CN105244788B - The special lifting service kit of handcart circuit breaker in a kind of switch gear room - Google Patents

The special lifting service kit of handcart circuit breaker in a kind of switch gear room Download PDF

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Publication number
CN105244788B
CN105244788B CN201510660898.XA CN201510660898A CN105244788B CN 105244788 B CN105244788 B CN 105244788B CN 201510660898 A CN201510660898 A CN 201510660898A CN 105244788 B CN105244788 B CN 105244788B
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CN
China
Prior art keywords
branch pipe
force
arm
support
switch gear
Prior art date
Application number
CN201510660898.XA
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Chinese (zh)
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CN105244788A (en
Inventor
葛景璞
金超
张伟
左雷鹏
王贺英
孙林
郑帅
卢保民
张恒锐
李学军
刘树元
Original Assignee
国家电网公司
国网河北省电力公司
国网河北省电力公司保定供电分公司
Priority date (The priority date 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 date listed.)
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Priority to CN201510660898.XA priority Critical patent/CN105244788B/en
Publication of CN105244788A publication Critical patent/CN105244788A/en
Application granted granted Critical
Publication of CN105244788B publication Critical patent/CN105244788B/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/16Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements

Abstract

The present invention provides the special lifting service kit of handcart circuit breaker in a kind of switch gear room, including pedestal, for providing support;Upright bar, mounted on the upper end of the pedestal;The arm of force, one end of the arm of force and the top of the upright bar are articulated and connected;Hook, connect with the other end of the arm of force;And hydraulic pump, between the upright bar and the arm of force, for providing lifting force.The special lifting service kit of handcart circuit breaker changes the large scale hoisting machineries such as conventional cranes, fork truck and cannot be introduced into the present situation that switch gear room's rival car breaker is overhauled in switch gear room provided by the invention, special lifting service kit provided by the invention is when transportational process and disengaging switch gear room, it can be folded up, be carried and moved by the form for reducing its volume;When special lifting service kit is moved to switch gear room, the maintenance for realizing rival car breaker is spread out as needed.

Description

The special lifting service kit of handcart circuit breaker in a kind of switch gear room
Technical field
The invention belongs to apparatus for examination and repair technical field, specifically, the present invention relates to handcart circuit breakers in a kind of switch gear room Special lifting service kit.
Background technology
Handcart circuit breaker is the power equipment being commonly used in switch gear room, and its quantity is in rising trend.According to correlation The defects of statistics, handcart circuit breaker occurs, has 30% in the bottom of handcart type breaker, these defects include the machinery in chassis Partly, electric loop and the insulated tension pole of breaker bottom, arc-chutes, buffer etc., being needed when handling such defect will be disconnected Road device is transferred on the ground from handcart or fell in fixed platform.Since breaker is all-metal material, monomer weight 180~ 250kg, handcart height in 80cm or so, and in switch gear room narrow space and surrounding be all charging equipment, the large sizes such as crane, fork truck Hoisting machinery cannot enter, so when drawbacks described above occurs for handcart circuit breaker, service work personnel be needed to lean on manpower by hand Vehicle breaker is moved down from handcart fell after carry out service work.6 service personnel's collaborations are at least needed in this handling process Cooperation, and easily slip out of the hand, the serious consequence that equipment is broken and injures service personnel by a crashing object is caused, this work exists great Security risk.
The lifting maintenance unit about breaker is had appeared on the market, if the applying date is December 11 in 2009 Day, application No. is the 200920144399.5, patent document of entitled " large-current high-voltage circuit breaker boom hoisting ", play lifting The platform sling ontology put is equipped with the screw hole that may be mounted on large-current high-voltage AC circuit breaker frame, and the platform sling ontology is straight Angle triangle, the middle part hollow out of the platform sling ontology, formed there are three different location lifting point, the two of the platform sling ontology A right-angle side is equipped with the flange perpendicular with the platform sling body plane;It is lifted by crane using the large-current high-voltage circuit breaker of the patent document Device, since which employs triangular structures so that the security performance of platform sling is reliable, and stability is high, and lifting breaker weight reaches 800Kg, and hollow out so as to alleviate hoisting board weight, also makes its easy for installation in the middle part of the platform sling;It but can be from the patent It is immediately arrived in file, the boom hoisting of the patent document is only used for lifting by crane breaker, does not have in terms of to overhaul of line breaker There is the data that any value must be used for reference.For another example the applying date on December 16th, 2011, application No. is 201120531587.0, it is entitled The patent document of " circuit breaker chassis erecting device ", the erecting device include the pedestal that bottom is equipped with wheel, and pedestal is equipped with Two are mutually parallel and channel steel shape vertical pillars that notch is opposite, and cylinder either oil cylinder cylinder or oil are equipped between two columns Cylinder is fixed with lifting frame etc., which can utilize cylinder or oil cylinder lifting breaker, realize that one man operation reduces labor Power improves production efficiency;But the erecting device be suitable only for installation breaker when, the handcart into switch gear room can not be used for reference In the maintenance of breaker, narrow space and surrounding is all charging equipment in switch gear room, crane, fork truck (such as breaker ground jiggering peace Assembling device) etc. large scale hoisting machineries cannot enter.
Invention content
The purpose of the present invention is to provide a kind of special lifting service kit of handcart circuit breaker in switch gear room, at least to solve The large scale hoisting machineries such as crane of the existing technology, fork truck cannot be introduced into the technology that switch gear room's rival car breaker is overhauled Problem.
To solve the above-mentioned problems, the present invention provides the special lifting service kit of handcart circuit breaker in a kind of switch gear room, Technical solution is as follows:
The special lifting service kit of handcart circuit breaker in a kind of switch gear room, including pedestal, for providing support;Upright bar, peace Mounted in the upper end of the pedestal;The arm of force, one end of the arm of force and the top of the upright bar are articulated and connected;Hook, with the power The other end connection of arm;And hydraulic pump, between the upright bar and the arm of force, for providing lifting force.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:Further include multiple ten thousand To wheel, the universal wheel is arranged on the lower end of pedestal.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:Further include multiple brakes Vehicle device, multiple brakes are arranged in a one-to-one correspondence with multiple universal wheels, for being limited to the universal wheel.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:The pedestal includes Support base;Support carriers are articulated and connected with the support base;And limit shaft, for support when the support carriers It is limited.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:In the branch support group Seat is equipped with limiting stand, is limited for the support carriers of doubling poststack.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:The support base It for frame structure, is made of four branch pipes, one end of the second branch pipe and third branch pipe is fixedly connected with the first branch pipe, the second branch pipe It is connect with the other end of third branch pipe with the 4th branch pipe.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:Second branch pipe It is less than second branch pipe and the third branch pipe described the with distance of the third branch pipe between first branch pipe The distance between four branch pipes.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:The support carriers For two supporting rods, a supporting rod is articulated and connected with second branch pipe, another supporting rod and the third Branch pipe is articulated and connected.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:The arm of force is can The flexible arm of force.
The special lifting service kit of handcart circuit breaker in switch gear room as described above, further preferably:The hydraulic pump is Hydraulic hand-pump.
Analysis is it is found that compared with prior art, the advantages of the present invention are:
First, the special lifting service kit of handcart circuit breaker changes conventional cranes, fork truck in switch gear room provided by the invention Large scale hoisting machineries is waited to cannot be introduced into the present situation that switch gear room's rival car breaker is overhauled, special lifting inspection provided by the invention Tool is repaiied when transportational process and disengaging switch gear room, can be folded up, be carried out by the form for reducing its volume It carries and mobile;When special lifting service kit is moved to switch gear room, spreads out realize rival car open circuit as needed The maintenance of device.The expansion of its folded portion can be stablized when actually lifting by crane breaker and lift by crane breaker, land by service kit To inspection platform, service work is completed.Service personnel's quantity is greatly reduced in this way, reduces the wind that staff is injured Danger, improves work efficiency.
2nd, multiple universal wheels that the present invention is set can when needed carry out special lifting service kit It is mobile.
3rd, the pedestal is divided into the support base and the support carriers by the present invention, in this way in special lifting maintenance Sufficiently large support force when tool use is provided, occupied space is saved when not in use in specially lifting service kit.
4th, the support base is set as frame structure by the present invention, can again be mitigated while intensity requirement is met The overall weight of special lifting service kit.
Description of the drawings
Fig. 1 is the structure diagram of the special lifting service kit of handcart circuit breaker in the switch gear room of the preferred embodiment of the present invention (during use).
Fig. 2 is the structure diagram of the special lifting service kit of handcart circuit breaker in the switch gear room of the preferred embodiment of the present invention (during folding).
Fig. 3 is the structure diagram of the support base of the preferred embodiment of the present invention.
In figure, 1- hydraulic pumps;The 2- arm of forces;3- universal wheels;4- support bases;41- limiting stands;The first branch pipes of 42-;421- One fixed point;The second fixed points of 422-;The second branch pipes of 43-;44- third branch pipes;The 4th branch pipes of 45-;5- support carriers;6- is stood Bar;7- is linked up with;The first articulated shafts of 8-;9- limit shafts;The second articulated shafts of 10-.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the special lifting service kit of handcart circuit breaker mainly wraps in the switch gear room of the preferred embodiment of the present invention Pedestal is included, for providing support;Upright bar 6, mounted on the upper end of pedestal;The arm of force 2, one end and the top of upright bar 6 of the arm of force 2 are hinged Connection;Hook 7, connect with the other end of the arm of force 2;With hydraulic pump 1, between upright bar 6 and the arm of force 2, for providing lifting Power.In the present invention, the arm of force 2 and upright bar 6 are hingedly connected together by the second articulated shaft 10.
To sum up, in switch gear room provided by the invention handcart circuit breaker it is special lifting service kit can with onsite application, And it is easy to carry, have the characteristics that reliable and practical.The present invention will be connected, and again between upright bar 6 and the arm of force 2 using articulated manner Be connected between upright bar 6 and the arm of force 2 by a hydraulic pump 1, can be raised in this way by the stretching of the hydraulic stem of hydraulic pump 1 or Person reduces the arm of force 2, disclosure satisfy that the actual needs of handcart, furthermore, it when not in use, can be complete by the hydraulic stem of hydraulic pump 1 It is retracted in the ontology of hydraulic pump 1, forms be folded at this time, reduce occupied space;Invention also saves manpower, contractings It the short repair time, improves work efficiency.
In order to facilitate the movement of the special lifting service kit of the present invention, as shown in Figure 1, the invention also includes multiple universal Wheel 3, universal wheel 3 is arranged on the lower end of pedestal.In this way, when needing to move special lifting service kit, as long as pushing Upright bar 6 or pedestal can be achieved with the movement of whole special lifting service kit, in this case with regard to that can use manpower and material resources sparingly, Special lifting service kit is moved without too many people.Further preferably:Multiple brakes (not shown) are further included, it is multiple Brake is arranged in a one-to-one correspondence with multiple universal wheels 3, for being limited to universal wheel 3.It is needing to examine special lifting in this way When repairing tool movement, restriction of the brake to universal wheel 3 is released, can just carry out the movement of special lifting service kit;Split It when closing indoor handcart circuit breaker and being overhauled, needs to fix special lifting service kit at this time, using brake by universal wheel 3 It limits, with regard to that can fix special lifting service kit.
When special lifting check man has use, when also having for use, when in use, it should make the support of pedestal Space is larger could to provide enough support forces;But treating that the used time considers the problems of to save space again;Based on this, as Fig. 1, Shown in Fig. 2, pedestal of the invention includes support base 4, and support base 4 is used to provide main support;Support carriers 5, with support Pedestal 4 is articulated and connected, and support carriers 5 are used to provide Auxiliary support;It is parallel with support carriers 5 in support base 4 with limit shaft 9 During placement while playing Auxiliary support (namely support carriers 5), for being limited to support carriers 5.In the present invention, it supports Pedestal 4 and support carriers 5 are hingedly connected together by the first articulated shaft 8.As shown in Figure 1 and Figure 2, preferably in support base 4 Limiting stand 41 is equipped with, is limited for the support carriers 5 of doubling poststack.In order to when support carriers 5 are kept flat or The movement of special lifting service kit can be realized during folding, as shown in Figure 1 and Figure 2, universal wheel 3 of the invention is six, In four lower sections for being arranged on support base 4;Other two is arranged on the end of support carriers 5.
Under the premise of it disclosure satisfy that intensity requirement, it is contemplated that how to mitigate weight, based on this, as shown in Figure 1, Figure 3, The support base 4 of the present invention is frame structure, and including the first branch pipe 42, two fixing points (i.e. the are equipped on the first branch pipe 42 One fixed point 421 and the second fixed point 422);Preferably the first branch pipe 42 is divided into three parts by two fixing points;Second branch pipe 43, the connection of the second branch pipe 43 and the first branch pipe 42 is realized in the fixed point fixation of one end and the first branch pipe 42;Third branch The connection for realizing third branch pipe 44 and the first branch pipe 43 is fixed by another bearing of pipe 44, one end and the first branch pipe 42;4th Branch pipe 45, the other end of the both ends of the 4th branch pipe 45 respectively with the other end of the second branch pipe 43 and third branch pipe 44 are fixedly connected. Further preferably the distance between two fixing points of the first branch pipe 42 are 50cm, and the length of the 4th branch pipe 45 is 90cm.It adopts Setting (i.e. open type is set) in this way, can meet integral strength needs.The support carriers 5 of the present invention are for two with support Bar, a supporting rod are articulated and connected with the second branch pipe 43, and another supporting rod is articulated and connected with third branch pipe 44.The institute of the present invention Support carriers 5 are designed as two supporting rods, support carriers 5 can up be rolled over again while by 2 times foldings of the arm of force, two can Foldover design so that entire special lifting service kit occupies little space, and can also flexibly be moved in small space.
Position is mounted in order to realize to encounter ground during 2 times foldings of the arm of force and hook 7 can be made to reach best, The arm of force 2 of the present invention is the scalable arm of force.In this way can be fixed in pedestal, by controlling the flexible come real of the arm of force 2 Now to the control of hook 7.Preferably the arm of force 2 includes matrix bar (not shown) and telescopic rod (not shown), and telescopic rod is slideable It is plugged in matrix bar, hook 7 is articulated at the external part of telescopic rod.In the case where combining can the stretching of the arm of force 2, this hair Bright maximum sling height reaches 235cm.
In the present invention, hydraulic pump 1 be hydraulic hand-pump, in narrow space, using hydraulic hand-pump be more conducive to pair The control of field condition.The energy of the hydraulic pump of the present invention can reach 8t;The ontology of hydraulic pump 1 is made for square steel, hydraulic pump 1 The length and width of ontology be respectively 60mm and 70mm.In order to which hydraulic pump is made to provide enough energy, the sheet of hydraulic pump 1 of the present invention Body thickness is 3mm.In this way when hydraulic pump 1 folds, the characteristics of flexibly transporting, occupying little space can be realized.
In the present invention, the first articulated shaft 8 and the second articulated shaft 10 are the steel pivot pins of a diameter of 15mm, in this way can be with Fully ensure that load bearing stength.Furthermore in order to load-bearing sufficient intensity, universal wheel 3 of the invention is the steel ten thousand of a diameter of 8cm To wheel.
As shown in Figure 1 and Figure 2, the course of work of the present invention is described in further details.
When the special lifting service kit of handcart circuit breaker is idle in switch gear room, as shown in Fig. 2, the telescopic rod of the arm of force 2 returns It is reduced in the matrix bar of the arm of force 2, while the extension bar of hydraulic pump 1 is bounced back in the ontology of hydraulic pump 1;Support carriers 5 pass through The effect of one articulated shaft 8 is up rolled over, and is fallen at the limiting stand 41 of support base 4;It can thus be seen that the present invention is using manually Hydraulic pump 1 is used as power output, carries out slinging work using lever principle, is positively retained at the height of needs;It is adopted in base bottom The universal wheel 3 (landing after folding for 4 universal wheels 3) for having brake function with 6, realizes firm support;The arm of force 2 has 4 A adjusting position according to the size of lifting weight of object, can carry out flexible modulation;Entirety employs pivot pin modular design (the One articulated shaft 8 and the second articulated shaft 10), detachably, flexibly and easily;Primary load bearing support (support base 4 and support carriers 5) uses Foldable design, occupies little space, and can flexibly be moved in small space.
When the special lifting service kit of handcart circuit breaker works in switch gear room, as shown in Figure 1, the 2 of 5 bottom of support carriers A universal wheel 3 lands, and realizes more firm supporting role;The height that the hydraulic stem of hydraulic pump 1 is as needed is stretched out, the arm of force 2 Length as needed stretches out, you can completes work as the case may be;After the completion of work, and can be by hand in switch gear room When the special lifting service kit of vehicle breaker is folded into idle state.
Analysis is it is found that compared with prior art, the advantages of the present invention are:
First, the special lifting service kit of handcart circuit breaker changes conventional cranes, fork truck in switch gear room provided by the invention Large scale hoisting machineries is waited to cannot be introduced into the present situation that switch gear room's rival car breaker is overhauled, special lifting inspection provided by the invention Tool is repaiied when transportational process and disengaging switch gear room, can be folded up, be carried out by the form for reducing its volume It carries and mobile;When special lifting service kit is moved to switch gear room, spreads out realize rival car open circuit as needed The maintenance of device.The expansion of its folded portion can be stablized when actually lifting by crane breaker and lift by crane breaker, land by service kit To inspection platform, service work is completed.Service personnel's quantity is greatly reduced in this way, reduces the wind that staff is injured Danger, improves work efficiency.
2nd, the present invention is provided with multiple universal wheels 3, and special lifting service kit can be moved when needed It is dynamic.
3rd, pedestal is set as support base 4 and support carriers 5 by the present invention, is used in this way in specially lifting service kit When sufficiently large support force is provided, specially lifting service kit save occupied space when not in use.
4th, support base 4 is set as frame structure by the present invention, can again be alleviated while intensity requirement is met specially The overall weight of door lifting service kit.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature Case is realized.Therefore, embodiment disclosed above, all things considered are all merely illustrative, not the only.Institute Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.

Claims (1)

1. a kind of special lifting service kit of handcart circuit breaker in switch gear room, which is characterized in that including:
Pedestal, for providing support;
Upright bar, mounted on the upper end of the pedestal;
The arm of force, one end of the arm of force and the top of the upright bar are articulated and connected;
Hook, connect with the other end of the arm of force;With
Hydraulic pump, between the upright bar and the arm of force, for providing lifting force;
Multiple universal wheels are further included, the universal wheel is arranged on the lower end of pedestal;Multiple brakes, multiple brakes with it is more A universal wheel is arranged in a one-to-one correspondence, for being limited to the universal wheel;The universal wheel is the steel ten thousand of diameter 8cm To wheel;Wherein;
The hydraulic pump is hydraulic hand-pump;The ontology of the hydraulic pump is made for square steel, the length and width difference of the ontology of hydraulic pump For 60mm and 70mm, the body thickness of hydraulic pump is 3mm;The energy of hydraulic pump reaches 8t;
The pedestal includes:
Support base;
Support carriers are articulated and connected with the support base;With
Limit shaft, for support when the support carriers limit;
Limiting stand is equipped in the support base, is limited for the support carriers of doubling poststack;
The support base is frame structure, is made of four branch pipes, one end of the second branch pipe and third branch pipe and the first branch pipe It is fixedly connected, the other end of the second branch pipe and third branch pipe is connect with the 4th branch pipe;
The distance of second branch pipe and the third branch pipe between first branch pipe be less than second branch pipe with it is described Distance of the third branch pipe between the 4th branch pipe;Second branch pipe and the third branch pipe are between first branch pipe Distance for 50cm, the distance of second branch pipe and the third branch pipe between the 4th branch pipe is 90cm;
The support carriers are two supporting rods, and a supporting rod is articulated and connected with second branch pipe, described in another Supporting rod is articulated and connected with the third branch pipe;The limit shaft is located at the junction position of the second branch pipe and the 4th branch pipe;Branch Support group seat and support carriers are hingedly connected together by the first articulated shaft;First articulated shaft is located on the second branch pipe, and first Articulated shaft is between the 4th branch pipe and the first branch pipe;Limiting stand is located on the second branch pipe, and limit dais is in the first articulated shaft And first between branch pipe;It is disposed with limiting stand, the first articulated shaft and limit shaft from left to right on the second branch pipe;
The quantity of universal wheel is six, wherein four lower sections for being arranged on support base, remaining two are arranged on support carriers End;
One end of the arm of force and the steel axis that articulated shaft used in the top articulated connection of the upright bar is a diameter of 15mm Pin, the support carriers and the steel pivot pin that articulated shaft used in support base articulated connection is a diameter of 15mm;
The arm of force is the scalable arm of force;The arm of force includes matrix bar and telescopic rod, and telescopic rod is slideable to be plugged in matrix bar, It is articulated at the external part of telescopic rod;In the case where combining can the stretching of the arm of force, handcart circuit breaker in the switch gear room The maximum sling height of special lifting service kit reaches 235cm;
The application method of the special lifting service kit of handcart circuit breaker is as follows in the switch gear room:
When the special lifting service kit of handcart circuit breaker is idle in switch gear room, the telescopic rod of the arm of force bounces back to the matrix bar of the arm of force It is interior, while the extension bar of hydraulic pump is bounced back in the ontology of hydraulic pump;Support carriers are up rolled over by the effect of the first articulated shaft, Fall the limit dais in support base;Using manually hydraulic pump as power output, slinging work is carried out using lever principle, It is positively retained at the height of needs;Six universal wheels with brake function are employed in base bottom, it is universal for four after folding Wheel lands, and realizes firm support;The arm of force has 4 adjusting positions, according to the size of lifting weight of object, can flexibly be adjusted Section;Entirety employs pivot pin modular design:First articulated shaft and the second articulated shaft, detachably, flexibly and easily;Support base and Support carriers use foldable design, occupy little space, can flexibly be moved in small space;
When the special lifting service kit of handcart circuit breaker works in switch gear room, two universal wheels of support carriers bottom land, Realize more firm supporting role;The height that the hydraulic stem of hydraulic pump is as needed is stretched out, and arm of force length as needed is stretched Go out, you can complete work as the case may be;After the completion of work, and can be by the special lifting of handcart circuit breaker in switch gear room When service kit is folded into idle state.
CN201510660898.XA 2015-10-13 2015-10-13 The special lifting service kit of handcart circuit breaker in a kind of switch gear room CN105244788B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510660898.XA CN105244788B (en) 2015-10-13 2015-10-13 The special lifting service kit of handcart circuit breaker in a kind of switch gear room

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Application Number Priority Date Filing Date Title
CN201510660898.XA CN105244788B (en) 2015-10-13 2015-10-13 The special lifting service kit of handcart circuit breaker in a kind of switch gear room

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CN105244788B true CN105244788B (en) 2018-06-22

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Publication number Priority date Publication date Assignee Title
CN105870822B (en) * 2016-06-13 2017-06-30 国网山东省电力公司莱阳市供电公司 A kind of apparatus for examination and repair of central cabinet circuit breaker
CN106006438B (en) * 2016-07-28 2019-09-17 李文龙 A kind of multifunction hydraulic crane
CN106353661A (en) * 2016-09-28 2017-01-25 国网冀北电力有限公司物资分公司 Lifting device for checking and detecting inventory power equipment

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CN2291402Y (en) * 1997-04-11 1998-09-16 铜陵皖江机械总厂 Folding crane
CN201746253U (en) * 2010-07-02 2011-02-16 常熟通润汽车零部件股份有限公司 Folding engine crane
CN102674162A (en) * 2012-05-28 2012-09-19 山东电力集团公司潍坊供电公司 Special lifting device for pneumatic mechanism of circuit breaker
CN204474180U (en) * 2015-01-28 2015-07-15 广州市自来水公司 A kind of movable hydraulic lifting appliance
CN205016898U (en) * 2015-10-13 2016-02-03 国家电网公司 Maintenance instrument is lifted by crane in special use of handcart circuit breaker in switch gear room

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