CN111146038A - Gas insulation looped netowrk cabinet isolating mechanism - Google Patents
Gas insulation looped netowrk cabinet isolating mechanism Download PDFInfo
- Publication number
- CN111146038A CN111146038A CN202010065003.9A CN202010065003A CN111146038A CN 111146038 A CN111146038 A CN 111146038A CN 202010065003 A CN202010065003 A CN 202010065003A CN 111146038 A CN111146038 A CN 111146038A
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- Prior art keywords
- isolation
- grounding
- switch
- hole
- plate
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- 238000009413 insulation Methods 0.000 title claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 116
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a gas insulation ring main unit isolation mechanism, which comprises a front support plate and a rear support plate which are parallel to each other, an isolation switch operating shaft, a grounding switch operating shaft, an interlocking fixing plate, an isolation operating shaft sleeve and a grounding operating shaft sleeve, wherein the isolation switch operating shaft and the grounding switch operating shaft are linked through a first gear and a second gear, and an isolation operating hole and a grounding operating hole are arranged on the interlocking fixing plate; the requirement of five-prevention interlocking is met, and the structure design is simple and reasonable, the size is small, and the stability is good.
Description
Technical Field
The invention relates to the field of high-voltage cabinet structures, in particular to a gas insulation ring main unit isolation mechanism.
Background
The existing three-station isolation mechanism in the market mostly adopts a mode of combining a coil spring and a spring, and has the problems of complex structure, high cost, large volume, poor mechanical property stability and the like.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides the gas insulation ring main unit isolation mechanism which is simple and reasonable in structural design, small in size and good in stability.
According to an embodiment of the first aspect of the invention, the gas insulation ring main unit isolation mechanism comprises:
the supporting device comprises a front supporting plate and a rear supporting plate which are parallel to each other, wherein the front supporting plate and the rear supporting plate are fixedly connected through a supporting rod;
the isolating switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a first gear;
the grounding switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a second gear, and the second gear is meshed with the first gear;
the interlocking fixing plate is fixed on the back of the front supporting plate and is provided with an isolating operation hole corresponding to the isolating switch operation shaft and a grounding operation hole corresponding to the grounding switch operation shaft;
the isolation operation shaft sleeve is sleeved at the front end of the isolation switch operation shaft, corresponds to the isolation operation hole and is provided with an isolation abdicating hole for inserting the operation rod;
the grounding operation shaft sleeve is sleeved at the front end of the grounding switch operation shaft, corresponds to the grounding operation hole and is provided with a grounding abdication hole for inserting the operation rod;
wherein:
the grounding operation hole is positioned on the left side of the isolation operation hole, the left part of the grounding operation hole is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole is correspondingly set as an isolation working station of the isolation switch;
when the grounding abdicating hole rotates to the position corresponding to the grounding station of the grounding switch, the isolating abdicating hole rotates to the left side corresponding to the isolating station of the isolating switch; when the grounding abdicating hole rotates to a position corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to a position corresponding to the isolation switch isolation station; when the grounding yielding hole rotates to the left side corresponding to the grounding switch isolation station, the isolation yielding hole rotates to the left side corresponding to the isolation switch working station.
According to the embodiment of the invention, the gas insulation ring main unit isolation mechanism at least has the following beneficial effects: by respectively arranging the isolating switch operating shaft and the grounding switch operating shaft which are linked through the first gear and the second gear and arranging the isolating operating hole and the grounding operating hole on the interlocking fixing plate, if the isolating switch is in a working state at present, the isolating abdicating hole is aligned to the isolating switch working station and the grounding abdicating hole is aligned to the left side of the grounding switch isolating station, the operating rod cannot be inserted into the grounding operating hole, and the grounding switch is prevented from being electrically connected; if need the outage, then insert the isolation handle hole with the action bars behind the circuit breaker that needs to break off, and anticlockwise rotate the action bars and make isolation abdicating the hole and aim at isolator isolation station, ground connection abdicating the hole also rotates and aim at earthing switch isolation station, the action bars can insert the ground connection action holes this moment, clockwise rotate and make ground connection abdicating the hole and aim at earthing switch earthing station, isolation abdicating the hole and also rotate the left side of aiming at isolator isolation station this moment, be in ground state and keep apart abdicating the hole and keeping apart the dislocation of action holes this moment, the action bars can't insert in the isolation handle hole, prevent the mistake and close isolator, satisfy the requirement of five-prevention interlocking, and structural design is simple reasonable, small, and good stability.
According to some embodiments of the present invention, a hole position baffle is further disposed between the front support plate and the interlocking fixing plate, the hole position baffle extends out of the push rod towards the front support plate, a horizontal elongated hole for the push rod to move left and right is disposed on the front support plate, when the push rod is pushed to the left side of the horizontal elongated hole, the hole position baffle shields the grounding operation hole and leaks out of the isolation operation hole, and when the push rod is pushed to the right side of the horizontal elongated hole, the hole position baffle shields the isolation operation hole and leaks out of the grounding operation hole. The hole position baffle is arranged, and only the isolating operation hole or the grounding operation hole can be leaked at each time, so that an operator can further determine whether the isolating switch or the grounding switch is operated at present, and mistakes are avoided.
According to some embodiments of the present invention, the upper side and the lower side of the hole site baffle are respectively provided with an upper positioning block and a lower positioning block, the upper portions of the front support plate, the upper positioning block and the interlocking fixing plate are fixed by screws, the lower portions of the front support plate, the lower positioning block and the interlocking fixing plate are fixed by screws, and the upper positioning block, the lower positioning block, the front support plate and the interlocking fixing plate are enclosed to form a cavity for placing the hole site baffle.
According to some embodiments of the invention, the grounding switch further comprises an isolation microswitch and a grounding microswitch for controlling a status indicator lamp, a microswitch trigger plate for triggering the isolation microswitch and the grounding microswitch, and an auxiliary switch crank arm for driving the microswitch trigger plate to rotate, wherein the isolation microswitch and the grounding microswitch are fixed on the rear support plate through a microswitch mounting plate, the left side and the right side of the microswitch trigger plate are provided with microswitch trigger blocks, the middle part of the microswitch trigger plate is hinged on the microswitch mounting plate, one end of the auxiliary switch crank arm is connected with the microswitch trigger plate, and the other end of the auxiliary switch crank arm is connected with the rear end part of the grounding switch operating shaft. When the earthing switch operating shaft rotates to switch the state, the auxiliary switch connecting lever drives the micro-switch trigger plate to move, so that the micro-switch trigger block triggers the isolation micro-switch or the earthing micro-switch to realize the state control of the indicator lamp.
According to some embodiments of the invention, the rear end portion of the disconnecting switch operating shaft is provided with a circuit breaker blocking trigger block, which is a circular block with a notch. When the disconnecting switch operating shaft rotates to switch the state, the circuit breaker can be locked through the circuit breaker locking triggering block, and the circuit breaker is prevented from being mistakenly closed when the disconnecting switch is disconnected.
According to some embodiments of the invention, the cabinet door interlocking device comprises an intermediate fixing plate mounted on the operating shaft of the grounding switch, a cabinet door interlocking pressing plate connected with the intermediate fixing plate, and a cabinet door interlocking triggering arc block connected with the cabinet door interlocking pressing plate. When earthing switch operation axle rotates the switching state, drive cabinet door interlocking clamp plate motion through middle fixed plate, cabinet door interlocking clamp plate drives cabinet door interlocking and triggers the circular arc piece and rotate for realize the interlocking with the cabinet door, the cabinet door can be opened when avoiding earthing switch disconnection, prevents that the mistake from going into electrified interval.
Drawings
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is an overall schematic view of an isolation mechanism of a gas-insulated ring main unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an isolation mechanism of a gas-insulated ring main unit according to an embodiment of the present invention;
fig. 3 is another schematic structural view of an isolation mechanism of a gas-insulated ring main unit according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and fig. 2, a gas insulation ring main unit isolation mechanism according to an embodiment of the present invention includes:
the front support plate 100 and the rear support plate 200 are parallel to each other, and the front support plate 100 and the rear support plate 200 are connected and fixed through support rods;
an isolator operating shaft 300 bridged between the front support plate 100 and the rear support plate 200 and sleeved with a first gear 310;
a ground switch operating shaft 400 bridged between the front support plate 100 and the rear support plate 200, and sleeved with a second gear 410, the second gear 410 being engaged with the first gear 310;
an interlock fixing plate 500 fixed to the rear surface of the front support plate 100 and provided with an isolation operation hole 510 corresponding to the isolation switch operation shaft 300 and a ground operation hole 520 corresponding to the ground switch operation shaft 400;
an isolation operation shaft sleeve 320 which is sleeved at the front end of the isolation switch operation shaft 300, corresponds to the isolation operation hole 510, and is provided with an isolation abdication hole 321 for inserting the operation rod;
a ground operation shaft sleeve 420 fitted over the front end of the ground switch operation shaft 400 and having a ground escape hole 421 into which the operation rod is inserted, corresponding to the ground operation hole 520;
wherein:
the grounding operation hole 520 is positioned at the left side of the isolation operation hole 510, the left part of the grounding operation hole 520 is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole 520 is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole 510 is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole 510 is correspondingly set as an isolation working station of the isolation switch;
when the grounding abdication hole 421 rotates to the corresponding grounding station of the grounding switch, the isolation abdication hole 321 rotates to the left side of the corresponding isolation station of the isolation switch; when the grounding abdication hole 421 rotates to the corresponding grounding switch isolation station, the isolation abdication hole 321 rotates to the corresponding isolation switch isolation station; when the grounding abdicating hole 421 rotates to the left side of the corresponding grounding switch isolation station, the isolation abdicating hole 321 rotates to the corresponding isolation switch working station.
According to the gas insulation ring main unit isolation mechanism provided by the embodiment of the invention, the isolation switch operation shaft 300 and the grounding switch operation shaft 400 are respectively arranged, the isolation switch operation shaft 300 and the grounding switch operation shaft 400 are linked through the first gear 310 and the second gear 410, and the isolation operation hole 510 and the grounding operation hole 520 are arranged on the interlocking fixing plate 500, if the isolation switch is in a power-on state at present, namely the isolation switch is in a working state, the isolation abdicating hole 321 is aligned to the isolation switch working station and the grounding abdicating hole 421 is aligned to the left side of the grounding switch isolation station, an operation rod cannot be inserted into the grounding operation hole 520, so that the grounding switch is prevented from being electrically connected; if the circuit breaker needs to be powered off, the operating rod is inserted into the isolation operating hole 510 after the circuit breaker needs to be disconnected, the operating rod is rotated anticlockwise to enable the isolation abdicating hole 321 to be aligned with the isolation station of the isolating switch, meanwhile, the grounding abdicating hole 421 also rotates to be aligned with the isolation station of the grounding switch, the operating rod can be inserted into the grounding operating hole 520 at the moment, the grounding abdicating hole 421 is aligned with the grounding station of the grounding switch through clockwise rotation, meanwhile, the isolation abdicating hole 321 also rotates to be aligned with the left side of the isolation station of the isolating switch, at the moment, the operating rod is in a grounding state, the isolation abdicating hole 321 is staggered with the isolation operating hole 510, the operating rod cannot be inserted into the isolation operating hole 510, the isolating switch is prevented from being mistakenly closed.
Referring to fig. 2, in some embodiments of the present invention, a hole position baffle 600 is further disposed between the front support plate 100 and the interlocking fixing plate 500, the hole position baffle 600 extends a push rod 610 out of the front support plate 100, a horizontal elongated hole 110 for the push rod 610 to move left and right is disposed on the front support plate 100, when the push rod 610 pushes the left side of the horizontal elongated hole 110, the hole position baffle 600 blocks the grounding operation hole 520 and leaks out of the isolating operation hole 510, and when the push rod 610 pushes the right side of the horizontal elongated hole 110, the hole position baffle 600 blocks the isolating operation hole 510 and leaks out of the grounding operation hole 520. The hole site baffle 600 is arranged, and only the isolating operation hole 510 or the grounding operation hole 520 can be leaked out each time, so that an operator can further determine whether the isolating switch or the grounding switch is operated at present, and errors are avoided.
Referring to fig. 2, in some embodiments of the present invention, an upper positioning block 620 and a lower positioning block 630 are respectively disposed on upper and lower sides of the hole site baffle 600, upper portions of the front support plate 100, the upper positioning block 620 and the interlocking fixing plate 500 are fixed by screws, lower portions of the front support plate 100, the lower positioning block 630 and the interlocking fixing plate 500 are fixed by screws, and the upper positioning block 620, the lower positioning block 630, the front support plate 100 and the interlocking fixing plate 500 enclose to form a chamber for placing the hole site baffle 600.
Referring to fig. 3, in some embodiments of the present invention, the present invention further includes an isolating microswitch 710 and an earthing microswitch 720 for controlling the status indicator light, a microswitch trigger plate 730 for triggering the isolating microswitch 710 and the earthing microswitch 720, and an auxiliary switch crank arm 740 for driving the microswitch trigger plate 730 to rotate, wherein the isolating microswitch 710 and the earthing microswitch 720 are fixed on the rear support plate 200 through a microswitch mounting plate 750, microswitch trigger blocks 731 are disposed on the left and right sides of the microswitch trigger plate 730, the middle part of the microswitch trigger plate 730 is hinged on the microswitch mounting plate 750, one end of the auxiliary switch crank arm 740 is connected to the microswitch trigger plate 730, and the other end is connected to the rear end of the earthing switch operating shaft 400. When the earthing switch operation shaft 400 rotates to switch the state, the auxiliary switch crank arm 740 drives the micro-switch trigger plate 730 to move, so that the micro-switch trigger block 731 triggers the isolation micro-switch 710 or the earthing micro-switch 720 to realize the state control of the indicator lamp.
Referring to fig. 3, in some embodiments of the present invention, a circuit breaker latch triggering block 330 is provided at a rear end portion of the disconnecting switch operating shaft 300, and the circuit breaker latch triggering block 330 is a circular block with a notch. When the disconnecting switch operating shaft 300 rotates to switch states, the breaker can be locked through the breaker locking triggering block 330, and the breaker is prevented from being closed by mistake when the disconnecting switch is disconnected.
Referring to fig. 2, in some embodiments of the present invention, a cabinet door interlocking apparatus is further included, and the cabinet door interlocking apparatus includes an intermediate fixing plate 810 installed on the ground switch operating shaft 400, a cabinet door interlocking pressing plate 820 connected to the intermediate fixing plate 810, and a cabinet door interlocking triggering arc block 830 connected to the cabinet door interlocking pressing plate 820. When earthing switch operation axis 400 rotates the switching state, drive cabinet door interlocking clamp plate 820 through middle fixed plate 810 and move, cabinet door interlocking clamp plate 820 drives cabinet door interlocking and triggers arc piece 830 and rotate for realize the interlocking with the cabinet door, the cabinet door can be opened when avoiding earthing switch disconnection, prevents that the mistake from going into electrified interval.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. The utility model provides a gas insulation looped netowrk cabinet isolating mechanism which characterized in that includes:
the supporting device comprises a front supporting plate and a rear supporting plate which are parallel to each other, wherein the front supporting plate and the rear supporting plate are fixedly connected through a supporting rod;
the isolating switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a first gear;
the grounding switch operating shaft is bridged between the front supporting plate and the rear supporting plate and is sleeved with a second gear, and the second gear is meshed with the first gear;
the interlocking fixing plate is fixed on the back of the front supporting plate and is provided with an isolating operation hole corresponding to the isolating switch operation shaft and a grounding operation hole corresponding to the grounding switch operation shaft;
the isolation operation shaft sleeve is sleeved at the front end of the isolation switch operation shaft, corresponds to the isolation operation hole and is provided with an isolation abdicating hole for inserting the operation rod;
the grounding operation shaft sleeve is sleeved at the front end of the grounding switch operation shaft, corresponds to the grounding operation hole and is provided with a grounding abdication hole for inserting the operation rod;
wherein:
the grounding operation hole is positioned on the left side of the isolation operation hole, the left part of the grounding operation hole is correspondingly set as a grounding switch isolation station, and the right part of the grounding operation hole is correspondingly set as a grounding switch grounding station; the left part of the isolation operation hole is correspondingly set as an isolation station of the isolation switch, and the right part of the isolation operation hole is correspondingly set as an isolation working station of the isolation switch;
when the grounding abdicating hole rotates to the position corresponding to the grounding station of the grounding switch, the isolating abdicating hole rotates to the left side corresponding to the isolating station of the isolating switch; when the grounding abdicating hole rotates to a position corresponding to the grounding switch isolation station, the isolation abdicating hole rotates to a position corresponding to the isolation switch isolation station; when the grounding yielding hole rotates to the left side corresponding to the grounding switch isolation station, the isolation yielding hole rotates to the left side corresponding to the isolation switch working station.
2. The mechanism of claim 1, wherein a hole site baffle is further disposed between the front supporting plate and the interlocking fixing plate, the hole site baffle extends a push rod towards the front supporting plate, a horizontal strip hole for the push rod to move left and right is disposed on the front supporting plate, when the push rod is pushed to the left side of the horizontal strip hole, the hole site baffle shields the grounding operation hole and leaks the isolation operation hole, and when the push rod is pushed to the right side of the horizontal strip hole, the hole site baffle shields the isolation operation hole and leaks the grounding operation hole.
3. The gas insulation ring main unit isolation mechanism as claimed in claim 2, wherein an upper locating block and a lower locating block are respectively disposed at upper and lower sides of the hole site baffle, the upper portions of the front support plate, the upper locating block and the interlocking fixing plate are fixed by screws, the lower portions of the front support plate, the lower locating block and the interlocking fixing plate are fixed by screws, and the upper locating block, the lower locating block, the front support plate and the interlocking fixing plate are enclosed to form a chamber for placing the hole site baffle.
4. The gas insulation ring main unit isolation mechanism according to claim 1, further comprising an isolation micro switch and a grounding micro switch for controlling the status indicator lamp, a micro switch trigger plate for triggering the isolation micro switch and the grounding micro switch, and an auxiliary switch crank arm for driving the micro switch trigger plate to rotate, wherein the isolation micro switch and the grounding micro switch are fixed on the rear support plate through a micro switch mounting plate, micro switch trigger blocks are arranged on the left side and the right side of the micro switch trigger plate, the middle part of the micro switch trigger plate is hinged on the micro switch mounting plate, one end of the auxiliary switch crank arm is connected with the micro switch trigger plate, and the other end of the auxiliary switch crank arm is connected with the rear end part of the grounding switch operating shaft.
5. The isolating mechanism of a gas insulated ring main unit according to claim 1, wherein the rear end of the operating shaft of the isolating switch is provided with a circuit breaker locking trigger block, and the circuit breaker locking trigger block is a circular block with a notch.
6. The gas insulation ring main unit isolation mechanism according to claim 1, further comprising a cabinet door interlocking device, wherein the cabinet door interlocking device comprises an intermediate fixing plate mounted on the grounding switch operating shaft, a cabinet door interlocking pressing plate connected with the intermediate fixing plate, and a cabinet door interlocking triggering arc block connected with the cabinet door interlocking pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065003.9A CN111146038A (en) | 2020-01-20 | 2020-01-20 | Gas insulation looped netowrk cabinet isolating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065003.9A CN111146038A (en) | 2020-01-20 | 2020-01-20 | Gas insulation looped netowrk cabinet isolating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111146038A true CN111146038A (en) | 2020-05-12 |
Family
ID=70526351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010065003.9A Pending CN111146038A (en) | 2020-01-20 | 2020-01-20 | Gas insulation looped netowrk cabinet isolating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111146038A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114551181A (en) * | 2022-03-22 | 2022-05-27 | 浙江兴邦电气有限公司 | Middle-positioned inflatable cabinet isolation operating mechanism |
-
2020
- 2020-01-20 CN CN202010065003.9A patent/CN111146038A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114551181A (en) * | 2022-03-22 | 2022-05-27 | 浙江兴邦电气有限公司 | Middle-positioned inflatable cabinet isolation operating mechanism |
| CN114551181B (en) * | 2022-03-22 | 2024-02-13 | 浙江兴邦电气有限公司 | Isolation operating mechanism of centrally-mounted inflatable cabinet |
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