CN112951644A - Switch board isolating switch locking device - Google Patents
Switch board isolating switch locking device Download PDFInfo
- Publication number
- CN112951644A CN112951644A CN202110210865.0A CN202110210865A CN112951644A CN 112951644 A CN112951644 A CN 112951644A CN 202110210865 A CN202110210865 A CN 202110210865A CN 112951644 A CN112951644 A CN 112951644A
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- CN
- China
- Prior art keywords
- gear
- crank arm
- intermediate shaft
- isolating switch
- rotate
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- 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
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- 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
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Mechanisms For Operating Contacts (AREA)
Abstract
The invention relates to a switch board isolating switch locking device, which effectively solves the problem of poor reliability and durability of a locking mechanism; the technical scheme includes that the breaker comprises a cabinet body, a disc mechanism for operating an isolating switch and a crank arm for operating a breaker, wherein a first gear is fixedly mounted on a rotating shaft of the crank arm, the first gear can be driven to rotate synchronously when the crank arm is rotated, an intermediate shaft which is parallel to the crank arm and can rotate is mounted on the cabinet body, a second gear is fixedly mounted on the intermediate shaft, the first gear is meshed with the second gear, a third gear which cannot rotate is mounted on the intermediate shaft, the third gear is in threaded fit with the intermediate shaft, the intermediate shaft can axially move due to the rotation of the intermediate shaft, a fourth gear is coaxially fixed on the disc mechanism, and the third gear can be meshed with or separated from the fourth gear due to the axial movement; the invention provides a brand-new isolating switch locking mechanism, which overcomes the instability of a flexible piece and a rod piece and improves the reliability and the durability of the mechanism.
Description
Technical Field
The invention relates to the field of power supply equipment, in particular to an isolation switch locking device of a power distribution cabinet.
Background
The isolating switch is a switch device which isolates a power supply, performs switching operation, is used for connecting and disconnecting a circuit and has no arc extinguishing function; because the isolating switch has no arc extinguishing function, the isolating switch is strictly forbidden to be operated in a live state, and the circuit breaker is required to be disconnected firstly and then the isolating switch is required to be operated, so that a locking mechanism is arranged between the isolating switch and the circuit breaker of the power distribution cabinet, and the isolating switch is locked when the circuit breaker is closed; the disc mechanism is one of the disconnecting switch operating mechanisms, and the locking mechanism is generally connected between the disc mechanism and a crank arm of the circuit breaker; the existing locking mechanism generally adopts flexible pieces or rod pieces such as cables, and the rigidity and the stability of the flexible pieces and the rod pieces are poor, so that the reliability of the locking mechanism is influenced; in addition, the locking mechanism is generally reset by an elastic member, and the elastic member may age after being used for a long time, which may also affect the operational reliability of the locking mechanism.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the switch cabinet isolating switch-off lock device, which effectively solves the problem of poor reliability and durability of the lock device.
The technical scheme of its solution is, switch board isolator locking device, the intelligent cabinet temperature adjusting device comprises a cabinet body, the disc mechanism of operation isolator and the connecting lever of operation circuit breaker, the pivot fixed mounting of connecting lever has a first gear, can drive first gear synchronous rotation when rotating the connecting lever, install one on the cabinet body and parallel and rotatable jackshaft with the connecting lever, fixed mounting has a second gear on the jackshaft, first gear and second gear meshing, install a third gear that can not pivoted on the jackshaft, through screw-thread fit between third gear and the jackshaft, the jackshaft rotates and can make third gear along axial displacement, the last coaxial fourth gear that is fixed with of disc mechanism, third gear axial displacement can with fourth gear meshing or break away from.
Furthermore, a sliding rod parallel to the intermediate shaft is fixed on the cabinet body and penetrates through the third gear, so that the third gear cannot rotate along with the intermediate shaft.
Furthermore, the diameter of the first gear is larger than that of the second gear, so that the first gear can drive the second gear and the intermediate shaft to rotate for more turns within the rotation range of the crank arm, and the third gear is enough to be meshed with or separated from the fourth gear.
The invention provides a brand-new isolating switch locking mechanism, which overcomes the instability of a flexible piece and a rod piece and greatly improves the reliability and durability of the mechanism.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention when locked.
Fig. 3 is a top view of the present invention when unlocked.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the isolating switch cabinet comprises a cabinet body 1, a disc mechanism 2 for operating an isolating switch and a crank arm 3 for operating a circuit breaker, wherein a first gear 4 is fixedly installed on a rotating shaft of the crank arm 3, the first gear 4 can be driven to synchronously rotate when the crank arm 3 is rotated, an intermediate shaft 5 which is parallel to the crank arm 3 and can rotate is installed on the cabinet body 1, a second gear 6 is fixedly installed on the intermediate shaft 5, the first gear 4 is meshed with the second gear 6, a third gear 7 which cannot rotate is installed on the intermediate shaft 5, the third gear 7 is in threaded fit with the intermediate shaft 5, the intermediate shaft 5 can axially move the third gear 7 when the intermediate shaft 5 rotates, a fourth gear 8 is coaxially fixed on the disc mechanism 2, and the third gear 7 can be meshed with or separated from the fourth gear 8 when the third gear 7 axially moves.
A sliding rod 9 parallel to the intermediate shaft 5 is fixed on the cabinet body 1, and the sliding rod 9 penetrates through the third gear 7, so that the third gear 7 cannot rotate along with the intermediate shaft 5.
The diameter of the first gear 4 is larger than that of the second gear 6, so that the first gear 4 can drive the second gear 6 and the intermediate shaft 5 to rotate more times within the rotation range of the crank arm 3, and the third gear 7 can be meshed with or separated from the fourth gear 8 sufficiently.
When the circuit breaker is in a closed state, the third gear 7 and the fourth gear 8 are in a meshed state, the third gear 7 cannot rotate, so that the fourth gear 8 and the disc mechanism 2 are also locked, the isolating switch cannot be operated, when the isolating switch needs to be operated, the crank arm 3 is firstly rotated to enable the circuit breaker to be switched to a circuit breaking state, the first gear 4 drives the second gear 6 and the intermediate shaft 5 to rotate when the crank arm 3 rotates, the intermediate shaft 5 rotates to push the third gear 7 to axially move through threads, and when the crank arm 3 rotates until the circuit breaker is completely disconnected, the third gear 7 is separated from the fourth gear 8, so that the fourth gear 8 is in locking contact, and the isolating switch can be operated.
When the crank arm 3 is rotated to close the circuit breaker, the first gear 4 drives the second gear 6 and the intermediate shaft 5 to rotate in opposite directions, and the third gear 7 moves axially to be meshed with the fourth gear 8 under the action of the threads, so that the fourth gear 8 and the disc mechanism 2 are locked again.
The invention provides a brand-new isolating and locking mechanism, which does not use an elastic piece, a flexible piece and a rod piece, can avoid functional faults caused by aging of the elastic piece, overcomes the instability of the flexible piece and the rod piece, and greatly improves the reliability and the durability of the mechanism.
Claims (3)
1. Switch board isolator locking device, including the cabinet body (1), operate isolator's disc mechanism (2) and operation breaker's crank arm (3), its characterized in that, the pivot fixed mounting of crank arm (3) has a first gear (4), can drive first gear (4) synchronous revolution when rotating crank arm (3), install on the cabinet body (1) one and parallel and rotatable jackshaft (5) with crank arm (3), fixed mounting has a second gear (6) on jackshaft (5), first gear (4) and second gear (6) meshing, install a third gear (7) that can not rotate on jackshaft (5), through screw-thread fit between third gear (7) and jackshaft (5), jackshaft (5) rotate and can make third gear (7) along axial displacement, be fixed with a fourth gear (8) on the disc mechanism (2) coaxially, the third gear (7) can be axially moved to be engaged with or disengaged from the fourth gear (8).
2. The switch cabinet isolating switch and closing lock device according to claim 1, characterized in that a sliding rod (9) parallel to the intermediate shaft (5) is fixed on the cabinet body (1), and the sliding rod (9) passes through the third gear (7).
3. A switch cabinet disconnector according to claim 1, characterized in that said first gear wheel (4) has a larger diameter than said second gear wheel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110210865.0A CN112951644B (en) | 2021-02-25 | 2021-02-25 | Switch board isolating switch locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110210865.0A CN112951644B (en) | 2021-02-25 | 2021-02-25 | Switch board isolating switch locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112951644A true CN112951644A (en) | 2021-06-11 |
| CN112951644B CN112951644B (en) | 2023-02-28 |
Family
ID=76246197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110210865.0A Active CN112951644B (en) | 2021-02-25 | 2021-02-25 | Switch board isolating switch locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112951644B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103429A2 (en) * | 1982-09-10 | 1984-03-21 | Lionweld Limited | Locking device |
| CN200986884Y (en) * | 2006-12-14 | 2007-12-05 | 广东省顺德开关厂有限公司 | Three-position isolation switch mechanical interlock |
| CN202855613U (en) * | 2012-10-29 | 2013-04-03 | 许昌永新电气股份有限公司 | Novel clutch transmission device for disconnecting switch |
| CN204117876U (en) * | 2014-09-03 | 2015-01-21 | 浙江正泰电器股份有限公司 | A kind of double power supply automatic transfer switch |
| CN204946765U (en) * | 2015-08-26 | 2016-01-06 | 国网山东高密市供电公司 | A kind of high-voltage switch cabinet isolation switch locking device |
| CN105336525A (en) * | 2015-11-27 | 2016-02-17 | 平高集团有限公司 | Interlocking device for switch device and switch cabinet using same |
| CN108895134A (en) * | 2018-09-10 | 2018-11-27 | 湖北火爆机器人科技有限公司 | A kind of speed reducing driving device and its operating method |
| CN208622651U (en) * | 2018-09-14 | 2019-03-19 | 协成科技股份有限公司 | A kind of breaker |
| CN110491713A (en) * | 2019-08-21 | 2019-11-22 | 兴机电器有限公司 | A kind of earthing switch operation cabinet equipped with electrically operated device |
| CN111322368A (en) * | 2018-12-14 | 2020-06-23 | 伦克股份有限公司 | Power shift transmission device |
-
2021
- 2021-02-25 CN CN202110210865.0A patent/CN112951644B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0103429A2 (en) * | 1982-09-10 | 1984-03-21 | Lionweld Limited | Locking device |
| CN200986884Y (en) * | 2006-12-14 | 2007-12-05 | 广东省顺德开关厂有限公司 | Three-position isolation switch mechanical interlock |
| CN202855613U (en) * | 2012-10-29 | 2013-04-03 | 许昌永新电气股份有限公司 | Novel clutch transmission device for disconnecting switch |
| CN204117876U (en) * | 2014-09-03 | 2015-01-21 | 浙江正泰电器股份有限公司 | A kind of double power supply automatic transfer switch |
| CN204946765U (en) * | 2015-08-26 | 2016-01-06 | 国网山东高密市供电公司 | A kind of high-voltage switch cabinet isolation switch locking device |
| CN105336525A (en) * | 2015-11-27 | 2016-02-17 | 平高集团有限公司 | Interlocking device for switch device and switch cabinet using same |
| CN108895134A (en) * | 2018-09-10 | 2018-11-27 | 湖北火爆机器人科技有限公司 | A kind of speed reducing driving device and its operating method |
| CN208622651U (en) * | 2018-09-14 | 2019-03-19 | 协成科技股份有限公司 | A kind of breaker |
| CN111322368A (en) * | 2018-12-14 | 2020-06-23 | 伦克股份有限公司 | Power shift transmission device |
| CN110491713A (en) * | 2019-08-21 | 2019-11-22 | 兴机电器有限公司 | A kind of earthing switch operation cabinet equipped with electrically operated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112951644B (en) | 2023-02-28 |
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