CN106486910A - Device at handtruck for dc circuit breaker - Google Patents
Device at handtruck for dc circuit breaker Download PDFInfo
- Publication number
- CN106486910A CN106486910A CN201610886434.5A CN201610886434A CN106486910A CN 106486910 A CN106486910 A CN 106486910A CN 201610886434 A CN201610886434 A CN 201610886434A CN 106486910 A CN106486910 A CN 106486910A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- handtruck
- cart body
- cabinet
- gripper shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses a kind of device at handtruck for dc circuit breaker, including go-cart body, lockable mechanism, brake separating mechanism and drive mechanism, go-cart bodies top is provided with the installation panel for installing dc circuit breaker, lockable mechanism is installed in the rear end installing panel by brake separating mechanism and drive mechanism, when go-cart body movement is to cabinet, lockable mechanism is locked with cabinet, drive mechanism is ordered about go-cart body and drives the movement of dc circuit breaker forward end to be docked with cabinet main bus-bar, when promoting brake separating mechanism, brake separating mechanism drives dc circuit breaker separating brake.This device at handtruck has simple to operate, and Labor-saving high-efficiency, small volume, interchangeability are good, safe, can improve docking reliability and the advantage of accuracy.
Description
Technical field
The invention mainly relates to the controller switching equipment in city rail tractive power supply system, more particularly, to a kind of disconnected for direct current
The device at handtruck of road device.
Background technology
City rail is greatly developed in domestic city, and the stability of its power supply unit, safety, interchangeability and maintainability are
Domestic power supply unit complete producer emphasis research and development content, wherein core component-direct current quick breaker and its corollary equipment
Safety, interchangeability and maintainability are important R＆D directions.
In conjunction with the circuit breaker cart version of domestic and international producer, it is broadly divided into two kinds；The first is exactly monoblock type, that is, directly
Stream chopper is fixed on cart frame as retaining element, fixes using with cabinet door, dc circuit breaker and control room integral type,
Operated as overall.The fast chopper handcart that the DC traction power-supply system of certain company external is adopted, using one
Formula is fixed, and cabinet door, fast chopper and handcart are integrated.Advance in the guide rail in cupboard below by directive wheel, handle
And interlocking mechanism is arranged in cabinet door, by people's thrust, whole mechanism is pushed in, so design overall weight weight, ground injustice
In the case of operate hard, and larger to the impulsive force of cupboard；Interlock easy maloperation on door；And structure needs
Space big, interlocking is simple, and interchangeability is too poor, and chopper breaks down and cannot be changed, when causing power failure at once
Between long so that whole station vehicle have a power failure stop transport, cause unnecessary social influence.Second is withdrawable version,
It is the pull-out type handcart version that current domestic manufacturer newly designs and develops use.The product of certain company domestic design, takes
Be withdrawable structure design, Qianmen, chopper, electrical equipment, interlock etc. are integrated on circuit breaker cart, when going out
During existing fault, trouble-free handcart directly can be changed, problem handcart is keeped in repair.Substantially increase electric power system
Interchangeability and maintainability.But it is exactly that structure space is big, operability is poor, and heavier-weight, complex structure, complex operation.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of simple to operate, Labor-saving high-efficiency,
Small volume, interchangeability are good, safe, can improve docking reliability and the handbarrow dress for dc circuit breaker of accuracy
Put.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of device at handtruck for dc circuit breaker, including go-cart body, lockable mechanism, brake separating mechanism and drive mechanism,
Described go-cart bodies top is provided with the installation panel for installing dc circuit breaker, and described lockable mechanism passes through brake separating mechanism and biography
Motivation structure is installed in the rear end installing panel, and when described go-cart body movement is to cabinet, described lockable mechanism is locked with cabinet,
Described drive mechanism is ordered about go-cart body and drives the movement of dc circuit breaker forward end to be docked with cabinet main bus-bar, promotes brake separating mechanism
When, brake separating mechanism drives dc circuit breaker separating brake.
Improvement further as technique scheme：
Described brake separating mechanism includes separating brake block, fixed block, the first guide post and back-moving spring, and described first guide post one end is passed through
Back-moving spring is connected with lockable mechanism, and the other end extends installation panel bottom, and described fixed block is affixed with installation panel bottom, institute
State separating brake block to be sleeved on the first guide post and affixed with fixed block, when promoting the first guide post, back-moving spring compresses, described point
Brake shoe promotes the separating brake switch separating brake of dc circuit breaker bottom, and when back-moving spring recovers deformation, described first guide post drives and divides
Brake shoe resets.
Described drive mechanism includes screw mandrel, transmission swivel nut and operation handle, and described transmission swivel nut is packed in installation panel bottom
Portion, described screw mandrel is installed on lockable mechanism and is threadeded with transmission swivel nut, and described operation handle is docked with screw mandrel end, turns
During dynamic operation handle, described transmission swivel nut drives go-cart body to move back and forth along screw mandrel.
Described drive mechanism also includes stroke direction board, and described stroke direction board is installed on lockable mechanism and extends installation
Above panel.
Described drive mechanism also includes two second guide posts and fairlead, and two described second guide posts set up separately in screw mandrel
Both sides, second guide post one end is affixed with lockable mechanism, and the other end is connected with the rear end of go-cart body by fairlead.
Described lockable mechanism includes the gripper shoe with inner chamber, and the two ends of described gripper shoe are provided with and can extend in cabinet framework
Telescopic bolt component, described first guide post and screw mandrel both pass through and set on the supporting plate.
Described telescopic bolt component includes dead bolt, lever and lock pin, buckle and extension spring, and described dead bolt is arranged on support
Plate end simultaneously extends its inner chamber, and described extension spring one end is connected with gripper shoe, and the other end is connected with dead bolt, described buckle one end with
Fagging is movably hinged, and the other end is connected with lock pin, and described lock pin wears on the supporting plate, before described lever is arranged in gripper shoe
End is simultaneously connected with dead bolt.
It is additionally provided with described gripper shoe and close the latch hook with cabinet door locking under door state in cabinet.
Described go-cart body is provided with multiple ball bearings in top both sides, sets in ball bearing sidepiece and is equiped with insulation restriction
Block, go-cart body is equiped with roller in bottom.
Electrical equipment installing plate and grounding copper bar, the front end both sides dress of go-cart bodies top are equiped with described go-cart body
It is provided with the handrail being easy to operate.
Compared with prior art, it is an advantage of the current invention that：
The device at handtruck for dc circuit breaker of the present invention, using stand-alone configuration, does not form overall structure with cabinet,
Do not form overall structure with cabinet door, significantly reduce the weight of whole handcart, its operation and maintenance is equal during practice
Very convenient, laborsaving and do not take up space；It is capable of the lock function of go-cart body and cabinet by lockable mechanism, can prevent by mistake
Operation, solves the problems, such as P.P, safe；Realized by drive mechanism go-cart body drive dc circuit breaker to
Front end is mobile to dock it is ensured that the reliability of electricity piece docking and accuracy with cabinet main bus-bar, time saving and energy saving；By separating brake machine
Structure realizes the separating brake of dc circuit breaker, improves safety；This device at handtruck is still a kind of withdrawable version, really
In every chassis, the movement locus in different supporting cabinets are consistent guarantor, can be by backing up identical handss when going wrong
Go-cart was changed within the time the shortest it is ensured that subway power supply is normal, the handbarrow ging wrong was keeped in repair, such side
Formula fully meets the requirement of interchangeability.
Brief description
Fig. 1 is the perspective view of the present invention.
Fig. 2 is the overlooking the structure diagram of original state of the present invention.
Fig. 3 is the overlooking the structure diagram of working condition of the present invention.
Fig. 4 is the attachment structure schematic diagram of lockable mechanism and brake separating mechanism and drive mechanism in the present invention.
Fig. 5 is mplifying structure schematic diagram at the A of Fig. 4.
Fig. 6 is mplifying structure schematic diagram at the B of Fig. 4.
Fig. 7 is the structural representation of lockable mechanism contraction state in the present invention.
Fig. 8 is the structural representation of lockable mechanism lock-out state in the present invention.
Fig. 9 is the main structure diagram of use state of the present invention.
Figure 10 is the overlooking the structure diagram of use state of the present invention.
The each label of in figure represents：
1st, go-cart body；11st, panel is installed；12nd, ball bearing；13rd, insulate confinement block；14th, roller；15th, installing plate；16th, connect
Ground copper bar；17th, handrail；2nd, lockable mechanism；21st, gripper shoe；22nd, telescopic bolt component；221st, dead bolt；222nd, lever；
223rd, lock pin；224th, buckle；225th, extension spring；23rd, latch hook；3rd, brake separating mechanism；31st, separating brake block；32nd, fixed block；33rd, the first guiding
Bar；34th, back-moving spring；4th, drive mechanism；41st, screw mandrel；42nd, it is driven swivel nut；43rd, operation handle；44th, stroke direction board；45th,
Two guide posts；46th, fairlead.
Specific embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
Fig. 1 to Figure 10 shows that the present invention is used for a kind of embodiment of the device at handtruck of dc circuit breaker, including go-cart
Body 1, lockable mechanism 2, brake separating mechanism 3 and drive mechanism 4, go-cart body 1 top is provided with the peace for installing dc circuit breaker
Dress panel 11, lockable mechanism 2 passes through brake separating mechanism 3 and drive mechanism 4 is installed in the rear end installing panel 11, and go-cart body 1 moves
When moving to cabinet, lockable mechanism 2 is locked with cabinet, and drive mechanism 4 orders about go-cart body 1 and drives dc circuit breaker forward end to move
Move and dock with cabinet main bus-bar, when promoting brake separating mechanism 3, brake separating mechanism 3 drives dc circuit breaker separating brake.The handbarrow dress of the present invention
Put, using stand-alone configuration, do not form overall structure with cabinet, also do not form overall structure with cabinet door, significantly reduce whole
The weight of handcart, during practice, its operation and maintenance is all very convenient, laborsaving and do not take up space；By lockable mechanism
2 lock functions being capable of go-cart body 1 and cabinet, can prevent maloperation, solve the problems, such as P.P, safety
High；Realized by drive mechanism 4 go-cart body 1 drive dc circuit breaker forward end mobile dock with cabinet main bus-bar it is ensured that
The reliability of electricity piece docking and accuracy are time saving and energy saving；Realize the separating brake of dc circuit breaker by brake separating mechanism 3, improve
Safety；This device at handtruck is still a kind of withdrawable version it is ensured that in every chassis in different supporting cabinets
Interior movement locus are consistent, and can be carried out more within the time the shortest by backing up identical handbarrow when going wrong
Change it is ensured that subway power supply is normal, the handbarrow ging wrong is keeped in repair, such mode fully meets wanting of interchangeability
Ask.
In the present embodiment, brake separating mechanism 3 includes separating brake block 31, fixed block 32, the first guide post 33 and back-moving spring 34, the
One guide post 33 one end is connected with lockable mechanism 2 by back-moving spring 34, and the other end extends installation panel 11 bottom, fixed block 32
Panel 11 bottom is affixed with installing, and separating brake block 31 is sleeved on the first guide post 33 and affixed with fixed block 32, promotes and first leads
During to bar 33, back-moving spring 34 compresses, and separating brake block 31 promotes the separating brake switch separating brake of dc circuit breaker bottom, and back-moving spring 34 is extensive
During complex deformation, the first guide post 33 drives separating brake block 31 to reset.In this structure, in working order, when needing separating brake, by outer
Portion one action bars promotes the first guide post 33, and the first guide post 33 orders about separating brake block 31 and moves along fixed block 32 forward end, separating brake
Block 31 can promote the separating brake of dc circuit breaker bottom to switch and realize separating brake, and to ensure safety, now back-moving spring 34 is in pressure
Contracting state, when back-moving spring 34 recovers deformation, the first guide post 33 drives separating brake block 31 to move realization to the back-end and automatically resets,
It is simple and practical.
In the present embodiment, drive mechanism 4 includes screw mandrel 41, transmission swivel nut 42 and operation handle 43, and transmission swivel nut 42 is fixedly mounted with
Panel 11 bottom is being installed, screw mandrel 41 is installed on lockable mechanism 2 and is threadeded with transmission swivel nut 42, operation handle 43 and silk
Bar 41 end is docked, and during rotating operation handle 43, transmission swivel nut 42 drives go-cart body 1 to move back and forth along screw mandrel 41.This structure
In, operation handle 43 is docked with screw mandrel 41 end, rotating operation handle 43, transmission swivel nut 42 can move back and forth along screw mandrel 41,
Thus realizing movement in cabinet for the go-cart body 1, it is simple for structure.
In the present embodiment, drive mechanism 4 also includes stroke direction board 44, and stroke direction board 44 is installed on lockable mechanism 2
And extend above installation panel 11.By stroke direction board 44 can effective control go-cart body 1 displacement so that go-cart this
The mobile docking stroke visualization of body 1, further increases accuracy and high efficiency.
In the present embodiment, drive mechanism 4 also includes two second guide posts 45 and fairlead 46, two second guide posts 45
Set up separately in screw mandrel 41 both sides, the second guide post 45 one end is affixed with lockable mechanism 2, the other end passes through fairlead 46 and go-cart body
1 rear end connects.Go-cart body 1 movement is further increased by the cooperation of this second guide post 45 and fairlead 46 smooth
Property, can prevent go-cart body 1 from shifting simultaneously.
In the present embodiment, lockable mechanism 2 includes the gripper shoe 21 with inner chamber, and the two ends of gripper shoe 21 are provided with and can extend cabinet
Intraskeletal telescopic bolt component 22, the first guide post 33 and screw mandrel 41 both pass through and are located in gripper shoe 21.In handbarrow dress
When putting in entrance cabinet, bolt component 22 is located at the inner chamber of gripper shoe 21, and further, operation bolt component 22 makes it from gripper shoe
21 inner chambers extend out in cabinet framework from two ends, thus realizing the locking with cabinet, its design is simply ingenious.
In the present embodiment, telescopic bolt component 22 includes dead bolt 221, lever 222 and lock pin 223, buckle 224 and draws
Spring 225, dead bolt 221 is arranged on gripper shoe 21 end and extends its inner chamber, and extension spring 225 one end is connected with gripper shoe 21, the other end
It is connected with dead bolt 221, buckle 224 one end and gripper shoe 21 are movably hinged, and the other end is connected with lock pin 223, and lock pin 223 is located in
In gripper shoe 21, lever 222 is arranged in gripper shoe 21 front end and is connected with dead bolt 221.In this structure, moving operation handle 222
Drive dead bolt 221 to move to gripper shoe 21 inner chamber, then clasp lever 222 by pushing lock pin 223 and ordering about buckle 224, now
Extension spring 225 is in extended state, and after device at handtruck enters in cabinet, then lifting lock pin 223 orders about buckle 224 and solves upwards
Lock, now extension spring 225 recovers deformation, and dead bolt 221 extend out in cabinet framework from gripper shoe 21 inner chamber, thus realizing and cabinet
Locking, its structure is simple, design is ingenious.
In the present embodiment, gripper shoe 21 is additionally provided with and closes the latch hook 23 with cabinet door locking under door state in cabinet.In cabinet
Close under door state, the vertical rod of its cabinet door can be clamp-oned in latch hook 23, thus when realizing self-lock turning off, only initial bit, latch hook 23 is
Occur loosening, now just can complete to open the door.
In the present embodiment, go-cart body 1 is provided with multiple ball bearings 12 in top both sides, sets dress in ball bearing 12 sidepiece
It is provided with insulation confinement block 13, go-cart body 1 is equiped with roller 14 in bottom.In this structure, it is equipped with guide rail, go-cart inside cabinet
Body 1 has ball bearing 12 with guide rail cooperation it is ensured that linear motion in top, and the roller 14 of bottom is divided into the forward foot in a step fixed
To wheel and rear foot universal wheel, to improve the convenience of movement；By insulating, confinement block 13 carries out spacing it is ensured that existing in every chassis
Movement locus in different supporting cabinets are consistent, and meet the requirement of interchangeability.
In the present embodiment, go-cart body 1 is equiped with electrical equipment installing plate 15 and grounding copper bar 16, go-cart body 1 pushes up
The front end both sides in portion are equiped with the handrail 17 being easy to operate.In this structure, panel 11, electrical equipment installing plate 15 and are installed in cooperation
Grounding copper bar 16, required electrical equipment and functional entity are integrated, can be identical by backing up when going wrong
Handbarrow changed within the time the shortest it is ensured that subway power supply is normal, the handbarrow ging wrong is keeped in repair, ground connection
Copper bar 16 can guarantee that the safety of operation, and handrail 17 is more conducive to operate.
Although the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.Any it is familiar with ability
The technical staff in domain, in the case of without departing from technical solution of the present invention scope, can be utilized the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (10)
1. a kind of device at handtruck for dc circuit breaker it is characterised in that：Including go-cart body（1）, lockable mechanism（2）、
Brake separating mechanism（3）And drive mechanism（4）, described go-cart body（1）Top is provided with the installation panel for installing dc circuit breaker
（11）, described lockable mechanism（2）By brake separating mechanism（3）And drive mechanism（4）It is installed in installation panel（11）Rear end, described
Go-cart body（1）When moving to cabinet, described lockable mechanism（2）With cabinet locking, described drive mechanism（4）Order about go-cart originally
Body（1）Drive the movement of dc circuit breaker forward end to dock with cabinet main bus-bar, promote brake separating mechanism（3）When, brake separating mechanism（3）Drive
Dc circuit breaker separating brake.
2. the device at handtruck for dc circuit breaker according to claim 1 it is characterised in that：Described brake separating mechanism
（3）Including separating brake block（31）, fixed block（32）, the first guide post（33）And back-moving spring（34）, described first guide post（33）
Back-moving spring is passed through in one end（34）With lockable mechanism（2）Connect, the other end extends installation panel（11）Bottom, described fixed block
（32）With installation panel（11）Bottom is affixed, described separating brake block（31）It is sleeved on the first guide post（33）Go up and and fixed block（32）
Affixed, promote the first guide post（33）When, back-moving spring（34）Compression, described separating brake block（31）Promote dc circuit breaker bottom
Separating brake switchs separating brake, back-moving spring（34）When recovering deformation, described first guide post（33）Drive separating brake block（31）Reset.
3. the device at handtruck for dc circuit breaker according to claim 2 it is characterised in that：Described drive mechanism
（4）Including screw mandrel（41）, transmission swivel nut（42）And operation handle（43）, described transmission swivel nut（42）It is packed in installation panel（11）
Bottom, described screw mandrel（41）It is installed in lockable mechanism（2）Upper and with transmission swivel nut（42）Threaded, described operation handle（43）
With screw mandrel（41）End is docked, rotating operation handle（43）When, described transmission swivel nut（42）Drive go-cart body（1）Along screw mandrel
（41）Move back and forth.
4. the device at handtruck for dc circuit breaker according to claim 3 it is characterised in that：Described drive mechanism
（4）Also include stroke direction board（44）, described stroke direction board（44）It is installed in lockable mechanism（2）Go up and extend installation panel
（11）Top.
5. the device at handtruck for dc circuit breaker according to claim 4 it is characterised in that：Described drive mechanism
（4）Also include two second guide posts（45）And fairlead（46）, two described second guide posts（45）Set up separately in screw mandrel（41）
Both sides, the second guide post（45）One end and lockable mechanism（2）Affixed, the other end passes through fairlead（46）With go-cart body（1）'s
Rear end connects.
6. the device at handtruck for dc circuit breaker according to any one of claim 3 to 5 it is characterised in that：Institute
State lockable mechanism（2）Including the gripper shoe with inner chamber（21）, described gripper shoe（21）Two ends be provided with and can extend in cabinet framework
Telescopic bolt component（22）, described first guide post（33）And screw mandrel（41）Both pass through and be located at gripper shoe（21）On.
7. the device at handtruck for dc circuit breaker according to claim 6 it is characterised in that：Described telescopic dead bolt
Assembly（22）Including dead bolt（221）, lever（222）And lock pin（223）, buckle（224）And extension spring（225）, described dead bolt
（221）It is arranged on gripper shoe（21）End simultaneously extends its inner chamber, described extension spring（225）One end and gripper shoe（21）Connect, another
End and dead bolt（221）Connect, described buckle（224）One end and gripper shoe（21）It is movably hinged, the other end and lock pin（223）Even
Connect, described lock pin（223）It is located in gripper shoe（21）On, described lever（222）It is arranged in gripper shoe（21）Front end and with lock
Tongue（221）Connect.
8. the device at handtruck for dc circuit breaker according to claim 7 it is characterised in that：Described gripper shoe（21）
On be additionally provided with and close latch hook with cabinet door locking under door state in cabinet（23）.
9. the device at handtruck for dc circuit breaker according to any one of claim 3 to 5 it is characterised in that：Institute
State go-cart body（1）It is provided with multiple ball bearings in top both sides（12）, in ball bearing（12）Sidepiece sets and is equiped with insulation limit
Clamp dog（13）, go-cart body（1）It is equiped with roller in bottom（14）.
10. the device at handtruck for dc circuit breaker according to claim 9 it is characterised in that：Described go-cart body
（1）On be equiped with electrical equipment installing plate（15）And grounding copper bar（16）, go-cart body（1）The front end both sides at top are equiped with just
Handrail in operation（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886434.5A CN106486910A (en) | 2016-10-11 | 2016-10-11 | Device at handtruck for dc circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886434.5A CN106486910A (en) | 2016-10-11 | 2016-10-11 | Device at handtruck for dc circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106486910A true CN106486910A (en) | 2017-03-08 |
Family
ID=58269606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610886434.5A Pending CN106486910A (en) | 2016-10-11 | 2016-10-11 | Device at handtruck for dc circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106486910A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493067A (en) * | 2018-05-09 | 2018-09-04 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type breaker |
| CN109494604A (en) * | 2018-11-26 | 2019-03-19 | 安徽中电兴发与鑫龙科技股份有限公司 | DC switch cabinet circuit breaker handcart |
| CN109494602A (en) * | 2018-11-26 | 2019-03-19 | 安徽中电兴发与鑫龙科技股份有限公司 | DC switch cabinet circuit breaker handcart mechanical interlock mechanism |
| CN109586200A (en) * | 2018-11-26 | 2019-04-05 | 安徽中电兴发与鑫龙科技股份有限公司 | Direct-current switch cabinet Multifunctional breaker handcart |
| CN111987631A (en) * | 2020-07-31 | 2020-11-24 | 许继集团有限公司 | Handcart for direct current breaker |
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| CN203690774U (en) * | 2013-12-11 | 2014-07-02 | 镇江大全赛雪龙牵引电气有限公司 | Handcart operation interlocking mechanism of middle-and-high voltage switch cabinet |
| CN105449569A (en) * | 2015-12-28 | 2016-03-30 | 温州兴机电器有限公司 | Direct-current traction trolley for motor car |
| CN205231591U (en) * | 2015-12-28 | 2016-05-11 | 温州兴机电器有限公司 | DC traction dolly with valve interlocking function |
| CN105914632A (en) * | 2016-05-10 | 2016-08-31 | 厦门理工学院 | Handcarrt structure |
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| CN102163814A (en) * | 2011-02-14 | 2011-08-24 | 天津保富电气有限公司 | Handcart of subway direct-current (DC) switch cabinet breaker |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493067A (en) * | 2018-05-09 | 2018-09-04 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type breaker |
| CN108493067B (en) * | 2018-05-09 | 2023-10-20 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type circuit breaker |
| CN109494604A (en) * | 2018-11-26 | 2019-03-19 | 安徽中电兴发与鑫龙科技股份有限公司 | DC switch cabinet circuit breaker handcart |
| CN109494602A (en) * | 2018-11-26 | 2019-03-19 | 安徽中电兴发与鑫龙科技股份有限公司 | DC switch cabinet circuit breaker handcart mechanical interlock mechanism |
| CN109586200A (en) * | 2018-11-26 | 2019-04-05 | 安徽中电兴发与鑫龙科技股份有限公司 | Direct-current switch cabinet Multifunctional breaker handcart |
| CN111987631A (en) * | 2020-07-31 | 2020-11-24 | 许继集团有限公司 | Handcart for direct current breaker |
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