CN104409998A - Tool for replacing tulip contact of breaker - Google Patents
Tool for replacing tulip contact of breaker Download PDFInfo
- Publication number
- CN104409998A CN104409998A CN201410716133.9A CN201410716133A CN104409998A CN 104409998 A CN104409998 A CN 104409998A CN 201410716133 A CN201410716133 A CN 201410716133A CN 104409998 A CN104409998 A CN 104409998A
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- CN
- China
- Prior art keywords
- slide block
- expansion part
- kinematic link
- holder
- instrument
- 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
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- 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
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Breakers (AREA)
Abstract
The invention provides a tool for changing a tulip contact of a breaker. The tool comprises a transmission connecting rod, a sliding block, an expanding piece and a supporting piece, wherein a transmission fit part is formed at one end of the transmission connecting rod, and a fixed base is formed in the middle of the transmission connecting rod; the sliding block is mounted on the transmission fit part and can move back and forth on the transmission fit part in the axial direction; the expanding piece is mounted on the sliding block and positioned between the sliding block and the fixed base, and can move back and forth on the sliding block in the radial direction; one end of the supporting piece is movably connected with the outer wall of the fixed base, and the other end of the supporting piece is articulated with the expanding piece and forms rotation fit with the central shaft of the transmission rod around the central shaft; when the sliding block moves in the direction towards or far from the fixed base, the supporting piece rotates around the central shaft of the transmission connecting rod in the direction far from or towards the sliding block, so that the expanding piece is expanded outward or contracted inward. By adopting the tool, one-man operation is only required, the structure is simple, the tool is convenient to operate, operating time and manpower are reduced, and the damage risk of the tulip contact of the breaker is reduced, so that the potential safety hazard of a 10kV switch cabinet of a transforming plant is reduced.
Description
Technical field
The present invention relates to overhaul of line breaker technical field, particularly relate to a kind of instrument changing circuit breaker Mume flower contact.
Background technology
Circuit breaker is widely used in electric power system, especially withdraw-type dolly circuit breaker, and this dolly circuit breaker is applied to transformer station 10kV switch cubicle, and it realizes the conducting of electric current by contact form plug-type between dynamic/static contact.Along with dolly circuit breaker runs the increase of the time limit and the constantly soaring of electrical network power load, in high load situations, fever phenomenon may be there is in the Mume flower contact of dolly circuit breaker because of loose contact, as processed not in time, then the Mume flower contact Spring pinch force causing dolly circuit breaker is continued to reduce, dynamic/static contact contact resistance on dolly circuit breaker is increased, thus causes the Mume flower contact heating scaling loss of dolly circuit breaker, cause even transformer station's 10kV switch cubicle to be blasted.
For avoiding the generation of above-mentioned dangerous situation, need to overhaul the Mume flower contact of dolly circuit breaker and change in time, in prior art, change the method for the Mume flower contact of dolly circuit breaker for using conventional service kit dismounting contact and the annex thereof such as screwdriver, glue pincers, its shortcoming is: (1) Mume flower contact due to dolly circuit breaker has four fastening springs, make one man operation's difficulty in disassembly process comparatively large, at least need two maintainers to match; (2) compactness owing to requiring between the Mume flower contact of dolly circuit breaker and fastening spring is higher, makes dismounting consuming time longer; (3) in the Mume flower contact Renewal process of dolly circuit breaker, fastening spring need be pried open, there is the phenomenons such as displacement, distortion or damage in the easy like this parts such as the Mume flower contact fastening spring of dolly circuit breaker, fingertip and conductive arm that cause, transformer station's 10kV switch cubicle is in operation and there is certain potential safety hazard.
Therefore, need a kind of new tool changing circuit breaker Mume flower contact of design badly, structure is simply easy to use, and simplifies replacing flow process, reaches time saving and energy saving and the object of minimizing potential safety hazard.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of instrument changing circuit breaker Mume flower contact is provided, only need one man operation, and its structure is simply easy to use, save operating time and manpower, reduce the damage risk of circuit breaker Mume flower contact, thus decrease the potential safety hazard that transformer station's 10kV switch cubicle is in operation.
In order to solve the problems of the technologies described above, embodiments provide a kind of instrument changing circuit breaker Mume flower contact, comprising kinematic link, slide block, expansion part and strutting piece; Wherein,
One end of described kinematic link is formed with the transmission auxiliary section of certain length, and middle part is formed with holder;
Described slide block is arranged on described transmission auxiliary section, and can be axially movable back and forth on described transmission auxiliary section along described kinematic link;
Described expansion part to be arranged on described slide block and between described slide block and described holder, and can be radial movable back and forth on described slide block along described kinematic link;
One end of described strutting piece is formed with described holder outer wall and is flexibly connected, and the other end and described expansion part are formed hinged towards the side, side of described holder, and can around described kinematic link central shaft rotatable engagement;
When described slide block is along when moving towards described holder direction, described strutting piece, along rotating around described kinematic link central shaft away from described slide block direction, makes described expansion part expand outwardly; When described slide block is along when moving away from described holder direction, described strutting piece, along rotating towards described slide block direction around described kinematic link central shaft, makes described expansion part inwardly shrink.
Wherein, described expansion part has multiple, and each expansion part is identical fan-shaped part, and each fan-shaped part is all fan-shaped distribution along described kinematic link outer surface perimeter edge, and be all slidably arranged in the draw-in groove of the correspondence of described slide block, and be connected with corresponding strutting piece.
Wherein, described slide block is formed with draw-in groove on the side of described holder, and what described expansion part slided is arranged in described draw-in groove.
Wherein, described expansion part is formed with away from the side, side of described holder the projection be installed in described draw-in groove, and wherein, described projection is greater than the radial diameter of described draw-in groove opening part towards the side end face radial diameter of described draw-in groove diapire.
Wherein, described slide block set is connected on the outer surface of described transmission auxiliary section, its inwall is formed with the internal thread matched with the external screw thread be coated on the outer surface of described transmission auxiliary section.
Wherein, when described kinematic link is rotated counterclockwise, described slide block is along moving towards described holder direction, and described strutting piece, along rotating around described kinematic link central shaft away from described slide block direction, makes described expansion part expand outwardly; When described kinematic link turns clockwise, described slide block is along moving away from described holder direction, and described strutting piece, along rotating towards described slide block direction around described kinematic link central shaft, makes described expansion part inwardly shrink; Or
When described kinematic link turns clockwise, described slide block is along moving towards described holder direction, and described strutting piece, along rotating around described kinematic link central shaft away from described slide block direction, makes described expansion part expand outwardly; When described kinematic link is rotated counterclockwise, described slide block is along moving away from described holder direction, and described strutting piece, along rotating towards described slide block direction around described kinematic link central shaft, makes described expansion part inwardly shrink.
Wherein, described expansion part and described strutting piece are formed hinged by bolt.
Wherein, described instrument also comprises the fixed clip for installing described expansion part, on the outer surface that described fixed clip is socketed on described kinematic link and between described slide block and described expansion part, and be provided with described draw-in groove on side, described expansion part side.
Wherein, described instrument also comprises handle, and described handle is arranged on the other end of described kinematic link.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, because the rotating band movable slider of instrument by kinematic link moves back and forth, realize expansion part and expand outwardly or inwardly shrink, its structure simple operations is convenient, and only needs one man operation, saves operating time and manpower;
2, in embodiments of the present invention; due to instrument holding by slide block and kinematic link; thus support the support force of expansion part; while perfect dismounting Mume flower contact; also the object that parts such as protection fingertip and spring etc. are injury-free is reached; reduce the damage risk of circuit breaker Mume flower contact, thus decrease the potential safety hazard that transformer station's 10kV switch cubicle is in operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, the accompanying drawing obtaining other according to these accompanying drawings still belongs to category of the present invention.
The top plan view structural representation of the instrument of the replacing circuit breaker Mume flower contact that Fig. 1 provides for the embodiment of the present invention;
The left view plane structural representation of the instrument of the replacing circuit breaker Mume flower contact that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is that in Fig. 1, expansion part is arranged on the partial structurtes enlarged drawing on fixed clip;
The instrument of the replacing circuit breaker Mume flower contact that Fig. 4 provides for the embodiment of the present invention and circuit breaker Mume flower contact are with the use of front structural representation;
The instrument of the replacing circuit breaker Mume flower contact that Fig. 5 provides for the embodiment of the present invention and circuit breaker Mume flower contact with the use of in structural representation;
Wherein, 1-kinematic link, 11-transmission auxiliary section, 12-holder, 2-slide block, 21-draw-in groove, 3-expansion part, 31-projection, 4-strutting piece, 5-fixed clip, 6-handle, 7-Mume flower contact, 8-conductive arm.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
The direction that the present invention mentions and position term, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " top ", " bottom ", " side " etc., be only the direction with reference to accompanying drawing or position.Therefore, the direction of use and position term are in order to illustrate and to understand the present invention, but not limiting the scope of the invention.
As shown in Figures 1 to 5, in the embodiment of the present invention, be a kind of instrument changing circuit breaker Mume flower contact, comprise kinematic link 1, slide block 2, expansion part 3 and strutting piece 4; Wherein,
One end of kinematic link 1 is formed with the transmission auxiliary section 11 of certain length, and middle part is formed with holder 12, and this kinematic link 1 adopts GB45 steel, and through zinc-plated process, guarantees its smoothness;
Slide block 2 is arranged on transmission auxiliary section 11, and can be axially movable back and forth on transmission auxiliary section 11 along kinematic link 1;
Expansion part 3 to be arranged on slide block 2 and between slide block 2 and holder 12, and can be movable back and forth on slide block 2 along kinematic link 1 radial direction;
One end of strutting piece 4 is formed with holder 12 outer wall and is flexibly connected, and the other end and expansion part 3 are formed hinged towards the side, side of holder 12, and can around kinematic link 1 central shaft rotatable engagement; Wherein, strutting piece 4 can be formed hinged with expansion part 3 by bolt;
When slide block 2 is along when moving towards holder 12 direction, strutting piece 4 rotates along away from slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is expanded outwardly; When slide block 2 is along when moving away from holder 12 direction, strutting piece 4 rotates along towards slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is inwardly shunk.
It should be noted that outwards and inwardly with kinematic link 1 for object of reference, outwards refer to the direction away from kinematic link 1, inwardly refer to towards the direction of kinematic link 1.When slide block 2 is axially movable back and forth on transmission auxiliary section 11 along kinematic link 1, makes expansion part 3 expand outwardly or inwardly shrink, by one man operation, save manpower and time.When expansion part 3 expands outwardly, as long as continue by keeping force the support force supporting expansion part 3, make while perfect dismounting Mume flower contact 7, also the object that parts such as protection fingertip and spring etc. are injury-free is reached, slide block 2 is movable on transmission auxiliary section 11 simultaneously exists the first extreme position, expansion part 3 is expanded outwardly there is the limit, thus guarantee the safety of expansion part 3 and strutting piece 4; Equally, when expansion part 3 inwardly shrinks, slide block 2 is movable on transmission auxiliary section 11 exists the second extreme position, expansion part 3 is inwardly shunk and has the limit, thus guarantee the safety of expansion part 3 and strutting piece 4.Certainly, also can guarantee slide block 2 when expansion part 3 inwardly shrinks, expansion part 3 being when being connected always with strutting piece 4 three and not damaging, limit second extreme position of slide block 2 on transmission auxiliary section 11 by expansion part 3 and strutting piece 4.
As an example, exerting a force at the other end of kinematic link 1, by withstanding slide block 2, slip 2 no longer being moved, the support force after supporting expansion part 3 to expand outwardly, or by cancelling the top power of slide block 2, then expansion part 3 inwardly shrinks automatically.The best is that when reaching a certain position, slide block 2 holds mutually with kinematic link 1 by slide block 2 towards in the motion process of holder 12 direction, thus realizes the support force after supporting expansion part 3 to expand outwardly; Or by slide block 2 away from the motion process of holder 12 direction, when reaching another location, slide block 2 holds mutually with kinematic link 1, guarantees that slide block 2, expansion part 3 are connected with strutting piece 4 three and do not damage always.
In order to better in dismounting Mume flower contact 7 process; improve the expansionary force of expansion part 3; guarantee to reach injury-free object such as parts such as protection fingertip and spring etc.; therefore expansion part 3 has multiple; each expansion part 3 is identical fan-shaped part; and each fan-shaped part is all fan-shaped distribution along kinematic link 1 outer surface perimeter edge, and be all slidably arranged in the draw-in groove 21 of the correspondence of slide block 2, and be connected with corresponding strutting piece 4.
Expansion part 3 realizes moving back and forth on slide block 3 along kinematic link 1 radial direction by the mode of sliding, and therefore slide block 2 is formed with draw-in groove 21 on the side of holder 12, and what expansion part 3 slided is arranged in draw-in groove 21; In order to avoid expansion part 3 further in motion process, due to by under the tensile force effect of strutting piece 2, the phenomenon that expansion part 3 may be made to depart from the draw-in groove 21 of slide block 2 occurs, therefore expansion part 3 is away from the side, side of holder 12 being formed with the projection 31 be installed in draw-in groove 21, wherein, projection 31 is greater than the radial diameter of draw-in groove 21 opening part towards the side end face radial diameter of draw-in groove 21 diapire, projection 31 can be held in draw-in groove 21 in sliding process always, and can not depart from from draw-in groove 21 opening part.
In order to reach labour-saving object; and can adjust at any time according to the size of circuit breaker Mume flower contact and keep the outward expansion force of expansion part 3; therefore slide block 2 is socketed on the outer surface of transmission auxiliary section 11; its inwall is formed with the internal thread matched with the external screw thread be coated on the outer surface of transmission auxiliary section 11; make slide block 2 can adjust extreme position according to the externally threaded length in transmission auxiliary section 11, further the safety of protection slide block 2, expansion part 3 and strutting piece 4.
Adopt above-mentioned slide block 2 internal thread to move with transmission auxiliary section 11 external screw thread to coordinate, because the direction of rotation of screw thread arranges difference, therefore realize expansion part 3 expand outwardly or inwardly shrink have two kinds of patterns:
One, when kinematic link 1 is rotated counterclockwise, slide block 2 moves along towards holder 12 direction, and strutting piece 4 rotates along away from slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is expanded outwardly; When kinematic link 1 turns clockwise, slide block 2 moves along away from holder 12 direction, and strutting piece 4 rotates along towards slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is inwardly shunk;
Two, when kinematic link 1 turns clockwise, slide block 2 moves along towards holder 12 direction, and strutting piece 4 rotates along away from slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is expanded outwardly; When kinematic link 1 is rotated counterclockwise, slide block 2 moves along away from holder 12 direction, and strutting piece 4 rotates along towards slide block 2 direction around kinematic link 1 central shaft, and expansion part 3 is inwardly shunk.
In order to further protect expansion part 3; special fixture can be adopted to install expansion part 3; therefore the instrument of replacing circuit breaker Mume flower contact also comprises the fixed clip 5 for installing expansion part 3; on the outer surface that fixed clip 5 is socketed on kinematic link 1 and between slide block 2 and expansion part 3, and the draw-in groove 21 being provided with expansion part 3 sliding on side, expansion part 3 side.
For the ease of operation, the instrument therefore changing circuit breaker Mume flower contact also comprises handle 6, and this handle 6 is arranged on the other end of kinematic link 1, and the motion that can be conducive to being realized between slide block 2 with kinematic link 1 by this handle 6 is coordinated.
As shown in Figure 4 and Figure 5, the operation principle of the instrument of the replacing circuit breaker Mume flower contact in the embodiment of the present invention is: before replacing circuit breaker Mume flower contact 7, instrument is stretched in the cavity at circuit breaker Mume flower contact 7 place, handle 6 counterclockwise on (or clockwise) turning tool, kinematic link 1 drives transmission auxiliary section 11 (or clockwise) rotation counterclockwise, make slide block 2 against living fixed clip 5 and driving fixed clip 5 to move towards holder 12 direction of kinematic link 1, expansion part 3 is expanded outwardly along the draw-in groove 21 on fixed clip 5 under the support of strutting piece 4, namely move away from kinematic link 1 direction in expansion part 3 edge in kinematic link 1 radial direction,
After dismounting circuit breaker Mume flower contact 7 completes, handle 6 clockwise on (or counterclockwise) turning tool, kinematic link 1 drives transmission auxiliary section 11 (or counterclockwise) rotation clockwise, and move along holder 12 direction away from kinematic link 1 with movable slider 2, expansion part 3 is inwardly shunk, namely move towards kinematic link 1 direction in expansion part 3 edge in kinematic link 1 radial direction, under the support of strutting piece 4, now make fixed clip 5 move along towards slip 2 direction, can fetch in the cavity of circuit breaker Mume flower contact 7 by implementation tool.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, because the rotating band movable slider of instrument by kinematic link moves back and forth, realize expansion part and expand outwardly or inwardly shrink, its structure simple operations is convenient, and only needs one man operation, saves operating time and manpower;
2, in embodiments of the present invention; due to instrument holding by slide block and kinematic link; thus support the support force of expansion part; while perfect dismounting Mume flower contact; also the object that parts such as protection fingertip and spring etc. are injury-free is reached; reduce the damage risk of circuit breaker Mume flower contact, thus decrease the potential safety hazard that transformer station's 10kV switch cubicle is in operation.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (9)
1. change an instrument for circuit breaker Mume flower contact, it is characterized in that, comprise kinematic link (1), slide block (2), expansion part (3) and strutting piece (4); Wherein,
One end of described kinematic link (1) is formed with the transmission auxiliary section (11) of certain length, and middle part is formed with holder (12);
Described slide block (2) is arranged on described transmission auxiliary section (11), and can be axially movable back and forth on described transmission auxiliary section (11) along described kinematic link (1);
Described expansion part (3) is arranged on described slide block (2) and goes up and be positioned between described slide block (2) and described holder (12), and can be radial movable back and forth on described slide block (2) along described kinematic link (1);
One end of described strutting piece (4) is formed with described holder (12) outer wall and is flexibly connected, and the other end and described expansion part (3) are formed hinged towards the side, side of described holder (12), and can around described kinematic link (1) central shaft rotatable engagement;
When described slide block (2) is along when moving towards described holder (12) direction, described strutting piece (4) rotates along away from described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is expanded outwardly; When described slide block (2) is along when moving away from described holder (12) direction, described strutting piece (4) rotates along towards described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is inwardly shunk.
2. instrument as claimed in claim 1, it is characterized in that, described expansion part (3) has multiple, each expansion part (3) is identical fan-shaped part, and each fan-shaped part is all fan-shaped distribution along described kinematic link (1) outer surface perimeter edge, and be all slidably arranged in the draw-in groove (21) of the correspondence of described slide block (2), and be connected with corresponding strutting piece (4).
3. instrument as claimed in claim 2, it is characterized in that, described slide block (2) is formed with draw-in groove (21) on the side of described holder (12), and what described expansion part (3) slided is arranged in described draw-in groove (21).
4. instrument as claimed in claim 3, it is characterized in that, the side side of described expansion part (3) away from described holder (12) is formed with the projection (31) be installed in described draw-in groove (21), wherein, described projection (31) is greater than the radial diameter of described draw-in groove (21) opening part towards the side end face radial diameter of described draw-in groove (21) diapire.
5. instrument as claimed in claim 4, it is characterized in that, described slide block (2) is socketed on the outer surface of described transmission auxiliary section (11), its inwall is formed with the internal thread matched with the external screw thread be coated on described transmission auxiliary section (11) outer surface.
6. instrument as claimed in claim 5, it is characterized in that, when described kinematic link (1) is rotated counterclockwise, described slide block (2) is along moving towards described holder (12) direction, described strutting piece (4) rotates along away from described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is expanded outwardly; When described kinematic link (1) turns clockwise, described slide block (2) is along moving away from described holder (12) direction, described strutting piece (4) rotates along towards described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is inwardly shunk; Or
When described kinematic link (1) turns clockwise, described slide block (2) is along moving towards described holder (12) direction, described strutting piece (4) rotates along away from described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is expanded outwardly; When described kinematic link (1) is rotated counterclockwise, described slide block (2) is along moving away from described holder (12) direction, described strutting piece (4) rotates along towards described slide block (2) direction around described kinematic link (1) central shaft, and described expansion part (3) is inwardly shunk.
7. instrument as claimed in claim 6, is characterized in that, described expansion part (3) and described strutting piece (4) are formed hinged by bolt.
8. instrument as claimed in claim 7, it is characterized in that, described instrument also comprises the fixed clip (5) for installing described expansion part (3), the outer surface that described fixed clip (5) is socketed on described kinematic link (1) is positioned between described slide block (2) and described expansion part (3), and is being provided with described draw-in groove (21) on described expansion part (3) side, side.
9. instrument as claimed in claim 8, it is characterized in that, described instrument also comprises handle (6), and described handle (6) is arranged on the other end of described kinematic link (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716133.9A CN104409998B (en) | 2014-12-02 | 2014-12-02 | A kind of instrument for changing breaker Mume flower contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410716133.9A CN104409998B (en) | 2014-12-02 | 2014-12-02 | A kind of instrument for changing breaker Mume flower contact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104409998A true CN104409998A (en) | 2015-03-11 |
| CN104409998B CN104409998B (en) | 2017-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410716133.9A Active CN104409998B (en) | 2014-12-02 | 2014-12-02 | A kind of instrument for changing breaker Mume flower contact |
Country Status (1)
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| CN (1) | CN104409998B (en) |
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| CN105355486A (en) * | 2015-12-07 | 2016-02-24 | 广东电网有限责任公司中山供电局 | Plum blossom contact spring installation apparatus |
| CN109494101A (en) * | 2018-12-28 | 2019-03-19 | 台州通源电器股份有限公司 | A kind of processing unit (plant) of easy-to-mount Mume flower contact |
| CN113777363A (en) * | 2021-08-24 | 2021-12-10 | 国网福建省电力有限公司南安市供电公司 | Variable-diameter pre-compression special joint for loop resistance test and working method thereof |
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| CN204243572U (en) * | 2014-12-02 | 2015-04-01 | 深圳供电局有限公司 | A kind of instrument changing circuit breaker Mume flower contact |
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| US5321875A (en) * | 1993-06-22 | 1994-06-21 | Bethlehem Steel Corporation | Well block centering tool |
| CN101862842A (en) * | 2009-04-14 | 2010-10-20 | 王明昆 | Novel universal annular work piece positioning and clamping tool |
| CN101728098A (en) * | 2009-11-27 | 2010-06-09 | 江苏华冠电器集团有限公司 | Tool for dismounting plum blossom contact for switching |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105355486A (en) * | 2015-12-07 | 2016-02-24 | 广东电网有限责任公司中山供电局 | Plum blossom contact spring installation apparatus |
| CN105355486B (en) * | 2015-12-07 | 2017-07-11 | 广东电网有限责任公司中山供电局 | Mume flower contact spring fitting device |
| CN109494101A (en) * | 2018-12-28 | 2019-03-19 | 台州通源电器股份有限公司 | A kind of processing unit (plant) of easy-to-mount Mume flower contact |
| CN113777363A (en) * | 2021-08-24 | 2021-12-10 | 国网福建省电力有限公司南安市供电公司 | Variable-diameter pre-compression special joint for loop resistance test and working method thereof |
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| Publication number | Publication date |
|---|---|
| CN104409998B (en) | 2017-06-16 |
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