CN103325588A - Three-station insulation earthing switch - Google Patents
Three-station insulation earthing switch Download PDFInfo
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- CN103325588A CN103325588A CN2013102709588A CN201310270958A CN103325588A CN 103325588 A CN103325588 A CN 103325588A CN 2013102709588 A CN2013102709588 A CN 2013102709588A CN 201310270958 A CN201310270958 A CN 201310270958A CN 103325588 A CN103325588 A CN 103325588A
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Abstract
The invention discloses a three-station insulation earthing switch. The three-station insulation earthing switch comprises a main shaft, an earthing shaft and an insulation shaft, wherein a main shaft limiting crank arm and a driven wheel are connected to the main shaft, the main shaft limiting crank arm is located above the driven wheel, a driving wheel and a sector earthing shaft plate are connected to the earthing shaft, the driving wheel is located above the sector earthing shaft plate, the driving wheel is meshed with the driven shaft, an insulation shaft crank arm and a sector insulation shaft plate are connected to the insulation shaft, the insulation shaft crank arm is located above the sector insulation shaft plate, a connecting rod is connected between the insulation shaft crank arm and the main shaft liming crank arm, one end of the connecting rod is movably connected with the main shaft limiting crank arm, and the other end of the connecting rod is connected with the insulation shaft crank arm in a sliding mode. According to the three-station insulation earthing switch, ground connection of the three-station insulation earthing switch is achieved through gear transmission, switching-on and insulation of the three-station insulation earthing switch are achieved by means of transmission of the connecting rod, therefore, the transmission is accurate, the reliability of ground connection is effectively improved, and the three-station insulation earthing switch is simple in structure and convenient to operate.
Description
Technical field
The present invention is relevant for a kind of electric switch equipment, especially relevant for a kind of three station isolation grounding switchs that are applied in the switch cubicle.
Background technology
Electric switch is widely used in generating, transmission of electricity, reaches distribution system as the visual plant of electric power system, in industry and automatic field a large amount of application is arranged also.Reliability and power supply quality in order to improve customer power supply save floor occupying area, and present switchgear is to developing without oiling, high security, high reliability, miniaturization, integrated direction.
High-voltage alternating current isolating switch (hereinafter to be referred as isolating switch) is a kind of when open position, the insulation distance of requirement up to specification is arranged between contact and significantly disconnect sign; When closing position, can carry electric current and the switchgear of the electric current under the exceptional condition (for example short circuit) at the appointed time under the normal loop condition.Generally, isolating switch does not have the ability that Guan Hehe cut-offs its rated operational current that carries and short-circuit current; But when loop current " very little ", perhaps when the voltage between two terminals of the every utmost point of isolating switch before and after Guan Hehe cut-offs during without marked change, isolating switch has the ability that Guan Hehe cut-offs the loop.
High voltage AC earthing switch (hereinafter to be referred as earthed switch) is a kind of for the mechanical switch device with loop ground connection.Under exceptional condition (such as short circuit), can carry at the appointed time the abnormal current of regulation; But under normal loop condition, do not require loaded current.Earthed switch is mainly used to provide reliable ground for maintenance safety in the line.
In switch cubicle, usually isolating switch and earthed switch are combined into the isolation-earthed switch of three stations.Three station isolation-earthed switches have been integrated the function of isolating switch and earthed switch, and are finished by a cutter, so just can realize mechanical latching, prevent the charged ground cutter that closes of major loop.
Three station isolation-earthed switches of the prior art mostly adopt link transmission between its operating axis and the main shaft, transmission efficiency is lower, and the chute of jointed gear unit has error accumulation at transmission process, cause transmission accuracy lower.In addition, existing three station isolation-earthed switches, main by offering the interlocking that axis hole is realized mechanism at operating axis and main shaft, for guaranteeing the intensity of operating axis and main shaft, that usually the diameter of axle is made is larger, can cause like this mechanism whole heavy, and the waste material.
Therefore, be necessary to provide a kind of three new station isolation grounding switchs, overcome defects.
Summary of the invention
The purpose of this invention is to provide a kind of three station isolation grounding switchs, adopt gear drive to realize the ground connection operation of three station isolation grounding switchs, and adopt link transmission to realize combined floodgate and the isolated operation of three station isolation grounding switchs, it is transmission precision not only, Effective Raise Earthing Reliability, and structure forms simple, and is easy to operate.
Above-mentioned purpose of the present invention can adopt following technical proposal to realize:
The invention provides a kind of three station isolation grounding switchs, described three station isolation grounding switchs comprise:
Main shaft is connected with the spacing connecting lever of main shaft and driven pulley on it, the spacing connecting lever of described main shaft is positioned at the top of described driven pulley;
Grounding shaft is connected with driving wheel and grounding shaft fanning strip on it, described driving wheel is positioned at the top of described grounding shaft fanning strip, and described driving wheel is meshed with described driven pulley;
The isolation axle, be connected with isolation axle connecting lever and isolation axle fanning strip on it, described isolation axle connecting lever is positioned at the top of described isolation axle fanning strip, be connected with connecting rod between described isolation axle connecting lever and the spacing connecting lever of described main shaft, one end of described connecting rod links to each other with the spacing connecting lever of described main shaft rotationally, and the other end of described connecting rod links to each other with described isolation axle connecting lever slidably.
In preferred embodiment, between described grounding shaft and described isolation axle, be connected with spring.
In preferred embodiment, be connected with grounding shaft spring location connecting lever on the described grounding shaft, described grounding shaft spring location connecting lever is between described driving wheel and described grounding shaft fanning strip, one end of described spring is equipped with the spring locating shaft, and described spring locating shaft is rotatably connected between described grounding shaft spring location connecting lever and the described grounding shaft fanning strip by bearing pin.
In preferred embodiment, be connected with isolation axle spring location connecting lever on the described isolation axle, described isolation axle spring location connecting lever is between described isolation axle connecting lever and described isolation axle fanning strip, the other end of described spring is equipped with spring press-cover, and described spring press-cover is rotatably connected between described isolation axle spring location connecting lever and the described isolation axle fanning strip by bearing pin.
In preferred embodiment, the lower end of described grounding shaft is equipped with connecting plate, the other end of described connecting plate is set on the described isolation axle, the middle part of described connecting plate is connected with the interlocking wheel movably, and described interlocking wheel contacts movably with described grounding shaft fanning strip, described isolation axle fanning strip respectively.
In preferred embodiment, described three station isolation grounding switchs also comprise support plate, described support plate has front supporting plate and rear carrier plate, described front supporting plate parallels with described rear carrier plate, and the two ends of described main shaft, described grounding shaft and described isolation axle are rotatably connected to respectively on described front supporting plate and the described rear carrier plate.
In preferred embodiment, described front supporting plate is provided with close a floodgate spacing backing pin and the spacing backing pin of ground connection, and according to the gyration of described main shaft, the spacing connecting lever of described main shaft contacts with the spacing backing pin of described ground connection with the spacing backing pin of described combined floodgate respectively or separates.
In preferred embodiment, described isolation axle connecting lever comprises two fanning strips that be arranged in parallel, offers arc chute on the described fanning strip, and the other end of described connecting rod is connected in the arc chute of described two fanning strips slidably by bearing pin.
In preferred embodiment, whole outer peripheral edges of described driven pulley are provided with a plurality of engaging tooths, and the part outer peripheral edges of described driving wheel are provided with a plurality of engaging tooths, and a plurality of engaging tooths of described driving wheel are meshed with a plurality of engaging tooths of described driven pulley.
In preferred embodiment, described driving wheel is provided with three engaging tooths.
Characteristics and the advantage of three station isolation grounding switchs of the present invention are: adopt gear drive to realize the ground connection operation of three station isolation grounding switchs, and adopt link transmission to realize combined floodgate and the isolated operation of three station isolation grounding switchs, it is transmission precision not only, reduced error, Effective Raise Earthing Reliability, and structure forms simple, and is easy to operate.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the stereogram of three station isolation grounding switchs of the present invention.
Fig. 2 is the front view of three station isolation grounding switchs of the present invention.
Fig. 3 is the vertical view that three station isolation grounding switchs of the present invention are in ground state.
Fig. 4 is the vertical view that three station isolation grounding switchs of the present invention are in isolation.
Fig. 5 is the vertical view that three station isolation grounding switchs of the present invention are in "on" position.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Up and down position relationship as herein described is for shown in Figure 2.
As shown in Figure 1, the invention provides a kind of three station isolation grounding switchs, it comprises main shaft 1, grounding shaft 2 and isolation axle 3.Wherein: be connected with the spacing connecting lever 11 of main shaft and driven pulley 12 on the main shaft 1, the spacing connecting lever 11 of described main shaft is positioned at the top of described driven pulley 12; Be connected with driving wheel 21 and grounding shaft fanning strip 22 on the grounding shaft 2, described driving wheel 21 is positioned at the top of described grounding shaft fanning strip 22, and described driving wheel 21 is meshed with described driven pulley 12; Be connected with isolation axle connecting lever 31 and isolation axle fanning strip 32 on the isolation axle 3, described isolation axle connecting lever 31 is positioned at the top of described isolation axle fanning strip 32, be connected with connecting rod 33 between the spacing connecting lever 11 of described isolation axle connecting lever 31 and described main shaft, one end of described connecting rod 33 links to each other with the spacing connecting lever 11 of described main shaft rotationally, and the other end of described connecting rod 33 links to each other with described isolation axle connecting lever 31 slidably.
Specifically, please cooperate and consult shown in Figure 2ly, be fixedly connected with the spacing connecting lever 11 of main shaft and driven pulley 12 on the main shaft 1, also, the spacing connecting lever 11 of main shaft and driven pulley 12 rotate along with the rotation of main shaft 1.In the present embodiment, be equipped with engaging tooth 121 on whole outer peripheral edges of driven pulley 12, also, this driven pulley 12 is a full-depth tooth gear; The spacing connecting lever 11 of main shaft is positioned at the top of driven pulley 12, protrudes out limited location protuberance 111 on its outer rim.
The operating process that this three station isolation grounding switch carries out ground connection-isolation-combined floodgate is as follows: at first, please cooperate consult shown in Figure 3, when this three station isolation grounding switch is in earthing position shown in Figure 3, this state main shaft 1 of giving a definition is positioned at earthing position, by operational grounding axle 2, grounding shaft 2 is turned clockwise, in the present invention, after grounding shaft 2 turns clockwise 30 degree, the engaging tooth 212 that is connected to the driving wheel 21 on the grounding shaft 2 is meshed with the engaging tooth 121 of the driven pulley 12 of main shaft 1 just, at this moment, be rotated further grounding shaft 2, because the meshing relation of driving wheel 21 and driven pulley 12, main shaft 1 will turn to an isolated location under the drive of grounding shaft 2, also be position shown in Figure 4.
When this three station isolation grounding switch is in place, isolated location shown in Figure 4, by operational grounding axle 2, grounding shaft 2 is rotated counterclockwise, in the present invention, after grounding shaft 2 was rotated counterclockwise 30 degree, the engaging tooth 212 that is connected to the driving wheel 21 on the grounding shaft 2 was meshed with the engaging tooth 121 of the driven pulley 12 of main shaft 1 just, at this moment, be rotated further grounding shaft 2, main shaft 1 will turn to aforementioned earthing position shown in Figure 3 under the drive of grounding shaft 2; When this three station isolation grounding switch is in place, isolated location shown in Figure 4, by operation isolation axle 3, isolation axle 3 is turned clockwise, main shaft 1 will the isolation axle connecting lever 31 of isolation axle 3, with the drive of the spacing connecting lever 11 of main shaft of isolating connecting rod 33 that axle connecting lever 31 is slidingly connected mutually and being rotationally connected with connecting rod 33 under turn to a closing position, also be position shown in Figure 5.
When this three station isolation grounding switch is in closing position place shown in Figure 5, by operation isolation axle 3, isolation axle 3 is rotated counterclockwise, main shaft 1 will the isolation axle connecting lever 31 of isolation axle 3, with isolate connecting rod 33 that axle connecting lever 31 is slidingly connected mutually and with the drive that is connected the spacing connecting lever 11 of 33 main shafts that are rotationally connected under turn to aforementioned isolated location shown in Figure 4.
Three station isolation grounding switchs of the present invention, adopt gear drive to realize the ground connection operation of three station isolation grounding switchs, and adopt link transmission to realize combined floodgate and the isolated operation of three station isolation grounding switchs, it is transmission precision not only, reduced error, Effective Raise Earthing Reliability, and structure forms simple, easy to operate.
According to an embodiment of the invention, between described grounding shaft 2 and described isolation axle 3, be connected with spring 4.Specifically, be fixedly connected with grounding shaft spring location connecting lever 23 on the described grounding shaft 2, also be, grounding shaft spring location connecting lever 23 rotates along with the rotation of grounding shaft 2, described grounding shaft spring location connecting lever 23 is between described driving wheel 21 and described grounding shaft fanning strip 22, one end of described spring 4 is equipped with spring locating shaft 41, described spring locating shaft 41 is rotatably connected between described grounding shaft spring location connecting lever 23 and the described grounding shaft fanning strip 22 by the bearing pin (not shown), and this spring locating shaft 41 can bearing pin be that axle is in grounding shaft spring location connecting lever 23 and 22 rotations of grounding shaft fanning strip.
Further, be fixedly connected with isolation axle spring location connecting lever 34 on the described isolation axle 3, also be, isolation axle spring location connecting lever 34 rotates along with the rotation of isolation axle 3, described isolation axle spring location connecting lever 34 is between described isolation axle connecting lever 31 and described isolation axle fanning strip 32, the other end of described spring 4 is equipped with spring press-cover 42, described spring press-cover 42 is rotatably connected between described isolation axle spring location connecting lever 34 and the described isolation axle fanning strip 32 by bearing pin 43, and this spring press-cover 42 can bearing pin 43 be that axle is in isolation axle spring location connecting lever 34 and 32 rotations of isolation axle fanning strip.
When this three station isolation grounding switch switches to closing position from the isolated location, clockwise rotate in the process of 30 degree at isolation axle 3, spring 4 is in the stage of compressed energy-storage, after spring 4 strides across its compression critical point, to drive main shaft 1 and turn clockwise by discharging elastic potential energy, so that main shaft 1 switches to closing position from the isolated location; Otherwise, when this three station isolation grounding switch is transformed into the isolated location from closing position, rotate counterclockwise in the process of 30 degree at isolation axle 3, spring 4 is in the stage of compressed energy-storage, after spring 4 strides across its compression critical point, to drive main shaft 1 and be rotated counterclockwise by discharging elastic potential energy, so that main shaft 1 switches to the isolated location from closing position.
According to an embodiment of the invention, the lower end of described grounding shaft 2 is equipped with connecting plate 5, the other end of described connecting plate 5 is set on the described isolation axle 3, the middle part of described connecting plate 5 is connected with interlocking wheel 51 movably, and described interlocking wheel 51 contacts movably with described grounding shaft fanning strip 22, described isolation axle fanning strip 32 respectively.
Specifically, the two ends of connecting plate 5 offer respectively the perforation (not shown), and the lower end of isolation axle 3 and the lower end of grounding shaft 2 are located in respectively in two perforation of connecting plate 5, and the middle part of connecting plate 5 offers groove 52; Interlocking wheel 51 is flat cylindrical substantially, and its lower surface is located in the groove 52 by bearing pin 53 and is connected to slidably on the connecting plate 5.Interlocking wheel 51 is positioned on the same level with the grounding shaft fanning strip 22 of grounding shaft 2, the isolation axle fanning strip 32 of isolation axle 3.
Interlocking of the present invention wheel 51 can be realized under ground state, the purpose of safety locking three station isolation grounding switchs under the "on" position.When three station isolation grounding switchs during at earthing position, grounding shaft 2 is when turning clockwise, grounding shaft fanning strip 22 on it and interlocking wheel 51 close contacts, interlocking wheel 51 is pushed isolate to isolation axle fanning strip 32 1 sides of axle 3, stop isolation axle 3 to turn clockwise and drive main shaft 1 and go to closing position, thereby realize the safety locking under ground state; When three station isolation grounding switchs during at closing position, isolation axle 3 is when turning clockwise, isolation axle fanning strip 32 on it and interlocking wheel 51 close contacts, interlocking wheel 51 is pushed to grounding shaft fanning strip 22 1 sides of grounding shaft 2, stop grounding shaft 2 to be rotated counterclockwise and to drive main shaft 1 and go to earthing position, thereby realize the safety locking under "on" position.
According to an embodiment of the invention, described three station isolation grounding switchs also comprise support plate 6, described support plate 6 has front supporting plate 61 and rear carrier plate 62, described front supporting plate 61 parallels with described rear carrier plate 62, and the two ends of described main shaft 1, described grounding shaft 2 and described isolation axle 3 are rotatably connected to respectively on described front supporting plate 61 and the described rear carrier plate 62.
Specifically, be connected with a plurality of fixed levers 63 between front supporting plate 61 and the rear carrier plate 62, the two ends of main shaft 1, grounding shaft 2 and isolation axle 3 are rotatably connected on front supporting plate 61 and the rear carrier plate 62 by bearing respectively, and this front supporting plate 61 and rear carrier plate 62 are used for fixed main shaft 1, grounding shaft 2 and isolate the relative position of 3 on axle.
Further, described front supporting plate 61 is provided with close a floodgate spacing backing pin 611 and the spacing backing pin 612 of ground connection, according to the gyration of described main shaft 1, the spacing connecting lever 11 of described main shaft contacts with the spacing backing pin 612 of described ground connection with the spacing backing pin 611 of described combined floodgate respectively or separates.The spacing backing pin 612 of this close a floodgate spacing backing pin 611 and ground connection is used for the angle of restriction main shaft 1 rotation, so that main shaft 1 stops main shaft 1 to continue rotation when turning to required closing position, earthing position place.
When main shaft 1 turns to closing position from the isolated location, the spacing connecting lever 11 of main shaft that is connected on the main shaft 1 will fasten at spacing backing pin 611 places of closing a floodgate by its stopper protrusion 111, and main shaft 1 is fixed on closing position shown in Figure 5, this spacing backing pin 611 that closes a floodgate is used for stoping main shaft 1 to be rotated further under the drive of isolation axle 3.When main shaft 1 turns to earthing position from the isolated location, the spacing connecting lever 11 of main shaft that is connected on the main shaft 1 will fasten at the spacing backing pin of ground connection 612 places by its stopper protrusion 111, and main shaft 1 is fixed on earthing position shown in Figure 3, the spacing backing pin 612 of this ground connection is used for stoping main shaft 1 to be rotated further under the drive of grounding shaft 2.
According to an embodiment of the invention, position near grounding shaft 2 on rear carrier plate 62 convexes with spacing backing pin 621, on grounding shaft 2, be fixedly connected with the spacing connecting lever 24 of grounding shaft, when grounding shaft 2 switches to earthing position place shown in Figure 3 from isolated location shown in Figure 4, the spacing connecting lever 24 of grounding shaft will fasten at spacing backing pin 621 places, prevent that grounding shaft 2 from continuing rotation, the spacing operation of the earth's axis that achieves a butt joint 2.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the embodiment of the invention according to the disclosed content of application documents and not break away from the spirit and scope of the present invention.
Claims (10)
1. a station isolation grounding switch is characterized in that, described three station isolation grounding switchs comprise:
Main shaft is connected with the spacing connecting lever of main shaft and driven pulley on it, the spacing connecting lever of described main shaft is positioned at the top of described driven pulley;
Grounding shaft is connected with driving wheel and grounding shaft fanning strip on it, described driving wheel is positioned at the top of described grounding shaft fanning strip, and described driving wheel is meshed with described driven pulley;
The isolation axle, be connected with isolation axle connecting lever and isolation axle fanning strip on it, described isolation axle connecting lever is positioned at the top of described isolation axle fanning strip, be connected with connecting rod between described isolation axle connecting lever and the spacing connecting lever of described main shaft, one end of described connecting rod links to each other with the spacing connecting lever of described main shaft rotationally, and the other end of described connecting rod links to each other with described isolation axle connecting lever slidably.
2. three station isolation grounding switchs as claimed in claim 1 is characterized in that, are connected with spring between described grounding shaft and described isolation axle.
3. three station isolation grounding switchs as claimed in claim 2, it is characterized in that, be connected with grounding shaft spring location connecting lever on the described grounding shaft, described grounding shaft spring location connecting lever is between described driving wheel and described grounding shaft fanning strip, one end of described spring is equipped with the spring locating shaft, and described spring locating shaft is rotatably connected between described grounding shaft spring location connecting lever and the described grounding shaft fanning strip by bearing pin.
4. three station isolation grounding switchs as claimed in claim 2, it is characterized in that, be connected with isolation axle spring location connecting lever on the described isolation axle, described isolation axle spring location connecting lever is between described isolation axle connecting lever and described isolation axle fanning strip, the other end of described spring is equipped with spring press-cover, and described spring press-cover is rotatably connected between described isolation axle spring location connecting lever and the described isolation axle fanning strip by bearing pin.
5. three station isolation grounding switchs as claimed in claim 1, it is characterized in that, the lower end of described grounding shaft is equipped with connecting plate, the other end of described connecting plate is set on the described isolation axle, the middle part of described connecting plate is connected with the interlocking wheel movably, and described interlocking wheel contacts movably with described grounding shaft fanning strip, described isolation axle fanning strip respectively.
6. three station isolation grounding switchs as claimed in claim 1, it is characterized in that, described three station isolation grounding switchs also comprise support plate, described support plate has front supporting plate and rear carrier plate, described front supporting plate parallels with described rear carrier plate, and the two ends of described main shaft, described grounding shaft and described isolation axle are rotatably connected to respectively on described front supporting plate and the described rear carrier plate.
7. three station isolation grounding switchs as claimed in claim 6, it is characterized in that, described front supporting plate is provided with close a floodgate spacing backing pin and the spacing backing pin of ground connection, according to the gyration of described main shaft, the spacing connecting lever of described main shaft contacts with the spacing backing pin of described ground connection with the spacing backing pin of described combined floodgate respectively or separates.
8. three station isolation grounding switchs as claimed in claim 1, it is characterized in that, described isolation axle connecting lever comprises two fanning strips that be arranged in parallel, offer arc chute on the described fanning strip, the other end of described connecting rod is connected in the arc chute of described two fanning strips slidably by bearing pin.
9. three station isolation grounding switchs as claimed in claim 1, it is characterized in that, whole outer peripheral edges of described driven pulley are provided with a plurality of engaging tooths, the part outer peripheral edges of described driving wheel are provided with a plurality of engaging tooths, and a plurality of engaging tooths of described driving wheel are meshed with a plurality of engaging tooths of described driven pulley.
10. three station isolation grounding switchs as claimed in claim 9 is characterized in that, described driving wheel is provided with three engaging tooths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102709588A CN103325588A (en) | 2013-07-01 | 2013-07-01 | Three-station insulation earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102709588A CN103325588A (en) | 2013-07-01 | 2013-07-01 | Three-station insulation earthing switch |
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| CN103325588A true CN103325588A (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102709588A Pending CN103325588A (en) | 2013-07-01 | 2013-07-01 | Three-station insulation earthing switch |
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| CN103871773A (en) * | 2014-03-25 | 2014-06-18 | 厦门凯能电力科技有限公司 | Three-station operating mechanism |
| CN104265850A (en) * | 2014-09-13 | 2015-01-07 | 安徽鑫龙电器股份有限公司 | Transmission device and power transmission method thereof |
| CN107170592A (en) * | 2017-06-27 | 2017-09-15 | 广东恒励电气有限公司 | A kind of high pressure manual closing device |
| CN108172445A (en) * | 2017-12-28 | 2018-06-15 | 北京双杰电气股份有限公司 | A kind of isolation earthing or grounding means |
| CN110021494A (en) * | 2018-01-10 | 2019-07-16 | 西门子公司 | Transmission system and switchgear for grounding switch in switch cabinet |
| CN110739165A (en) * | 2019-11-05 | 2020-01-31 | 许继集团有限公司 | Three-position switch operating handle limiting device and three-position switch interlocking device |
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| CN112750631A (en) * | 2019-10-31 | 2021-05-04 | 许继电气股份有限公司 | Three-station operating mechanism |
| CN114068229A (en) * | 2021-11-19 | 2022-02-18 | 泉州市大西洋电力科技有限公司 | Three-station isolating switch integrated operating mechanism for circuit breaker for switch cabinet |
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| CN103871773A (en) * | 2014-03-25 | 2014-06-18 | 厦门凯能电力科技有限公司 | Three-station operating mechanism |
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| CN107170592B (en) * | 2017-06-27 | 2023-12-12 | 广东恒励电气有限公司 | Manual high-pressure brake pressing device |
| CN108172445A (en) * | 2017-12-28 | 2018-06-15 | 北京双杰电气股份有限公司 | A kind of isolation earthing or grounding means |
| CN110021494B (en) * | 2018-01-10 | 2020-11-06 | 西门子公司 | Transmission system for grounding switch in switch cabinet and switch cabinet |
| CN110021494A (en) * | 2018-01-10 | 2019-07-16 | 西门子公司 | Transmission system and switchgear for grounding switch in switch cabinet |
| CN112750631A (en) * | 2019-10-31 | 2021-05-04 | 许继电气股份有限公司 | Three-station operating mechanism |
| CN110931286A (en) * | 2019-11-05 | 2020-03-27 | 许继集团有限公司 | Switchgear and three-position switch and circuit breaker interlocking device thereof |
| CN110739165A (en) * | 2019-11-05 | 2020-01-31 | 许继集团有限公司 | Three-position switch operating handle limiting device and three-position switch interlocking device |
| CN110739165B (en) * | 2019-11-05 | 2021-08-03 | 许继集团有限公司 | Three-position switch operating handle limiting device and three-position switch interlocking device |
| CN110931286B (en) * | 2019-11-05 | 2021-10-22 | 许继集团有限公司 | Switchgear and three-position switch and circuit breaker interlocking device thereof |
| CN112185755A (en) * | 2020-09-02 | 2021-01-05 | 南阳金冠智能开关有限公司 | Electric and manual universal three-station double-hole operating mechanism with double interlocking |
| CN112185755B (en) * | 2020-09-02 | 2023-03-03 | 南阳金冠智能开关有限公司 | Electric and manual universal three-station double-hole operating mechanism with double interlocking function |
| CN112563066A (en) * | 2020-12-04 | 2021-03-26 | 武汉倍诺德开关有限公司 | Miniaturized multistation operating device |
| CN112563066B (en) * | 2020-12-04 | 2023-12-29 | 武汉倍诺德开关有限公司 | Miniaturized multistation operating device |
| CN114068229A (en) * | 2021-11-19 | 2022-02-18 | 泉州市大西洋电力科技有限公司 | Three-station isolating switch integrated operating mechanism for circuit breaker for switch cabinet |
| CN114068229B (en) * | 2021-11-19 | 2024-01-02 | 泉州市大西洋电力科技有限公司 | Three-station isolating switch integrated operating mechanism for breaker for switch cabinet |
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Application publication date: 20130925 |