CN107732746A - A kind of trolley type switch cabinet breaker trolley - Google Patents
A kind of trolley type switch cabinet breaker trolley Download PDFInfo
- Publication number
- CN107732746A CN107732746A CN201711137694.3A CN201711137694A CN107732746A CN 107732746 A CN107732746 A CN 107732746A CN 201711137694 A CN201711137694 A CN 201711137694A CN 107732746 A CN107732746 A CN 107732746A
- Authority
- CN
- China
- Prior art keywords
- trolley
- switch cabinet
- breaker
- lowering
- lifting
- 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.)
- Pending
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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
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- 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
- H02B1/52—Mobile units, e.g. for work sites
-
- 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
- H02B11/02—Details
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Trip Switchboards (AREA)
Abstract
The present invention relates to the technical field of power generation auxiliary equipment, more specifically, it is related to a kind of trolley type switch cabinet breaker trolley, including carrying platform, lifting pedestal, broad-adjustable transhipment guide rail, the horizontal mobile device for adjusting breaker horizontal level and the lowering or hoisting gear for adjusting breaker vertical position, the breaker is installed on the carrying platform, and two groups of transhipment guide rails are located at the both sides of the carrying platform；Screw mandrel is equipped between two groups of transhipment guide rails, screw mandrel is provided with the opposite external screw thread of two sections of hand of spiral, and transhipment guide rail is slidably connected with horizontal mobile device.The present invention aligns the horizontal level of high-tension switch cabinet by adjusting horizontal mobile device, and the vertical position of high-tension switch cabinet is aligned by the vertically movable lowering or hoisting gear of rotation and lifting crank, and contraposition is easy, it is not necessary to which repetition is aligned trolley push-and-pull；Operating efficiency is improved, and can avoid the rollover and its caused device damage or personal injury of circuit breaker trolley.
Description
Technical field
The present invention relates to the technical field of power generation auxiliary equipment, is used more particularly, to a kind of trolley type switch cabinet
Breaker trolley.
Background technology
Switch cubicle control has breaker, disconnecting switch, on-load switch, operating mechanism, transformer and various protection equipments
Push And Release.When breaker trolley moves testing position or isolated location to from operating position, cabinet door is closed automatically, is prevented
Maintenance personal's mistakenly entering charged chamber is only operated, causes personal safety accident, when breaker trolley is from testing position or isolated bit
Put when shifting operating position onto, cabinet door automatically opens up, and ensures that valve meets the gap of standard requirement to trolley contact arm, prevents
Only contact arm discharges valve, causes equipment safety accident.
However, current breaker trolley is unable to transverse shifting, aligned with high-tension switch cabinet difficult, it is impossible to once align
Success firmly pushes away forward, it is necessary to breaker trolley is pulled out again, and until being directed at fixed hole position, contraposition is difficult, efficiency
Low, breaker trolley is easily turned on one's side and causes device damage and personal injury；The lifting of trolley is by screw thread rotation
Mode realizes, threaded rod tooth is away from too small, and lifting speed is spent slowly, and efficiency is very low, and operation handle designs unreasonable, operating cost
Power, the level condition of breaker can not be observed during descending operation.In addition, the distance between trolley four wheels are too small,
During operation, circuit breaker trolley is integrally fixed above trolley, and the distance between the wheel of trolley is too small, runs into barrier
When, because center of gravity is higher, dolly easily turns over side.
The content of the invention
Being capable of transverse shifting and vertical motion, easily it is an object of the invention to overcome the deficiencies of the prior art and provide one kind
In the trolley type switch cabinet breaker trolley successfully aligned with high-tension switch cabinet.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
There is provided a kind of trolley type switch cabinet breaker trolley, including carrying platform, lifting pedestal, broad-adjustable transhipment are led
Rail, the horizontal mobile device for adjusting breaker horizontal level and the lowering or hoisting gear for adjusting breaker vertical position,
The breaker is installed on the carrying platform, and two groups of transhipment guide rails are located at the both sides of the carrying platform；The lifting dress
It is arranged between the carrying platform and the lifting pedestal, the horizontal mobile device is flexibly connected with the carrying platform；
Screw mandrel is equipped between two groups of transhipment guide rails, the screw mandrel is provided with the opposite external screw thread of two sections of hand of spiral, and the transhipment is led
Rail is slidably connected with the horizontal mobile device.
The trolley type switch cabinet breaker trolley of the present invention is small by the setting breaker of horizontal mobile device
Car being capable of transverse shifting so that and trolley and switch cubicle contraposition are easy, operating efficiency caused by avoiding circuit breaker trolley push-and-pull is low,
Turning over side causes equipment damage and personal injury；By the setting coarse adjustment carrying platform of lifting pedestal to desired position, then pass through
The vertical position of lowering or hoisting gear fine tuning carrying platform；Horizontal mobile device is relatively independent with lowering or hoisting gear so that circuit breaker trolley
Horizontal level and vertical position adjustment it is relatively independent, be easy to the contraposition of trolley and high-tension switch cabinet；By transporting guide rail
Between the setting of screw mandrel can adjust the distance between two groups of transhipment guide rails, its is applied to turning for the breaker of different model
Fortune, applied widely, simple to operate, operating efficiency is improved.
Further, the horizontal mobile device includes transverse shifting screw rod, guide rail and guide rail beam, and the guide rail is located at
On the guide rail beam；Connector is fixed with the lowering or hoisting gear, one end of the transverse shifting screw rod passes through the connection
Part is set with the transhipment guide rail contact.The motion of transverse shifting screw rod push rail opposite rail beam is rotated, so as to adjust transverse direction
The position of mobile device so that the lateral attitude of circuit breaker trolley and the horizontal level of high-tension switch cabinet align.
Preferably, the connector is provided with the horizon rule for being used for observing the horizontal mobile device levelness.Horizon rule
Setting personnel easy to operation observe the levelness of horizontal mobile device during hoist trolleys, guarantee circuit breaker trolley is not
It can be slided from horizontal mobile device.
Preferably, one end of the transverse shifting screw rod is provided with transverse shifting crank, the transverse shifting crank with it is described
Vertical connection sheet is connected between transverse shifting screw rod.Horizontal mobile device can be carried out laterally by rotating transverse shifting crank
It is mobile, it can easily realize the contraposition of trolley and high-tension switch cabinet, it is not necessary to which repetition is aligned trolley push-and-pull.
Preferably, the tongue button coordinated with door of switch cabinet is equipped with the carrying platform, one end of the tongue button is with opening
The connection of cabinet cabinet door is closed, the other end is provided with the stud for locking tongue button；It is provided between the tongue button and the carrying platform
Limit the extension spring that tongue button bit moves.After locking device on one end and door of switch cabinet of tongue button coordinates, locked by stud
The position of tongue button, so as to lock the position of breaker trolley.
Further, the lowering or hoisting gear includes lowering or hoisting gear beam, lifting platform support and lifting screw, the lifting dress
Put beam to be slidably connected with guide rail beam, the lifting screw is connected between the lowering or hoisting gear beam and lifting platform support, the liter
Drop platform support is connected with the lifting pedestal.It is the descending operation that lowering or hoisting gear can be achieved by rotation and lifting screw rod, lifts spiral shell
Bar is arranged at the corner of lowering or hoisting gear, adjusts the lifting screw at corner, horizon rule is observed, while vertical displacement is adjusted
Ensure that horizontal mobile device is horizontal, realize the accurate contraposition of trolley and high-tension switch cabinet, and ensure breaker not
Slided from horizontal mobile device.
Preferably, described lifting screw one end is provided with hi/local crank, is connected between the hi/local crank and the lifting screw
There is lateral connection piece.By rotation and lifting crank lowering or hoisting gear can be made easily to realize descending operation, while crank design more accords with
Man-machine efficacy is closed, is operated easily laborsaving.
Further, the lifting pedestal includes telescopic support, bottom plate and roller, and the roller is located at the bottom
The bottom of plate；The roller includes fixed wheel and universal wheel, and the universal wheel is provided with lock pedal and unblock pedal.Trolley
Front-wheel is fixed wheel, and trailing wheel is universal wheel, is easy to the movement of breaker trolley；When breaker trolley is moved to appropriate location
When, locking lock pedal；When needing the position of running circuit breaker trolley, stepping on unblock pedal can running circuit breaker handcart.
Further, the support includes the first support and second support being engaged, and is uniformly arranged in the first support
Some lug bosses are shown, the second support is provided with some and slotted eye of the raised portion fits.Adjust first support and the
The relative altitude of two supports, and first successive step breaker is coordinated by the projection in first support and the slotted eye in second support
Vertical height.
Preferably, vehicle uses the high strength steel and cold-rolled steel sheet of high intensity, by rational structure optimization, vehicle
Intensity is greatly improved.
Compared with prior art, the beneficial effects of the invention are as follows：
The trolley type switch cabinet breaker trolley of the present invention, horizontal mobile device pair is moved by rotating transverse shifting crank
The horizontal level of position high-tension switch cabinet, by the vertical position of lifting pedestal coarse adjustment breaker, passes through rotation and lifting crank fine tuning
The height of breaker, contraposition are easy, it is not necessary to which repetition is aligned trolley push-and-pull；By the rotation for transporting the screw mandrel between guide rail
The distance between two groups of transhipment guide rails can be adjusted to adapt to the transhipment of the breaker of different model；It is vertically movable in lowering or hoisting gear
When, keep horizontal mobile device to be horizontal by observing horizon rule, ensure that dolly will not be slided from horizontal mobile device
Under；By meeting transverse shifting crank and the setting of hi/local crank of man-machine efficacy, pass through horizontal mobile device and lowering or hoisting gear
Between transverse shifting bearing setting so that the movement of horizontal mobile device and the movement of lowering or hoisting gear are lighter, operation letter
Just, applied widely, operating efficiency is improved, and can avoid circuit breaker trolley rollover and its caused device damage or
Personal injury.
Brief description of the drawings
Fig. 1 is the trolley type switch cabinet breaker trolley stereogram of the present invention.
Fig. 2 is trolley type switch cabinet breaker trolley front view.
Fig. 3 is trolley type switch cabinet breaker trolley top view.
Fig. 4 is trolley type switch cabinet breaker trolley left view.
Fig. 5 is the enlarged diagram of local A in accompanying drawing 3.
Embodiment
With reference to embodiment, the present invention is further illustrated.Wherein, being given for example only property of accompanying drawing illustrates,
What is represented is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which the reality of the present invention is better described
Example is applied, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To those skilled in the art
For, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Same or analogous label corresponds to same or analogous part in the accompanying drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on accompanying drawing to have the orientation of the instructions such as term " on ", " under ", "left", "right" or position relationship
Shown orientation or position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore position relationship described in accompanying drawing
Term being given for example only property explanation, it is impossible to the limitation to this patent is interpreted as, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment 1
As Fig. 1 to 5 show the first embodiment of the trolley type switch cabinet breaker trolley of the present invention, including carrying platform
1st, lifting pedestal 2, broad-adjustable transhipment and are used for guide rail 3, the horizontal mobile device 4 for adjusting breaker horizontal level
The lowering or hoisting gear 5 of breaker vertical position is adjusted, breaker is installed on carrying platform 1, and two groups of transhipment guide rails 33 are located at carrying
The both sides of platform 1；Lowering or hoisting gear 5 is located between carrying platform 1 and lifting pedestal 2, and horizontal mobile device 4 is lived with carrying platform 1
Dynamic connection；Screw mandrel 6 is equipped between two groups of transhipment guide rails 3, screw mandrel 6 is provided with two segment length same-handeds outer spiral shell in opposite direction
Line, two groups of transhipment guide rails 3 are provided with the inner bolt hole being engaged with external screw thread, and transhipment guide rail 3 slides with horizontal mobile device 4 to be connected
Connect；In addition, the force application mechanisms such as crank can be set in one end of screw mandrel 6, screw mandrel 6 is driven to rotate by rotating crank, two groups of transhipments
Guide rail 3 is close to each other or remote, so as to reach the purpose of the distance between two groups of transhipment guide rails 3 of adjustment.
For the present embodiment when implementing, horizontal mobile device 4 adjusts the horizontal level of breaker so that trolley and switch cubicle
Contraposition is easy；By the setting coarse adjustment carrying platform 1 of lifting pedestal to desired position, then pass through the fine tuning of lowering or hoisting gear 5 carrying
The vertical position of platform 1；Horizontal mobile device 4 and lowering or hoisting gear 5 are relatively independent so that the horizontal level of circuit breaker trolley and perpendicular
Adjustment to position is relatively independent, is easy to the contraposition of trolley and high-tension switch cabinet；Screw mandrel 6 between rotation transhipment guide rail 3 can
With the distance between two groups of transhipment guide rails 3 of adjustment, it is set to be applied to the transhipment of the breaker of different model.
Wherein, as shown in Figure 1 to Figure 2, horizontal mobile device 4 includes transverse shifting screw rod 41, guide rail 42 and guide rail beam
43, guide rail 42 is fixed at guide rail beam 43, and connector 44 is fixed with lowering or hoisting gear 5；Wear one end of transverse shifting screw rod 41
Cross connector 44 and contact setting with transhipment guide rail 3, connector 44 is provided with the level for being used for observing the levelness of horizontal mobile device 4
Chi 45；One end of transverse shifting screw rod 41 is provided with transverse shifting crank 46, transverse shifting crank 46 and transverse shifting screw rod 41 it
Between be connected with vertical connection sheet 47；Transverse shifting can be carried out to horizontal mobile device 4 by rotating transverse shifting crank 46 so that open circuit
The lateral attitude of device dolly and the horizontal level of high-tension switch cabinet align.
As shown in Fig. 2 lowering or hoisting gear 5 includes lowering or hoisting gear beam 51, lifting platform support 52 and lifting screw 53, lifting dress
Put beam 51 to be slidably connected with guide rail beam 43, lifting screw 53 is connected between lowering or hoisting gear beam 51 and lifting platform support 52, lifting
Platform support 52 is connected with lifting pedestal 2；The one end of lifting screw 53 is provided with hi/local crank 54, between hi/local crank 54 and lifting screw 53
It is connected with lateral connection piece 55.Rotation and lifting crank 54 can make lowering or hoisting gear easily realize descending operation, the liter in the present embodiment
Drop screw rod 54 is arranged at the corner of lowering or hoisting gear, adjusts the lifting screw at corner, observes horizon rule 45, is adjusting vertical position
Ensure that horizontal mobile device 4 is horizontal while shifting, realize the accurate contraposition of trolley and high-tension switch cabinet, and ensure
Breaker does not slide from horizontal mobile device.
As shown in figure 1, lifting pedestal 2 includes telescopic support, bottom plate 22 and roller, roller is located at the bottom of bottom plate 22
Portion；Roller includes fixed wheel 23 and universal wheel 24, and universal wheel is provided with lock pedal 25 and unblock pedal 26；Support includes being engaged
First support 27 and second support 28, it is evenly distributed in first support 27 to have some lug bosses, if second support 28 is provided with
The dry slotted eye with raised portion fits.The relative altitude of first support 27 and second support 28 is adjusted, and by first support 27
Projection coordinate the vertical height of just successive step breaker with the slotted eye in second support 28.
In addition, as shown in Figures 3 to 5, the tongue button 11 coordinated with door of switch cabinet, tongue button 11 are equipped with carrying platform 1
One end be connected with door of switch cabinet, the other end be provided with for locking tongue button 11 stud 12；Tongue button 11 and carrying platform 1
Between the extension spring 13 of the restricted displacement of tongue button 11 is set.After locking device on one end and door of switch cabinet of tongue button 11 coordinates, lead to
The position of the locking tongue button 11 of stud 12 is crossed, so as to lock the position of breaker trolley.
Horizontal mobile device 4, lowering or hoisting gear 5 and lifting pedestal in the present embodiment are cold-rolled steel sheet structure.Vehicle
Intensity be greatly improved.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (10)
1. a kind of trolley type switch cabinet breaker trolley, it is characterised in that including carrying platform（1）, lifting pedestal（2）、
Broad-adjustable transhipment guide rail（3）, horizontal mobile device for adjusting breaker horizontal level（4）And for adjusting open circuit
The lowering or hoisting gear of device vertical position（5）, the breaker is installed on the carrying platform（1）On, two groups of transhipment guide rails（3）It is located at
The carrying platform（1）Both sides；The lowering or hoisting gear（5）Located at the carrying platform（1）With the lifting pedestal（2）It
Between, the horizontal mobile device（4）With the carrying platform（1）It is flexibly connected；Two groups of transhipment guide rails（3）Between be equipped with screw mandrel
（6）, the screw mandrel（6）It is provided with the opposite external screw thread of two sections of hand of spiral, the transhipment guide rail（3）Filled with the transverse shifting
Put（4）It is slidably connected.
2. trolley type switch cabinet breaker trolley according to claim 1, it is characterised in that the transverse shifting dress
Put（4）Including transverse shifting screw rod（41）, guide rail（42）And guide rail beam（43）, the guide rail（42）Located at the guide rail beam
（43）On；The lowering or hoisting gear（5）On be fixed with connector（44）, the transverse shifting screw rod（41）One end through described
Connector（44）With the transhipment guide rail（3）Contact is set.
3. trolley type switch cabinet breaker trolley according to claim 2, it is characterised in that the connector（44）
It is provided with and is used to observe the horizontal mobile device（4）The horizon rule of levelness（45）.
4. trolley type switch cabinet breaker trolley according to claim 3, it is characterised in that the transverse shifting spiral shell
Bar（41）One end be provided with transverse shifting crank（46）, the transverse shifting crank（46）With the transverse shifting screw rod（41）It
Between be connected with vertical connection sheet（47）.
5. the trolley type switch cabinet breaker trolley according to any one of Claims 1-4, it is characterised in that described
Carrying platform（1）On be equipped with door of switch cabinet coordinate tongue button（11）, the tongue button（11）One end be connected with switch cubicle,
The other end, which is provided with, is used for locking tongue button（11）Stud（12）；The tongue button（11）With the carrying platform（1）Between set
The extension spring that restricted tongue button bit moves（13）.
6. trolley type switch cabinet breaker trolley according to claim 1, it is characterised in that the lowering or hoisting gear
（5）Including lowering or hoisting gear beam（51）, lifting platform support（52）And lifting screw（53）, the lowering or hoisting gear beam（51）With guide rail
Beam（43）It is slidably connected, the lifting screw（53）It is connected to the lowering or hoisting gear beam（51）With lifting platform support（52）Between,
The lifting platform support（52）With the lifting pedestal（2）Connection.
7. trolley type switch cabinet breaker trolley according to claim 6, it is characterised in that the lifting screw
（53）One end is provided with hi/local crank（54）, the hi/local crank（54）With the lifting screw（53）Between be connected with lateral connection piece
（55）.
8. trolley type switch cabinet breaker trolley according to claim 1, it is characterised in that the lifting pedestal
（2）Including telescopic support, bottom plate（22）And roller, the roller are located at the bottom plate（22）Bottom；The roller
Including fixed wheel（23）And universal wheel（24）, the universal wheel（24）It is provided with pedal of locking（25）With unlocking pedal（26）.
9. trolley type switch cabinet breaker trolley according to claim 8, it is characterised in that the support includes phase
The first support of cooperation（27）With second support（28）, the first support（27）It is upper it is evenly distributed have some lug bosses, it is described
Second support（28）It is provided with some and slotted eye of the raised portion fits.
10. trolley type switch cabinet breaker trolley according to claim 1, it is characterised in that the transverse shifting
Device（4）, lowering or hoisting gear（5）And lifting pedestal（2）It is cold-rolled steel sheet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137694.3A CN107732746A (en) | 2017-11-16 | 2017-11-16 | A kind of trolley type switch cabinet breaker trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711137694.3A CN107732746A (en) | 2017-11-16 | 2017-11-16 | A kind of trolley type switch cabinet breaker trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107732746A true CN107732746A (en) | 2018-02-23 |
Family
ID=61216922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711137694.3A Pending CN107732746A (en) | 2017-11-16 | 2017-11-16 | A kind of trolley type switch cabinet breaker trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107732746A (en) |
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| CN109217154A (en) * | 2018-10-12 | 2019-01-15 | 国家电网有限公司 | A kind of high-voltage handcart switch transports and inspection trolley |
| CN109625051A (en) * | 2018-12-17 | 2019-04-16 | 国家电网有限公司 | 10kV central switch cabinet transport carriage |
| CN109842049A (en) * | 2019-01-10 | 2019-06-04 | 国网浙江临海市供电有限公司 | A kind of general handcart for transporting in transformer substation switch room |
| CN110040654A (en) * | 2019-04-30 | 2019-07-23 | 深圳供电局有限公司 | Transfer trolley |
| CN110401129A (en) * | 2018-04-25 | 2019-11-01 | 广东电网有限责任公司 | A kind of adjustable fixed foot prop suitable for operating trolley |
| CN111559300A (en) * | 2020-04-23 | 2020-08-21 | 广东电网有限责任公司 | Switch cabinet overhauling transfer trolley and posture adjusting method thereof |
| CN111746606A (en) * | 2020-06-19 | 2020-10-09 | 莆田学院 | Multifunctional circuit breaker transfer cart |
| CN111845874A (en) * | 2020-06-19 | 2020-10-30 | 莆田学院 | Overturn-preventing transfer trolley |
| CN111942451A (en) * | 2020-08-28 | 2020-11-17 | 国网河南省电力公司濮阳供电公司 | Handcart switch cart with adjustable size |
| CN112582929A (en) * | 2020-11-24 | 2021-03-30 | 国网山东省电力公司惠民县供电公司 | Transfer device and transfer method for circuit breaker |
| CN112864919A (en) * | 2021-01-13 | 2021-05-28 | 南京鼎臻智能电气有限公司 | General type cubical switchboard overhauls dolly |
| CN113602337A (en) * | 2021-08-06 | 2021-11-05 | 深圳供电局有限公司 | Circuit breaker transfer trolley |
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| CN115459126A (en) * | 2022-08-27 | 2022-12-09 | 国网新疆电力有限公司乌鲁木齐供电公司 | Switch cabinet breaker transfer trolley capable of realizing multi-position test |
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| CN116924279A (en) * | 2023-09-19 | 2023-10-24 | 宁德时代新能源科技股份有限公司 | Jacking mechanism and assembling mechanism for battery pack |
| CN117105089A (en) * | 2023-08-30 | 2023-11-24 | 华能济宁运河发电有限公司 | High-voltage circuit breaker installation equipment |
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| CN109625051A (en) * | 2018-12-17 | 2019-04-16 | 国家电网有限公司 | 10kV central switch cabinet transport carriage |
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