CN113936940B - Lower door interlock of direct-acting upper isolation breaker - Google Patents
Lower door interlock of direct-acting upper isolation breaker Download PDFInfo
- Publication number
- CN113936940B CN113936940B CN202111214697.9A CN202111214697A CN113936940B CN 113936940 B CN113936940 B CN 113936940B CN 202111214697 A CN202111214697 A CN 202111214697A CN 113936940 B CN113936940 B CN 113936940B
- Authority
- CN
- China
- Prior art keywords
- plate
- rod
- circuit breaker
- sliding rod
- frame plate
- 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.)
- Active
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 235000009074 Phytolacca americana Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Landscapes
- Trip Switchboards (AREA)
- Patch Boards (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a lower door interlock of a direct-acting upper isolation breaker, which comprises the following steps: the circuit breaker comprises a frame plate, a grounding switch module arranged at the top of the frame plate and a breaker switch module arranged in the middle of the frame plate; the circuit breaker interlocking module comprises a circuit breaker deflector rod, a second sliding rod and a limiting rod, wherein the bottom of the second sliding rod is connected with a door locking hanging rod, the circuit breaker deflector rod protrudes out of the frame plate and is fixed on the second sliding rod to drive the second sliding rod to slide up and down, and the opening/closing of the cabin door is adjusted through the door locking hanging rod. The grounding switch module comprises a grounding shifting plate, a first sliding rod and a clamping plate, wherein the grounding shifting plate protrudes out of the frame plate and is fixed on the first sliding rod to drive the first sliding rod to slide left and right, and the tail end of the first sliding rod is connected with one end of the clamping plate and is matched with the limiting rod. The invention can realize the interlocking of the grounding switch and the interlocking of the circuit breaker to form a single interlocking.
Description
Technical Field
The invention relates to a lower door interlock of a direct-acting upper isolation breaker, and belongs to the technical field of voltage distribution.
Background
The direct-acting upper isolation circuit breaker on the market is widely applied, and a cable bin assembled with the direct-acting upper isolation circuit breaker generally adopts an electronic lock to realize lower door interlocking, and has no mechanical lower door interlocking with a simple structure.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a direct-acting upper isolation breaker lower door interlock which can realize the interlocking of a grounding switch and the interlocking of a breaker to form a single interlock.
The invention provides a lower door interlock of a direct-acting upper isolation breaker, which comprises the following components: the circuit breaker comprises a bent frame plate, a grounding switch module arranged at the top of the frame plate and a breaker switch module arranged in the middle of the frame plate;
the circuit breaker interlocking module comprises a circuit breaker deflector rod, a second sliding rod and a limiting rod, wherein the bottom of the second sliding rod is connected with a door locking hanging rod, the circuit breaker deflector rod protrudes out of the frame plate and is connected with a circuit breaker switch, and the circuit breaker deflector rod is fixed on the second sliding rod and drives the second sliding rod to slide up and down to adjust the opening/closing of the cabin door through the door locking hanging rod;
The grounding switch module comprises a grounding shifting plate, a first sliding rod and a clamping plate, wherein the grounding shifting plate protrudes out of the frame plate and is connected with the grounding switch, the grounding shifting plate is fixed on the first sliding rod and drives the first sliding rod to slide left and right, the tail end of the first sliding rod is connected with one end of the clamping plate, and the clamping plate is matched with the limiting rod to limit the opening/closing of the cabin door;
The utility model discloses a door lock, including the cardboard, the gag lever post is connected with the top of second slide bar, the other end protrusion frame board of cardboard, be equipped with the through-hole on the cardboard, the cardboard is driven down and is removed at first slide bar, when the gag lever post with the center pin of through-hole is not aligned, and the upward movement of gag lever post is blocked by the cardboard, and the door lock peg can't lift up.
Further, the grounding switch module is fixedly connected to the top of the frame plate through a support plate, and the first sliding rod is fixedly connected to the support plate.
Further, the support plate is fixedly connected to the top of the frame plate through a fixing pin, and the first sliding rod slides left and right in the support plate.
Further, a first reset spring is sleeved on the first sliding rod, one end of the first reset spring is connected with the grounding shifting plate, and the other end of the first reset spring is fixedly connected to the support plate and used for resetting the grounding shifting plate.
Further, the breaker switch module is fixedly connected to the middle of the frame plate through a support, and the second sliding rod slides up and down in the support.
Further, the bracket is fixedly connected to the middle part of the frame plate through a screw.
Further, the circuit breaker driving lever side is equipped with thick cardboard, the cover has second reset spring on the second slide bar, thick cardboard rigid coupling is at second reset spring top, second reset spring bottom is fixed on the support, when the circuit breaker driving lever upward movement, through the reset action of second reset spring, second slide bar upward movement.
Further, the side of the frame plate is provided with a sliding plate, the sliding plate slides up and down on the bending surface of the frame plate, the bending height is limited to move up and down, the sliding plate is provided with a baffle plate, and the baffle plate can block the breaker and is used for prohibiting the breaker switch from being operated.
Further, the device also comprises a limiting plate fixedly connected to the frame plate, wherein the limiting rod penetrates through the limiting plate and is used for ensuring that the limiting rod can be aligned with the central shaft of the through hole when sliding up and down.
Compared with the prior art, the lower door interlock of the direct-acting upper isolation breaker provided by the invention has the beneficial effects that:
The invention relates to a bent frame plate, a grounding switch module arranged at the top of the frame plate and a breaker switch module arranged in the middle of the frame plate; the modular structure greatly improves the assembly efficiency, reduces the production cost, and is assembled on a plate to form a single interlocking module;
The grounding switch module comprises a grounding shifting plate, a first sliding rod and a clamping plate, wherein the grounding shifting plate protrudes out of a frame plate and is connected with a grounding switch, the grounding shifting plate is fixed on the first sliding rod and drives the first sliding rod to slide left and right, and the tail end of the first sliding rod is connected with one end of the clamping plate; the circuit breaker interlocking module comprises a circuit breaker deflector rod, a second sliding rod and a limiting rod, wherein the bottom of the second sliding rod is connected with a door locking hanging rod, the circuit breaker deflector rod protrudes out of the frame plate and is connected with a circuit breaker switch, and the circuit breaker deflector rod is fixed on the second sliding rod and drives the second sliding rod to slide up and down to adjust the opening/closing of the cabin door through the door locking hanging rod; the interlocking of the grounding switch and the interlocking of the circuit breaker can be realized, and the reliability of the lower door interlocking is ensured;
the limiting rod is connected with the top of the second sliding rod, the other end of the clamping plate protrudes out of the frame plate, a through hole is formed in the clamping plate, when the limiting rod is not aligned with the central axis of the through hole, the upward movement of the limiting rod is blocked by the clamping plate, the door locking hanging rod cannot be lifted, and the cabin door cannot be opened;
The invention can be arranged on different direct-acting upper isolating breaker switches, and has small volume and convenient debugging and assembly.
Drawings
Fig. 1 is a front view of a lower door interlock of a direct-acting upper disconnecting circuit breaker provided by the invention;
fig. 2 is a side view of a lower door interlock for a direct-acting upper isolation circuit breaker provided by the present invention;
fig. 3 is a block diagram of a clamping plate of a lower door interlock of a direct-acting upper isolation breaker.
In the figure:
1. A support plate; 2. a grounding shifting plate; 3. a first slide bar; 4. a fixing pin; 5. a clamping plate; 6. a screw; 7. a bracket; 8. a second slide bar; 9. a slide plate; 10. a frame plate; 11. a limit rod; 12. a baffle; 13. a limiting plate; 14. a thick clamping plate; 15. a circuit breaker deflector rod; 16. a second return spring; 17. a door locking hanging rod.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1-3, a direct-acting upper isolation circuit breaker lower door interlock includes a bent frame plate 10, a grounding switch module, and a circuit breaker switch module.
As shown in fig. 1, the grounding switch module is fixedly connected to the top of the frame plate 10 through a support plate 1, and the support plate 1 is connected with the frame plate 10 through a fixing pin 4. The grounding switch module comprises a grounding shifting plate 2, a first sliding rod 3, a clamping plate 5 and a first reset spring. The grounding poking plate 2 protrudes out of the frame plate 10 and is connected with a grounding switch. The grounding shifting plate 2 is fixed on the first sliding rod 3 and drives the first sliding rod 3 to slide left and right in the support plate 1. The first slide bar 3 is sleeved with a first reset spring, one end of the first reset spring is connected with the grounding poking plate 2, and the other end of the first reset spring is fixedly connected to the support plate 1 and used for resetting the grounding poking plate 2 and the first slide bar 3. As shown in fig. 3, the grounding switch is switched on, the grounding poking plate 2 pokes rightwards to drive the first sliding rod 3 rightwards, and the first reset spring is compressed; the grounding switch is opened, and the elastic force of the first reset spring enables the grounding poking plate 2 and the first sliding rod 3 to reset leftwards. The tail end of the first sliding rod 3 is connected with one end of the clamping plate 5 to limit the opening/closing of the cabin door.
As shown in fig. 1, the breaker switch module is fixedly connected to the middle part of the frame plate 10 through a bracket, and the bracket is connected with the frame plate 10 through a screw 6. The circuit breaker interlocking module comprises a circuit breaker deflector rod 15, a second sliding rod 8, a limiting rod 11, a circuit breaker deflector rod 16 and a thick clamping plate 14. The bottom of the second slide bar 8 is also connected with a door locking hanging bar 17. The breaker deflector rod 15 protrudes out of the frame plate 10 and is connected with a breaker switch, the breaker deflector rod 15 is fixed on the second slide rod 8 to drive the second slide rod 8 to slide up and down in the bracket, and the cabin door is adjusted to be opened/closed by the locking slide rod. The second slide bar 8 is sleeved with a second reset spring 16, the thick clamping plate 14 is fixedly connected to the top of the second reset spring 16, and the bottom of the second reset spring 16 is fixed to the support and used for resetting the circuit breaker deflector rod 15 and the second slide bar 8. As shown in fig. 2, the breaker is opened, the breaker driving lever 15 is shifted, the thick clamping plate 14 is pressed, the breaker driving lever 15 drives the second sliding rod 8 to move downwards, the door locking hanging rod 17 moves downwards, and the cable door is in the door locking position. The circuit breaker is closed, the second slide bar 8 is reset upwards through the reset action of the circuit breaker deflector rod 15, the door locking hanging rod 17 moves upwards, and the cable hatch door is in the opening position.
The limit rod 11 is arranged at the top of the second slide rod 8. The other end of the clamping plate 5 protrudes out of the frame plate 10. The clamping plate 5 is provided with a through hole, and when the limiting rod 11 is not aligned with the central axis of the through hole, the upward movement of the limiting rod 11 is blocked by the clamping plate 5, and the circuit breaker deflector rod 17 cannot be lifted. The frame plate 10 is also connected with a limiting plate 13, and the limiting rod 11 can pass through the limiting plate 13 and is used for ensuring that the limiting rod 11 can be aligned with the central shaft of the through hole when sliding up and down.
Specifically, when the breaker is opened, the second slide bar 8 moves downwards, the limiting rod 11 moves downwards simultaneously, and the cable hatch door is closed below the clamping plate 5. When the switch is grounded and closed, the grounding poking plate 2 is pushed to the right, so that the through hole of the clamping plate 5 is opposite to the upper part of the limiting rod 11, and at the moment, when the second sliding rod 8 moves upwards, the limiting rod 11 moves upwards to pass through the through hole, and the cable cabin door can be opened. When the grounding switch is not closed, the grounding poking plate 2, the first sliding plate 9 and the clamping plate 5 are reset leftwards, the through hole of the clamping plate 5 is not arranged above the limiting rod 11, and at the moment, when the second sliding rod 8 moves upwards, the limiting rod 11 is reset upwards and blocked by the clamping plate 5, and the cable cabin door cannot be opened.
The side of the bent frame plate 10 is provided with a sliding plate 9, the sliding plate 9 slides up and down on the bending surface of the frame plate 10, and the bending height limits the displacement of the up and down sliding. The slide plate 9 is provided with a baffle 12 which can block the breaker and is used for prohibiting the breaker switch from being opened. The cable hatch door is opened, the slide plate 9 and the baffle plate 12 move downwards to block the breaker opening button, and the breaker cannot perform opening operation. The cable hatch is closed, and the slide plate 9 and the baffle plate 12 move upwards to avoid the breaker opening button.
The invention has compact integral structure, meets the requirement of miniaturized interlocking, and reduces the volume of the interlocking part; the device can be applied to different direct-acting type upper disconnecting breaker switches, and is convenient to debug and assemble. ; the production process is simple, the modular structure is adopted, the assembly efficiency is greatly improved, and the production cost is reduced; the interlocking between the grounding and the circuit breaker is integrated on one hanging door lock, so that the reliability of the lower door interlocking is ensured.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (9)
1. A direct acting upper isolation circuit breaker lower door interlock comprising: the circuit breaker comprises a bent frame plate (10), a grounding switch module arranged at the top of the frame plate (10) and a breaker switch module arranged in the middle of the frame plate (10);
the circuit breaker interlocking module comprises a circuit breaker deflector rod (15), a second sliding rod (8) and a limiting rod (11), wherein the bottom of the second sliding rod is connected with a door locking hanging rod, the circuit breaker deflector rod (15) protrudes out of the frame plate (10) and is connected with a circuit breaker switch, the circuit breaker deflector rod (15) is fixed on the second sliding rod (8) to drive the second sliding rod (8) to slide up and down, and a cabin door is adjusted to be opened/closed through the door locking hanging rod;
The grounding switch module comprises a grounding shifting plate (2), a first sliding rod (3) and a clamping plate (5), wherein the grounding shifting plate (2) protrudes out of the frame plate (10) and is connected with a grounding switch, the grounding shifting plate (2) is fixed on the first sliding rod (3) to drive the first sliding rod (3) to slide left and right, the tail end of the first sliding rod (3) is connected with one end of the clamping plate (5), and the clamping plate (5) is matched with the limiting rod (11) to limit opening/closing of a cabin door;
The utility model discloses a door lock is characterized by comprising a clamping plate (5), a limiting rod (11), a frame plate (10) and a through hole, wherein the limiting rod (11) is connected with the top of a second sliding rod (8), the other end of the clamping plate (5) protrudes out of the frame plate (10), the clamping plate (5) is provided with the through hole, the clamping plate (5) is driven by a first sliding rod (3) to move, and when the limiting rod (11) is not aligned with the central shaft of the through hole, the upward movement of the limiting rod (11) is blocked by the clamping plate (5), and the door lock hanging rod cannot be lifted.
2. The direct-acting upper isolation circuit breaker lower door interlock according to claim 1, wherein the grounding switch module is fixedly connected to the top of the frame plate (10) through a support plate (1), and the first sliding rod (3) is fixedly connected to the support plate (1).
3. The direct-acting upper disconnecting circuit breaker lower door interlock according to claim 2, wherein the support plate is fixedly connected to the top of the frame plate (10) through a fixing pin (4), and the first sliding rod slides left and right in the support plate (1).
4. The direct-acting upper isolation circuit breaker lower door interlock according to claim 2, wherein a first reset spring is sleeved on the first sliding rod (3), one end of the first reset spring is connected with the grounding poking plate (2), and the other end of the first reset spring is fixedly connected to the support plate (1) and used for resetting the grounding poking plate (2).
5. The direct-acting upper isolation circuit breaker lower door interlock according to claim 1, wherein the circuit breaker switch module is fixedly connected to the middle part of the frame plate (10) through a bracket (7), and the second sliding rod (8) slides up and down in the bracket (7).
6. The direct-acting upper disconnecting circuit breaker lower door interlock according to claim 5, characterized in that the bracket (7) is fixedly connected in the middle of the frame plate (10) through a screw (6).
7. The direct-acting upper isolation circuit breaker lower door interlock according to claim 5, wherein a thick clamping plate (14) is arranged on the side face of the circuit breaker deflector rod (15), a second reset spring (16) is sleeved on the second sliding rod (8), the thick clamping plate (14) is fixedly connected to the top of the second reset spring (16), the bottom of the second reset spring (16) is fixed on the support (7), and when the circuit breaker deflector rod (15) moves upwards, the second sliding rod (8) moves upwards through the reset action of the second reset spring (16).
8. The direct-acting upper isolation circuit breaker lower door interlock according to claim 1, wherein a sliding plate (9) is arranged on the side surface of the frame plate (10), the sliding plate (9) slides up and down on the bending surface of the frame plate (10), the bending height limits the displacement of the sliding up and down, a baffle plate (12) is arranged on the sliding plate (9), and the baffle plate (12) can block the circuit breaker and is used for prohibiting the circuit breaker switch from being opened.
9. The direct-acting upper isolating breaker lower door interlock according to claim 1, further comprising a limiting plate (13) fixedly connected to the frame plate (10), wherein the limiting rod (11) passes through the limiting plate (13) and is used for ensuring that the limiting rod (11) can be aligned with the central axis of the through hole when sliding up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111214697.9A CN113936940B (en) | 2021-10-19 | 2021-10-19 | Lower door interlock of direct-acting upper isolation breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111214697.9A CN113936940B (en) | 2021-10-19 | 2021-10-19 | Lower door interlock of direct-acting upper isolation breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113936940A CN113936940A (en) | 2022-01-14 |
| CN113936940B true CN113936940B (en) | 2024-04-26 |
Family
ID=79280180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111214697.9A Active CN113936940B (en) | 2021-10-19 | 2021-10-19 | Lower door interlock of direct-acting upper isolation breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113936940B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010115002A (en) * | 2008-11-06 | 2010-05-20 | Toshiba Corp | Interlock device of metal-enclosed switch gear |
| JP2010251160A (en) * | 2009-04-16 | 2010-11-04 | Toshiba Corp | Interlocking device of switch |
| EP2339603A2 (en) * | 2009-12-23 | 2011-06-29 | LS Industrial Systems Co., Ltd | Interlock apparatus of ground switch for vacuum circuit breaker |
| KR101158653B1 (en) * | 2011-03-10 | 2012-06-26 | 엘에스산전 주식회사 | Interlock device of earth switch |
| CN102751118A (en) * | 2012-07-23 | 2012-10-24 | 江苏大全长江电器股份有限公司 | Lower door interlocking mechanism for switch cabinet |
| CN203312078U (en) * | 2013-07-05 | 2013-11-27 | 北京合纵实科电力科技有限公司 | Lower door interlocking device of circuit breaker cabinet with isolation |
| CN203690160U (en) * | 2013-12-31 | 2014-07-02 | 陈刚 | Interlocking mechanism of semi-enclosed looped network circuit breaker cabinet |
| CN206135283U (en) * | 2016-10-27 | 2017-04-26 | 温州兴机电器有限公司 | High tension switchgear's no. 5 prevents interlocking device |
| CN206401210U (en) * | 2016-12-26 | 2017-08-11 | 上海中亚电气有限公司 | A kind of cable chamber door and the mechanical interlocks of line-to-ground |
| CN206928787U (en) * | 2017-03-31 | 2018-01-26 | 泰豪科技(深圳)电力技术有限公司 | Lower door interlock and the ring main unit using the interlock |
| KR20190041335A (en) * | 2017-10-12 | 2019-04-22 | 엘에스산전 주식회사 | Releasing Device of Door Interlock of Circuit Breaker |
| CN210608282U (en) * | 2019-11-14 | 2020-05-22 | 江苏大烨智能电气股份有限公司 | Lower door interlocking mechanism of SF6 combined electrical apparatus looped netowrk cabinet |
| CN111816494A (en) * | 2020-07-29 | 2020-10-23 | 上海电气集团股份有限公司 | Double-operation-shaft three-station mechanism of inflatable cabinet and interlocking device thereof |
| CN112366103A (en) * | 2020-10-23 | 2021-02-12 | 江苏南瑞帕威尔电气有限公司 | Lower door interlocking device of switch cabinet |
| CN112509836A (en) * | 2020-12-01 | 2021-03-16 | 上海平高天灵开关有限公司 | Linkage type interlocking structure for switch cabinet |
| CN212725072U (en) * | 2020-08-26 | 2021-03-16 | 江苏大烨智能电气股份有限公司 | Interlocking device of isolation circuit breaker cabinet on SF6 full-insulation ring main unit |
| CN112700994A (en) * | 2019-10-23 | 2021-04-23 | 北京合纵科技股份有限公司 | Five-prevention mechanical interlocking structure of upper isolating switch cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9735555B2 (en) * | 2015-08-27 | 2017-08-15 | Eaton Corporation | Mechanical door interlock device for protecting power electrical switching apparatus and users |
-
2021
- 2021-10-19 CN CN202111214697.9A patent/CN113936940B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010115002A (en) * | 2008-11-06 | 2010-05-20 | Toshiba Corp | Interlock device of metal-enclosed switch gear |
| JP2010251160A (en) * | 2009-04-16 | 2010-11-04 | Toshiba Corp | Interlocking device of switch |
| EP2339603A2 (en) * | 2009-12-23 | 2011-06-29 | LS Industrial Systems Co., Ltd | Interlock apparatus of ground switch for vacuum circuit breaker |
| KR101158653B1 (en) * | 2011-03-10 | 2012-06-26 | 엘에스산전 주식회사 | Interlock device of earth switch |
| CN102751118A (en) * | 2012-07-23 | 2012-10-24 | 江苏大全长江电器股份有限公司 | Lower door interlocking mechanism for switch cabinet |
| CN203312078U (en) * | 2013-07-05 | 2013-11-27 | 北京合纵实科电力科技有限公司 | Lower door interlocking device of circuit breaker cabinet with isolation |
| CN203690160U (en) * | 2013-12-31 | 2014-07-02 | 陈刚 | Interlocking mechanism of semi-enclosed looped network circuit breaker cabinet |
| CN206135283U (en) * | 2016-10-27 | 2017-04-26 | 温州兴机电器有限公司 | High tension switchgear's no. 5 prevents interlocking device |
| CN206401210U (en) * | 2016-12-26 | 2017-08-11 | 上海中亚电气有限公司 | A kind of cable chamber door and the mechanical interlocks of line-to-ground |
| CN206928787U (en) * | 2017-03-31 | 2018-01-26 | 泰豪科技(深圳)电力技术有限公司 | Lower door interlock and the ring main unit using the interlock |
| KR20190041335A (en) * | 2017-10-12 | 2019-04-22 | 엘에스산전 주식회사 | Releasing Device of Door Interlock of Circuit Breaker |
| CN112700994A (en) * | 2019-10-23 | 2021-04-23 | 北京合纵科技股份有限公司 | Five-prevention mechanical interlocking structure of upper isolating switch cabinet |
| CN210608282U (en) * | 2019-11-14 | 2020-05-22 | 江苏大烨智能电气股份有限公司 | Lower door interlocking mechanism of SF6 combined electrical apparatus looped netowrk cabinet |
| CN111816494A (en) * | 2020-07-29 | 2020-10-23 | 上海电气集团股份有限公司 | Double-operation-shaft three-station mechanism of inflatable cabinet and interlocking device thereof |
| CN212725072U (en) * | 2020-08-26 | 2021-03-16 | 江苏大烨智能电气股份有限公司 | Interlocking device of isolation circuit breaker cabinet on SF6 full-insulation ring main unit |
| CN112366103A (en) * | 2020-10-23 | 2021-02-12 | 江苏南瑞帕威尔电气有限公司 | Lower door interlocking device of switch cabinet |
| CN112509836A (en) * | 2020-12-01 | 2021-03-16 | 上海平高天灵开关有限公司 | Linkage type interlocking structure for switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113936940A (en) | 2022-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113936940B (en) | Lower door interlock of direct-acting upper isolation breaker | |
| CA2042850A1 (en) | Auxiliary operator for circuit interrupting apparatus | |
| WO2017167085A1 (en) | Internal feedback apparatus for control and protection of electrical switching device | |
| CN212725072U (en) | Interlocking device of isolation circuit breaker cabinet on SF6 full-insulation ring main unit | |
| CN2819426Y (en) | Hanging lock device of electric operating mechanism | |
| CN112563084A (en) | Locking device of circuit breaker | |
| CN201311897Y (en) | Isolating switch | |
| CN208673932U (en) | A kind of vacuum loading switch cabinet cabinet door interlock | |
| CN213661044U (en) | Switch cabinet and interlocking device thereof | |
| CN201045719Y (en) | Manual and electric integrated push button | |
| EP1094480A3 (en) | Control apparatus | |
| CN209000852U (en) | A kind of control and protective switching device | |
| CN108493067B (en) | Circuit breaker system and handcart type circuit breaker | |
| CN214477080U (en) | Forced separation type microswitch | |
| CN216773096U (en) | Padlock of electric operating mechanism and interlocking structure of manual lock | |
| CN210110671U (en) | Circuit breaker position state signal output device | |
| CN201515574U (en) | Key height adjusting structure of slide electronic product | |
| CN115719695B (en) | Mechanical interlocking device for circuit breaker | |
| CN215869050U (en) | Low-voltage circuit breaker and micromotion module thereof | |
| CN213988762U (en) | Circuit breaker state indicating structure | |
| CN214226848U (en) | Locking device of circuit breaker | |
| CN213402210U (en) | Valve device for low-voltage switch cabinet drawer | |
| CN112234454B (en) | Electric control cabinet | |
| CN109192627A (en) | A kind of control and protective switching device | |
| CN218161320U (en) | Valve mechanism of high-voltage power distribution cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |