CN106451107B - Built-in type safety operation high and low voltage switch cabinet device - Google Patents
Built-in type safety operation high and low voltage switch cabinet device Download PDFInfo
- Publication number
- CN106451107B CN106451107B CN201610972388.0A CN201610972388A CN106451107B CN 106451107 B CN106451107 B CN 106451107B CN 201610972388 A CN201610972388 A CN 201610972388A CN 106451107 B CN106451107 B CN 106451107B
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- Prior art keywords
- arm
- built
- low voltage
- flip
- switch cabinet
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
Abstract
The invention discloses a kind of built-in type safety operation high and low voltage switch cabinet devices, built-in groove including being arranged below ground, the notch of built-in groove is equipped with notch rib, it is slided in built-in groove and is equipped with horizontal slider, horizontal slider is hinged with height bar, height boom end is connected with overturning seat mechanism, it overturns seat mechanism and is equipped with flip-arm, flip-arm activity is plugged with operation and visits arm, the front end that arm is visited in operation is equipped with operation installing mechanism, the forepart of operation installing mechanism is connected with scaling operation probe mechanism or rotation process probe mechanism, the rear portion of operation installing mechanism is equipped with the operation axostylus axostyle being connect with scaling operation probe mechanism, operation axostylus axostyle, which extends to, is connected with operation handle at flip-arm.The present invention can make operating personnel's safe distance operate high and low voltage switchgear, avoid directly touching high and low voltage switchgear, and safe operation performance is high, avoid the generation of accident wounding event, protect personal safety as well as the property safety, and take full advantage of the underground space, convenient for storage.
Description
Technical field
The present invention relates to a kind of operation high and low voltage switch cabinet devices more particularly to a kind of built-in type safety operation height to press off
Close cabinet device.
Background technology
High and low voltage switchgear is to connect high pressure or the equipment of type low-voltage cable, and general power supply bureau, electric substation are all to use high-voltage board, so
Low-voltage cabinet is arrived again by transformer pressure-reducing, and low-voltage cabinet arrives the distribution box of each electricity consumption again, and the inside is exactly that some switches are disconnected nothing but
The electrical equipment that road device etc protection device is assembled integrally.When operating high and low voltage switchgear, electric arc generation, wound are had sometimes
And the body of operating personnel, how to ensure the safety of operating personnel, become the important indicator for operating high and low voltage switchgear.
Invention content
The present invention provides a kind of built-in type safety operation high and low voltage switch cabinet device, can grasp operating personnel's safe distance
Make high and low voltage switchgear, avoid directly touching high and low voltage switchgear, safe operation performance is high, avoids the hair of accident wounding event
It is raw, personal safety as well as the property safety is protected, makes full use of the underground space, convenient for storage.
In order to solve the above technical problems, the technical scheme is that：A kind of built-in type safety operation high and low voltage switchgear
Device, several built-in grooves being set up in parallel including being arranged below ground, the notch of the built-in groove is equipped with to be extended inwardly
Notch rib, slide in the built-in groove and be equipped with horizontal slider of the block below notch rib, the horizontal slider is hinged
There is height bar, the height boom end is connected with overturning seat mechanism, and the overturning seat mechanism is equipped with flip-arm, the flip-arm
Activity is plugged with operation and visits arm, and the front end that arm is visited in the operation is equipped with operation installing mechanism, the forepart of the operation installing mechanism
Be connected with scaling operation probe mechanism or rotation process probe mechanism, the rear portion of the operation installing mechanism be equipped with it is described
The operation axostylus axostyle of scaling operation probe mechanism connection, the operation axostylus axostyle, which is extended at the flip-arm, is connected with operation handle.
As preferred technical solution, the overturning seat mechanism includes the web seat being connect with the height boom end, institute
The both sides for stating web seat are respectively equipped with wing plate seat, are equipped between the two wing plate seats and the web seat corresponding with the flip-arm
Folding tank, the outer end axis pins of the two wing plate seats is connected with the flip-arm, and the outer end of the web seat is located at two
The inside of the outer end of the wing plate seat, and the outer end of the web seat also serves as the overturning block machine of the flip-arm.
As the improvement to above-mentioned technical proposal, the operation installing mechanism includes being mounted on the front end that arm is visited in the operation
Mounting base, bearing block is installed in the mounting base, rolling bearing on the bearing block is installed, is pacified in the rolling bearing
Equipped with rotating pin, the forepart of the rotating pin is plugged with the scaling operation probe mechanism or rotation process probe mechanism,
Axostylus axostyle is operated described in the rear portion grafting of the rotating pin.
As the improvement to above-mentioned technical proposal, the scaling operation probe mechanism includes being telescopically connected disk, described flexible
It is fixedly connected with branch sleeve in front of terminal pad, the rear for being telescopically connected disk is connected with stretches with the mounting base grafting
Irish splice pin, is provided in the axial direction with flexible guide groove on the branch sleeve inner wall, it is described be telescopically connected on disk run through be equipped with it is flexible
Drive shaft, one end of the telescopic propeller shaft and the forepart grafting of the rotating pin, the other end of the telescopic propeller shaft prolong
It extends in the branch sleeve and screw thread is equipped with knock pin, the side wall of the knock pin is led equipped with described stretch is slidably disposed in
Flexible guide protrusions in slot.
As the improvement to above-mentioned technical proposal, the rotation process probe mechanism includes rotatable connection disk, the rotation
The posterior center position of terminal pad is equipped with the rotary insertion outbound with the forepart grafting of the rotating pin, the rotatable connection disk
Forepart eccentric position is equipped with rotation process arm, and the front end of the rotation process arm is connected with two groups of supporting rods being oppositely arranged.
It is further improved as to above-mentioned technical proposal, the operation axostylus axostyle is visited arm with the operation and is arranged in parallel, institute
State the operating shaft point rod segment that operation axostylus axostyle is equipped with several sections of grafting successively, the behaviour that arm is equipped with several sections of grafting successively is visited in the operation
Work divides arm section.
It is further improved as to above-mentioned technical proposal, the quantity for dividing arm section and the length of operating divides bar with operating shaft
Section is corresponding.
It is further improved as to above-mentioned technical proposal, height bar includes several hyperbranched bars being set with successively.
As the further improvement to above-mentioned technical proposal, the horizontal slider is set to be cylindrical.
As the further improvement to above-mentioned technical proposal, the notch of the built-in groove is equipped with cover board, and the cover board is simultaneous
Do safety operation warning line.
By adopting the above-described technical solution, during operation high and low voltage switchgear, the height in corresponding built-in groove will be folded
Degree bar is routed up, and can drag position adjustment horizontal position of the horizontal slider in built-in groove, and flip-arm is turned over by overturning seat mechanism
Turn to open, operation is visited arm is plugged on flip-arm, if the button switch of operation high and low voltage switchgear, selects scaling operation
Probe mechanism is connected with operation installing mechanism, and operation operation handle drives operation axostylus axostyle, then scaling operation probe mechanism is driven to press
The button of high and low voltage switchgear is touched, realizes operation.If operating the rotating handles of high and low voltage switchgear, rotation process is selected to visit
Head mechanism is connected with operation installing mechanism, and operation operation handle drives operation axostylus axostyle, then rotation process probe mechanism is driven to rotate
The rotating handles of high and low voltage switchgear realize operation.It is daily when not in use, operation visit arm split from flip-arm, individually deposit
It puts, by height bar, overturning seat mechanism and flip-arm folding storage in built-in groove.The present invention can make operating personnel's safe distance
High and low voltage switchgear is operated, avoids directly touching high and low voltage switchgear, safe operation performance is high, avoids the hair of accident wounding event
It is raw, personal safety as well as the property safety is protected, and take full advantage of the underground space, convenient for storage.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is that the flip-arm of the embodiment of the present invention is located at overturning seat state diagram within the organization；
Fig. 3 is that the height bar of the embodiment of the present invention is located at the state diagram in built-in groove；
Fig. 4 is that the height bar of the embodiment of the present invention is located at the side state diagram in built-in groove；
Fig. 5 is the structure diagram of the scaling operation probe mechanism of the embodiment of the present invention；
Fig. 6 is the ejection state diagram of the knock pin of the scaling operation probe mechanism of the embodiment of the present invention；
Fig. 7 is the installation diagram of the rotation process probe mechanism of the embodiment of the present invention.
In figure：1- built-in grooves；11- notch ribs；12- horizontal sliders；13- height bars；14- cover boards；15- vertical angles limit
Position block；21- web seats；22- wing plate seats；23- folds tank；24- flip-arms；Arm is visited in 3- operations；31- operations divide arm section；32-
It is segmented stent；41- mounting bases；42- rolling bearings；43- rotating pins；51- is telescopically connected disk；52- branch sleeves；53- stretches
Grafting pin；54- stretches guide groove；55- telescopic propeller shafts；56- knock pins；57- stretches guide protrusions；61- rotatable connection disks；62-
Rotary insertion outbound；63- rotation process arms；64- supporting rods；7- operates axostylus axostyle；71- operating shafts divide rod segment；72- operation handles；8-
Ground.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the present invention.Undoubtedly, those of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, described embodiment can be repaiied with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
As shown in Figure 1, a kind of built-in type safety operation high and low voltage switch cabinet device, if including being arranged on ground below 8
The dry built-in groove 1 being set up in parallel, the notch of built-in groove 1 are equipped with the notch rib 11 extended inwardly, slide and be equipped in built-in groove 1
Horizontal slider 12 of the block below notch rib 11, horizontal slider 12 are hinged with height bar 13, and 13 end of height bar is connected with
Seat mechanism is overturn, overturning seat mechanism is equipped with flip-arm 24, and 24 activity of flip-arm is plugged with operation and visits arm 3, before arm 3 is visited in operation
End is equipped with operation installing mechanism, and the forepart for operating installing mechanism is connected with scaling operation probe mechanism or rotation process probe
Mechanism, the rear portion for operating installing mechanism are equipped with the operation axostylus axostyle 7 being connect with scaling operation probe mechanism, and operation axostylus axostyle 7 extends to
Operation handle 72 is connected at flip-arm 24.
When operating high and low voltage switchgear, the height bar 13 that will be folded in corresponding built-in groove 1 is routed up, and can drag level
Position adjustment horizontal position of the sliding block 12 in built-in groove 1, flip-arm 24 is turned over by overturning seat mechanism to be turned to open, and operation is visited arm
3 are plugged on flip-arm 24, if the button switch of operation high and low voltage switchgear, selects scaling operation probe mechanism and operation
Installing mechanism connects, and operation operation handle 72 drives operation axostylus axostyle 7, then drives scaling operation probe mechanism by tactile high and low voltage switch
The button of cabinet realizes operation.If operating the rotating handles of high and low voltage switchgear, rotation process probe mechanism and operation are selected
Installing mechanism connects, and operation operation handle 72 drives operation axostylus axostyle 7, then rotation process probe mechanism is driven to rotate high and low voltage switch
The rotating handles of cabinet realize operation.
As shown in Figure 2, Figure 3 and Figure 4, daily operation is visited arm 3 and is split from flip-arm 24 when not in use, individually stores,
By height bar 13, overturning seat mechanism and 24 folding storage of flip-arm in built-in groove 1.
Overturning seat mechanism includes the web seat 21 being connect with 13 end of height bar, and the both sides of web seat 21 are respectively equipped with wing plate
Seat 22 is equipped with folding tank 23 corresponding with flip-arm 24, the outer end of both wings panel seat 22 between both wings panel seat 22 and web seat 21
Portion's axis pin is connected with flip-arm 24, and the outer end of web seat 21 is located at the inside of the outer end of both wings panel seat 22, and web seat 21
Outer end also serve as the overturning block machine of flip-arm 24.Web seat 21, wing plate seat 22 and height bar 13 can fix welding, it is daily not
In use, flip-arm 24 folds income to folding in tank 23, when operating high and low voltage switchgear, flip-arm 24 is overturn around axis pin
270 °, block is in the outer end of web seat 21.Above structure occupies little space, and easy for operation convenient for storage.
It operates installing mechanism to include being mounted on the mounting base 41 for the front end that arm 3 is visited in operation, bearing is installed in mounting base 41
, rolling bearing 42 is installed on bearing block, rotating pin 43, the forepart grafting of rotating pin 43 are installed in rolling bearing 42
There are scaling operation probe mechanism or rotation process probe mechanism, the rear portion grafting operation axostylus axostyle 7 of rotating pin 43.Operate manipulator
Handle 72 drives operation axostylus axostyle 7, and rotating pin 43 is driven accordingly to rotate, then scaling operation probe mechanism or rotation process is driven to pop one's head in
Mechanism makes scaling operation probe mechanism press the button of tactile high and low voltage switchgear or makes rotation process probe mechanism rotation height
Compress switch the rotating handles of cabinet.
As shown in figure 5, scaling operation probe mechanism includes being telescopically connected disk 51, the front for being telescopically connected disk 51 is fixedly connected
There is branch sleeve 52, the rear for being telescopically connected disk 51 is connected with flexible grafting pin 53 with 41 grafting of mounting base, branch sleeve 52
Flexible guide groove 54 is provided in the axial direction on inner wall, is telescopically connected on disk 51 and runs through equipped with telescopic propeller shaft 55, telescopic propeller shaft 55
One end and rotating pin 43 forepart grafting, the other end of telescopic propeller shaft 55 extends in branch sleeve 52 and screw thread is worn
There is knock pin 56, the side wall of knock pin 56 is equipped with the flexible guide protrusions 57 being slidably disposed in flexible guide groove 54.
As shown in fig. 6, if the button switch of operation high and low voltage switchgear, selects scaling operation probe mechanism and operation
Installing mechanism connect, rotating pin 43 rotate when, drive telescopic propeller shaft 55, due to be telescopically connected disk 51 by with mounting base 41
Plugged and fixed is motionless, and telescopic propeller shaft 55 stretches out knock pin 56 by screw thread, touches the button switch of high and low voltage switchgear, real
Existing corresponding operating.
As shown in fig. 7, rotation process probe mechanism includes rotatable connection disk 61, the posterior center position for the disk 61 that is rotatably connected
Rotary insertion outbound 62 equipped with the forepart grafting with rotating pin 43, the forepart eccentric position of rotatable connection disk 61 are equipped with rotation and grasp
Make arm 63, the front end of rotation process arm 63 is connected with two groups of supporting rods being oppositely arranged 64.
If operating the rotating handles of high and low voltage switchgear, rotation process probe mechanism and operation installing mechanism is selected to connect
It connects, when rotating pin 43 rotates, drives rotatable connection disk 61,63 eccentric rotary of rotation process arm, supporting rod 64 clamps high-low pressure
The rotating handles rotation of switchgear, realizes corresponding operating.
Operation axostylus axostyle 7 is visited arm 3 with operation and is arranged in parallel, and operating shaft of the operation axostylus axostyle 7 equipped with several sections of grafting successively divides bar
Section 71, operation, which visits arm 3 and is equipped with the operations of several sections of grafting successively, divides arm section 31, and above structure can adjust operation axostylus axostyle 7 and behaviour
Make the length of spy arm 3.
Operation divides the quantity of arm section 31 and length corresponding with operating shaft point rod segment 71.Above structure facilitates adjusting operating shaft
Bar 7 visits the length of arm 3 with operation.For the stability for rotating operation axostylus axostyle 7, operating shaft point rod segment 71 divides arm section 31 with operation
Between be equipped with segmentation stent 32, operating shaft divide rod segment 71 and segmentation stent 32 between be equipped with segmentation bearing.
Height bar 13 includes several hyperbranched bars being set with successively, by taking out degree of raising branch bar, makes hyperbranched bar
Expansion is shunk, and can quickly adjust height, convenient and practical.
Horizontal slider 12 is set to be cylindrical, and above structure adjusts direction, simple operation convenient for rotation.
The notch of built-in groove 1 is equipped with cover board 14, and cover board 14 also serves as safety operation warning line, and above structure has good close
Feng Xing can set marking line to paste on cover board 14, also serve as safety operation warning line, perfect in shape and function.
For ease of use, height bar 13, operation axostylus axostyle 7 visit arm 3 with operation and are respectively equipped with graduation mark, facilitate gauge height
And length, it is easy to operation.
For safety, knock pin 56, supporting rod 64 and operation handle 72 are externally provided with insulating layer, can further protect operation
The personal safety of personnel.
When the height bar 13 folded in corresponding built-in groove 1 is routed up, in order to preferably limit the angle of height bar 13,
Horizontal slider 12 is equipped with articulated stand, and height bar 13 is connected on articulated stand, and one end of articulated stand is equipped with vertical angle
Limited block 15.
The present embodiment can make operating personnel's safe distance operate high and low voltage switchgear, avoid directly touching high and low voltage switch
Cabinet, safe operation performance is high, avoids the generation of accident wounding event, protects personal safety as well as the property safety, and take full advantage of underground
Space, convenient for storage.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of built-in type safety operation high and low voltage switch cabinet device, it is characterised in that：Including being arranged on the several of below ground
The built-in groove being set up in parallel, the notch of the built-in groove are equipped with the notch rib extended inwardly, slide and set in the built-in groove
There is horizontal slider of the block below notch rib, the horizontal slider is hinged with height bar, and the height boom end is connected with
Seat mechanism is overturn, the overturning seat mechanism is equipped with flip-arm, and the flip-arm activity is plugged with operation and visits arm, and the operation is visited
The front end of arm is equipped with operation installing mechanism, and the forepart of the operation installing mechanism is connected with scaling operation probe mechanism or rotation
Turn operation probe mechanism, the rear portion of the operation installing mechanism is equipped with pops one's head in the scaling operation probe mechanism or rotation process
The operation axostylus axostyle of mechanism connection, the operation axostylus axostyle, which is extended at the flip-arm, is connected with operation handle；
The operation installing mechanism includes being mounted on the mounting base for the front end that arm is visited in the operation, and axis is equipped in the mounting base
Bearing is equipped with rolling bearing on the bearing block, is equipped with rotating pin in the rolling bearing, before the rotating pin
Portion is plugged with the scaling operation probe mechanism or rotation process probe mechanism, operation described in the rear portion grafting of the rotating pin
Axostylus axostyle；
The scaling operation probe mechanism includes being telescopically connected disk, and described be telescopically connected in front of disk is fixedly connected with connector sleeve
Cylinder, the rear for being telescopically connected disk are connected with the flexible grafting pin with the mounting base grafting, on the branch sleeve inner wall
Flexible guide groove is provided in the axial direction with, described be telescopically connected on disk is run through equipped with telescopic propeller shaft, one end of the telescopic propeller shaft
With the forepart grafting of the rotating pin, the other end of the telescopic propeller shaft extends in the branch sleeve and screw thread is worn
There is knock pin, the side wall of the knock pin is equipped with the flexible guide protrusions being slidably disposed in the flexible guide groove.
2. built-in type safety operation high and low voltage switch cabinet device as described in claim 1, it is characterised in that：The overturning base
Structure includes the web seat being connect with the height boom end, and the both sides of the web seat are respectively equipped with wing plate seat, two wing plates
Seat is with being equipped with folding tank corresponding with the flip-arm, the outer end axis pin connection of the two wing plate seats between the web seat
There is a flip-arm, the outer end of the web seat is located at the inside of the outer end of the two wing plate seats, and the web seat
Outer end also serves as the overturning block machine of the flip-arm.
3. built-in type safety operation high and low voltage switch cabinet device as described in claim 1, it is characterised in that：The rotation process
Probe mechanism includes rotatable connection disk, and the posterior center position of the rotatable connection disk is equipped with inserts with the forepart of the rotating pin
The rotary insertion outbound connect, the forepart eccentric position of the rotatable connection disk is equipped with rotation process arm, before the rotation process arm
End is connected with two groups of supporting rods being oppositely arranged.
4. built-in type safety operation high and low voltage switch cabinet device as described in claim 1, it is characterised in that：The operation axostylus axostyle
Arm is visited with the operation to be arranged in parallel, the operating shaft that the operation axostylus axostyle is equipped with several sections of grafting successively divides rod segment, the operation
It visits arm and is equipped with the operations of several sections of grafting successively and divide arm section.
5. built-in type safety operation high and low voltage switch cabinet device as claimed in claim 4, it is characterised in that：The operation divides arm
The quantity and length of section divide rod segment corresponding with operating shaft.
6. built-in type safety operation high and low voltage switch cabinet device as described in claim 1, it is characterised in that：If height bar includes
The dry hyperbranched bar being set with successively.
7. built-in type safety operation high and low voltage switch cabinet device as described in claim 1, it is characterised in that：The horizontal slider
It is set for cylinder.
8. built-in type safety operation high and low voltage switch cabinet device as described in any one of claim 1 to 7, it is characterised in that：Institute
The notch for stating built-in groove is equipped with cover board, and the cover board also serves as safety operation warning line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972388.0A CN106451107B (en) | 2016-10-28 | 2016-10-28 | Built-in type safety operation high and low voltage switch cabinet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972388.0A CN106451107B (en) | 2016-10-28 | 2016-10-28 | Built-in type safety operation high and low voltage switch cabinet device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451107A CN106451107A (en) | 2017-02-22 |
| CN106451107B true CN106451107B (en) | 2018-06-22 |
Family
ID=58180930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972388.0A Active CN106451107B (en) | 2016-10-28 | 2016-10-28 | Built-in type safety operation high and low voltage switch cabinet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451107B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8161631B1 (en) * | 2009-09-18 | 2012-04-24 | Finley Lee Ledbetter | Motor controlled bucket replacement tool |
| CN203734187U (en) * | 2014-03-25 | 2014-07-23 | 国家电网公司 | Device for clearing ice and snow on electrical equipment |
| CN104868389A (en) * | 2015-05-30 | 2015-08-26 | 国网山东济南市历城区供电公司 | High voltage switch cabinet door opening device |
| CN204662306U (en) * | 2015-03-12 | 2015-09-23 | 徐寅凯 | A kind of manual self locked energy-saving vehicle railing |
| CN205081024U (en) * | 2015-09-15 | 2016-03-09 | 国家电网公司 | Switch remote operation instrument in looped netowrk cabinet |
-
2016
- 2016-10-28 CN CN201610972388.0A patent/CN106451107B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8161631B1 (en) * | 2009-09-18 | 2012-04-24 | Finley Lee Ledbetter | Motor controlled bucket replacement tool |
| CN203734187U (en) * | 2014-03-25 | 2014-07-23 | 国家电网公司 | Device for clearing ice and snow on electrical equipment |
| CN204662306U (en) * | 2015-03-12 | 2015-09-23 | 徐寅凯 | A kind of manual self locked energy-saving vehicle railing |
| CN104868389A (en) * | 2015-05-30 | 2015-08-26 | 国网山东济南市历城区供电公司 | High voltage switch cabinet door opening device |
| CN205081024U (en) * | 2015-09-15 | 2016-03-09 | 国家电网公司 | Switch remote operation instrument in looped netowrk cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106451107A (en) | 2017-02-22 |
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