each other are set on the sliding rail, elevating mechanism is set on first translation mechanism and the second translation mechanism, inspection platform is arranged in the elevating mechanism top, L-type hanger is arranged in the front end activity of the inspection platform, and L-type support is arranged in the rear end of the car body.The present invention can carry out lifting movement to specific equipment or components when overhauling to pole type transformer, it does not need other lifting appliances and carries out less important work, avoid the need for the case where additional lifting appliance participates in, so that staff is more convenient for the repair and maintenance of transformer, safety when upkeep operation is also improved；It is docked by the inspection platform cooperated two-by-two, it can be in the case where removing route above transformer to lifting installation exercise is carried out above transformer, use is more flexible and convenient.
Description
Technical field
The present invention relates to transformer technical field of auxiliary equipment, and in particular to a kind of urban distribution network miniature transformer auxiliary is flat
Platform.
Background technique
With people's increasingly improvement of living standard, electricity needs is continuously increased, it is desirable to have qualified voltage quality and not
Therefore uninterruptible power service improves power supply reliability, reinforce power equipment maintenance, shorten emergency repair time, be our every electric power
Employee's responsibility, and pole transformer is a most important power supply unit, staff is in operation and maintenance and repairing pole transformer
When belong to high-altitude application.In recent years, with the propulsion that deepens continuously of urban distribution network upgrading, because fund and distribution transformer are installed
The limitation of position, the platform that distribution transformer is placed in urban distribution network upgrading mostly use greatly bar rack type transformer rack.Cause
Distribution transformer integrated power distribution cabinet (JP cabinet) mounting distance ground is higher, is carrying out equipment operation, inspection, dimension to staff
Many inconvenience are brought when shield.Currently, existing operation mode is general are as follows: first is that carrying the tools such as bamboo ladder, stool by staff
It carries out；Second is that assembling cement ladder on the ground before bar rack type transformer rack.In the implementation of the present invention, inventor
It was found that the prior art at least has the disadvantage that staff oneself carries tool belt in operation and carrys out inconvenient, work
The problem of low efficiency, and there is numerous security risks at work；In addition, assembling cement before bar rack type transformer rack
Stair-step costs is higher, is also easy to bring other problems.
And it is also contemplated that convenient to Repair of Transformer, staff desires to set up platform at the scene, it is contemplated that surrounding
Complex situations and transformer it is high risk sexual, be difficult to reserve permanent inspection platform on the transformer, thus every time maintenance need
It sets up scaffold and could construct in scene.But the reasons such as transformer device structure have the following problems scaffold construction: 1, breaking to draw again and apply
It is transformer radiator and its pipeline, control system etc. below work point, common quick-installation scaffold is difficult to apply；2, more main transformers can
Can be with batch difference, or due to being transformed, there are outer dimensions, cooling system structure difference, can not make a set of general
Quick scaffold is such as fabricated separately according to each transformation, then equipment purchase cost is made to be multiplied；3, using steel pipe/bamboo springboard
Although cost is relatively low for scaffold, flexible structure, that there are bearing capacities is limited, the construction period is long, is easy to transformer radiating system
Or casing causes the defects of damage.
A kind of bar rack type transformer is disclosed application No. is 201520300608.6 utility model to be worked with insulating telescopic
Platform, including supporting member, lower support member and treadle component on arranged side by side two groups；Every group of lower support member includes the first descending stair
Plate and the second lower gangboard, the first lower gangboard and the second lower gangboard are hinged at intermediate position；Every group of treadle component include lower supporting plate,
Upper backup pad and connecting plate；The lower end and the lower end of connecting plate of lower supporting plate and the upper end of the second lower gangboard are hinged；Upper backup pad
Lower end and the first lower gangboard upper end it is hinged, the first lower gangboard between two groups of treadle components descends gangboard upper end hinged with second
There is pedal；Supporting member includes upper gangboard, upper junction plate and pedal, the transformer insulated flexible workbench dress of bar rack type on every group
It sets and is stored in insulating telescopic workbench dedicated box, the included tool for thoroughly solving staff is cumbersome, working efficiency is low,
The high problem of ground ladder station cost.But the platform can not hoisting large-size components, staff in the tool of taking or
There is inconvenience when part.
Application No. is a kind of pole type transformers of 201510722906.9 disclosure of the invention to overhaul rack, including multiple supports
Bar and the two L types symmetrically placed step on body, and each L type steps on body by horizontal positioned pedal and perpendicular to stepping on
The guardrail of plate forms, and described two L types are stepped between the pedal of body and are connected with each other by string oncomelania silk, sets on each pedal
There are multiple sliding slots, the upper end of each support rod is equipped with sliding block, for the sliding slot sliding on pedal, meanwhile, it is described each
The lower end of support rod then passes through fastening screw and two arc spacer ferrules are fixed on bridge.It is also laid between described two pedals
There is parcel shelf.The present invention provides operating platform for Repair of Transformer personnel, reduces the difficulty of its work, and improves transformation
The safety of device service work, is worthy to be popularized.The invention still not no ability of lifting heavy, in maintenance, limitation is larger.
Summary of the invention
The problem to be solved by the invention is to provide a kind of urban distribution network miniature transformer assistance platforms, to pole type transformer
Lifting movement can be carried out to specific equipment or components when maintenance, not need other lifting appliances and carry out less important work, keep away
The case where additional lifting appliance of needs participates in is exempted from.
In order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of urban distribution network miniature transformer assistance platform, it is described including the sliding rail being arranged on car body, the car body
The first translation mechanism and the second translation mechanism being parallel to each other, first translation mechanism and the second translation are set on sliding rail
Elevating mechanism is set in mechanism, and inspection platform is arranged in the elevating mechanism top, and L-type is arranged in the front end activity of the inspection platform
L-type support is arranged in the rear end of hanger, the car body.
Further, the inspection platform includes the first bottom plate between two first transverse arms and first transverse arm, and two
Slideway is set on the first transverse arm described in root, the second transverse arm is set on the slideway, the second bottom plate is set between second transverse arm.
Further, the inspection platform is rotatably provided in the top of the elevating mechanism.
Further, the elevating mechanism top corresponds to the oblique strut of the inspection platform setting.
Further, the L-type hanger is movably arranged on the front end of second bottom plate, the second front arm activity
Docking mechanism is set.
Further, the docking mechanism includes the fixed -piping that internal diameter is greater than the second transverse arm outer diameter, the fixation
Third bottom plate is set between pipeline.
Further, rotating basis is arranged in the front end of second bottom plate, corresponds to the L-type hanger on the rotating basis
Fixed jack is set.
Further, the elevating mechanism includes hydraulic lifting post and hydraulic lifting post lower end rotation connection setting
Driving motor is arranged in the support base for support base, and annular rack is arranged in the hydraulic lifting column bottom, and the driving is electric
Machine and the annular rack are sequentially connected by reduction gearbox.
Further, first translation mechanism and the second translation mechanism include the translation electricity of lead screw, the driving lead screw
Machine and the fixed link matched with the lead screw are arranged sliding block on the lead screw and fixed link, the branch are arranged on the sliding block
Support pedestal.
Further, graphite lubrication layer is arranged in the lead screw and fixed rod outer surface.
Further, collision detection module is arranged in the inspection platform two sides, and the collision detection module includes the lid
The RF transmitter of trigger structure one end setting and the infrared receiver of other end setting.
The present invention provides a kind of urban distribution network miniature transformer assistance platforms, it is intended that solves urban distribution network in the prior art
It is overhauled the problems such as difficult caused by the assembly of pole type transformer body part is inconvenient, which is arranged on the car body, makes
Used time can quickly be pulled to scene, and the width of car body is less than the distance between the cement shaft tower of support transformer, be convenient for car body
Drive into the underface of transformer.When car body is in immediately below transformer, the first translation mechanism and second on sliding rail are flat
Institutional adjustment self-position is moved to the corresponding two sides of transformer, then elevating mechanism drives the inspection platform on top to be moved to transformation
The side suitable position of device, elevating mechanism start to extend, and by inspection platform top to transformer side, staff can examined
Upkeep operation is carried out to transformer on equating platform.The L-type hanger of inspection platform front end can carry out the components on transformer
Hanging transfer, it is final to realize replacement fan, inside transformer part is carried out the operation such as to replace.The hanger is because of maintenance strip tool
Standby elevating function, itself horizontal position can be very high, can use small-sized hanger, also very convenient during installation.It hangs
The front end of cover plate mechanism for auto is arranged in frame, and large parts can be hung to transformer top and carry out installation and replacement, facilitate work people
The work of member.L-type support is arranged in the rear of car body and increases support for the stability of car body, prevents the shadow when lifting by crane heavy objects
Ring car body balance.
Inspection platform is rotatably provided in the top of elevating mechanism, and inspection platform is flexible setting, in this way in maintenance transformation
It, can be by L-type hanger pair by rotating direction and the adjustment translation mechanism of inspection platform when any position of device any side
Any position of transformer side should be arrived, oblique strut is arranged in the top of elevating mechanism, and the length of inspection platform is larger, by oblique
Connection to strut and the first transverse arm realizes preferably support to inspection platform.Inspection platform passes through the first translation mechanism and the
Docking mechanism is arranged in corresponding two sides of transformer, the second front arm activity in the setting of two translation mechanisms, and maintenance in this way is flat
After the height of platform is greater than transformer, two inspection platforms can be docking together by its front end after rotation, thus in transformer
The platform of a hanging and maintenance is built in top, realizes to the service work above transformer.The structure is advantageous in that transformation
Route is more above device, and it is flexible and changeable that this builds mode, can bypass inlet-outlet line, will not impact, make to the route of top
With very flexibly.L-type hanger is arranged on the second bottom plate also by rotating basis, more convenient when hanging components in this way.
Elevating mechanism uses hydraulic lifting post, and the dynamics of lifting is more sufficient, and stability is also more preferable.Inspection platform and elevator
Structure rotation connection, then structure is complicated for its junction, therefore the support base of rotation connection is arranged in hydraulic lifting column bottom, passes through
Driving motor supplies power so that elevating mechanism be driven to be rotated, and then realizes the direction tune of cover plate mechanism for auto to annular rack
It is whole.Translation mechanism realized by the way of lead screw, and translation motor drives lead screw to be rotated so that sliding block carry out it is flat
Move, elevating mechanism driven to be translated, the translation mode dynamics is bigger and more stable, lead screw and fixed link appearance buy in
Graphite lubrication layer reduces the frictional force of sliding block translation, and effect is more preferable.
The present invention can carry out lifting movement to specific equipment or components when overhauling to pole type transformer, not need it
Its lifting appliance carries out less important work, avoids the need for the case where additional lifting appliance participates in, so that staff is for becoming
The repair and maintenance of depressor is more convenient, also improves safety when upkeep operation；It is carried out by the inspection platform cooperated two-by-two
Docking, can be in the case where not removing route above transformer to lifting installation exercise is carried out above transformer, using more
Flexibly and easily.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of sliding rail of the present invention；
Fig. 3 is the top view of inspection platform of the present invention；
Fig. 4 is the structural schematic diagram of cover plate mechanism for auto of the present invention；
Fig. 5 is the top view of cover plate mechanism for auto overlap joint state of the present invention；
Fig. 6 is the structural schematic diagram of present invention rotation docking mechanism；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention four.
Specific embodiment
Technical solution of the present invention is further shown below with reference to Fig. 1 to Fig. 7, specific embodiment is as follows:
Embodiment one
It is as shown in Figures 1 to 5: to present embodiments provide a kind of urban distribution network miniature transformer assistance platform, including car body
1, the first translation mechanism 2 and second being parallel to each other is arranged on the sliding rail 7 in the sliding rail 7 being arranged on the car body 1
Elevating mechanism is set on translation mechanism 29, first translation mechanism 2 and the second translation mechanism 29, and the elevating mechanism top is set
Inspection platform 3 is set, L-type hanger 9 is arranged in the front end activity of the inspection platform 3, and L-type support 8 is arranged in the rear end of the car body 1.
Inspection platform is rotatably provided in the top of elevating mechanism, and inspection platform is flexible setting, in this way in maintenance transformation
It, can be by L-type hanger pair by rotating direction and the adjustment translation mechanism of inspection platform when any position of device any side
Any position of transformer side should be arrived, oblique strut is arranged in the top of elevating mechanism, and the length of inspection platform is larger, by oblique
Connection to strut and the first transverse arm realizes preferably support to inspection platform.Inspection platform passes through the first translation mechanism and the
Docking mechanism is arranged in corresponding two sides of transformer, the second front arm activity in the setting of two translation mechanisms, and maintenance in this way is flat
After the height of platform is greater than transformer, two inspection platforms can be docking together by its front end after rotation, thus in transformer
The platform of a hanging and maintenance is built in top, realizes to the service work above transformer.The structure is advantageous in that transformation
Route is more above device, and it is flexible and changeable that this builds mode, can bypass inlet-outlet line, will not impact, make to the route of top
With very flexibly.L-type hanger is arranged on the second bottom plate also by rotating basis, more convenient when hanging components in this way.L
Type bracket is arranged in the rear of car body and increases support for the stability of car body, and preventing, which influences car body when lifting by crane heavy objects, puts down
Weighing apparatus.
The inspection platform 3 includes the first bottom plate 20 between two first transverse arms 19 and first transverse arm 19, and two
Slideway 21 is set on first transverse arm 19, second transverse arm 18 is set on the slideway 21, is arranged between second transverse arm 18
Second bottom plate 17；The inspection platform 3 is rotatably provided in the top of the elevating mechanism；Described in the elevating mechanism top is corresponding
Oblique strut 6 is arranged in inspection platform 3.
Inspection platform is rotatably provided in the top of elevating mechanism, and inspection platform is flexible setting, in this way in maintenance transformation
By rotating direction and the adjustment translation mechanism of inspection platform when any position of device, L-type hanger can be corresponded into transformation
Oblique strut is arranged in any position of device side, the top of elevating mechanism, and the length of inspection platform is larger, by oblique strut with
The connection of first transverse arm realizes preferably support to inspection platform.
Embodiment two
As shown in Figure 6: the difference of itself and embodiment one is:
The L-type hanger 9 is movably arranged on the front end of second bottom plate 17,18 front end activity of the second transverse arm setting
Docking mechanism；The docking mechanism includes the fixed -piping 23 that internal diameter is greater than 18 outer diameter of the second transverse arm, the fixed -piping
Third bottom plate 22 is set between 23；Rotating basis 26 is arranged in the front end of second bottom plate 17, corresponds on the rotating basis 26
Fixed jack 27 is arranged in the L-type hanger 9.
Inspection platform by the first translation mechanism and the setting of the second translation mechanism in corresponding two sides of transformer, second
Docking mechanism is arranged in front arm activity, and after the height of such inspection platform is greater than transformer, two inspection platforms pass through rotation
Its front end can be docking together afterwards, so that the platform of a hanging and maintenance is built by side on the transformer, realize to transformer
The service work of top.The structure is advantageous in that above transformer that route is more, and it is flexible and changeable that this builds mode, can bypass
Inlet-outlet line will not impact the route of top, and use is very flexible.L-type hanger is arranged also by rotating basis second
It is more convenient when hanging components in this way on bottom plate.
Embodiment three
It is with the difference of embodiment one as shown in Figure 1::
The elevating mechanism includes the support bottom of hydraulic lifting post 4 and the rotation connection setting of 4 lower end of the hydraulic lifting post
Seat 13, driving motor 15 is arranged in the support base 13, and annular rack 14, the drive is arranged in 4 bottom of hydraulic lifting post
Dynamic motor 15 is sequentially connected with the annular rack 14 by reduction gearbox 16.
The translation mechanism includes lead screw 11, drives the translation motor 28 of the lead screw 11 and match with the lead screw 11
Fixed link 10, be arranged sliding block 12 on the lead screw 11 and fixed link 10, the support base 13 be set on the sliding block 12；Institute
It states lead screw 11 and graphite lubrication layer is arranged in 10 outer surface of fixed link.
Elevating mechanism uses hydraulic lifting post, and the dynamics of lifting is more sufficient, and stability is also more preferable.Inspection platform and elevator
Stock rotation connection, then structure is complicated for its junction, therefore the branch of rotation connection is arranged in the present embodiment in hydraulic lifting column bottom
Pedestal is supportted, by driving motor supplies power to annular rack, so that elevating mechanism be driven to be rotated, and then realizes that maintenance is flat
The direction of platform adjusts, and the rotation mode dynamics is more sufficient also more steady.Translation mechanism realizes that translation is electric by the way of lead screw
Machine drives lead screw to be rotated, so that sliding block is translated, drives elevating mechanism to be translated, the translation mode dynamics is more
Greatly, and more stable, lead screw and fixed link appearance buy the frictional force that interior graphite lubrication layer reduces sliding block translation, and effect is more
It is good.First translation mechanism and the second translation mechanism are arranged on sliding rail by bracket, are similar to gantry crane structure, lead screw
Both ends are connected by the both ends of bearing and bracket, and translation motor applies power can be so that lead screw be rotated.
Example IV
As shown in Figure 7: the difference of itself and embodiment one is:
Collision detection module is arranged in 3 two sides of inspection platform, and the collision detection module includes the inspection platform 3 one
Hold the RF transmitter 24 of setting and the infrared receiver 25 of other end setting.The more structure of route above transformer is multiple
It is miscellaneous, it is likely to encounter route or equipment when two inspection platforms overlap, damage, therefore at the both ends of inspection platform
RF transmitter and infrared receiver are set, and the infrared light of one end transmitting can be received by the other end, when there is obstacle in centre
When object, receiver can not receive infrared ray, and control alarm is alarmed after control module receives information, can be in transformation
It alarms when overlap joint inspection platform above device, improves the safety of operation.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (7)
1. a kind of urban distribution network miniature transformer assistance platform, it is characterised in that: including the sliding being arranged on car body, the car body
The first translation mechanism and the second translation mechanism being parallel to each other, first translation mechanism is arranged on the sliding rail in track
With elevating mechanism is set on the second translation mechanism, inspection platform, the front end of the inspection platform is arranged in the elevating mechanism top
L-type support is arranged in activity setting L-type hanger, the rear end of the car body；The inspection platform includes two first transverse arms and described
The first bottom plate between first transverse arm is arranged slideway on two first transverse arms, the second transverse arm is arranged on the slideway, described
Second bottom plate is set between the second transverse arm；The L-type hanger is movably arranged on the front end of second bottom plate, second transverse arm
Docking mechanism is arranged in front end activity；The docking mechanism includes the fixed -piping that internal diameter is greater than the second transverse arm outer diameter, described
Third bottom plate is set between fixed -piping.
2. urban distribution network miniature transformer assistance platform as described in claim 1, it is characterised in that: the inspection platform rotation
The top of the elevating mechanism is set.
3. urban distribution network miniature transformer assistance platform as claimed in claim 2, it is characterised in that: the elevating mechanism top
Oblique strut is arranged in the corresponding inspection platform.
4. urban distribution network miniature transformer assistance platform as described in claim 1, it is characterised in that: before second bottom plate
Rotating basis is arranged in end, and the L-type hanger setting fixed jack is corresponded on the rotating basis.
5. urban distribution network miniature transformer assistance platform as described in claim 1, it is characterised in that: the elevating mechanism includes
Hydraulic lifting post and hydraulic lifting post lower end rotation connect the support base of setting, setting driving electricity in the support base
Machine, the hydraulic lifting column bottom are arranged annular rack, the driving motor and the annular rack and are driven company by reduction gearbox
It connects.
6. urban distribution network miniature transformer assistance platform as claimed in claim 5, it is characterised in that: first translation mechanism
It include lead screw, the translation motor of the driving lead screw and the fixed link that is matched with the lead screw with the second translation mechanism, it is described
It is arranged sliding block on lead screw and fixed link, the support base is set on the sliding block.
7. urban distribution network miniature transformer assistance platform as claimed in claim 6, it is characterised in that: the lead screw and fixed link
Graphite lubrication layer is arranged in outer surface.
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| CN107895901A (en) * | 2017-11-30 | 2018-04-10 | 国网河南省电力公司南阳供电公司 | Transformer station's Special anti-loosening is combination crank |
| CN111029955B (en) * | 2019-12-07 | 2021-04-16 | 国网山东省电力公司日照供电公司 | 10kv post-up transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207089A (en) * | 2015-09-14 | 2015-12-30 | 国网山东省电力公司菏泽供电公司 | Novel handcart-switch delivering and overhauling cart |
| CN105914627A (en) * | 2016-06-20 | 2016-08-31 | 徐光武 | Transformer substation high voltage overhaul work platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4999911B2 (en) * | 2008-12-02 | 2012-08-15 | 株式会社シンテック | Installation structure and installation method of high-voltage power receiving equipment for middle- and high-rise apartments |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207089A (en) * | 2015-09-14 | 2015-12-30 | 国网山东省电力公司菏泽供电公司 | Novel handcart-switch delivering and overhauling cart |
| CN105914627A (en) * | 2016-06-20 | 2016-08-31 | 徐光武 | Transformer substation high voltage overhaul work platform |
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