CN103050900A - Mechanical interlocking device of drawer-type switch cabinet and drawer-type switch cabinet - Google Patents
Mechanical interlocking device of drawer-type switch cabinet and drawer-type switch cabinet Download PDFInfo
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- CN103050900A CN103050900A CN201110312565XA CN201110312565A CN103050900A CN 103050900 A CN103050900 A CN 103050900A CN 201110312565X A CN201110312565X A CN 201110312565XA CN 201110312565 A CN201110312565 A CN 201110312565A CN 103050900 A CN103050900 A CN 103050900A
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- chassis vehicle
- chassis
- plate
- driving shaft
- mechanical interlocks
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- 238000000034 method Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 239000011800 void material Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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Abstract
The invention provides a mechanical interlocking device of a drawer-type switch cabinet, and the mechanical interlocking device comprises a chassis vehicle lock plate, a chassis vehicle lock, an interlock bolt and an interlock plate. The invention also provides the drawer-type switch cabinet which comprises a chassis framework front plate, a switch cabinet door, a chassis vehicle driving shaft, a chassis vehicle driving plate and the mechanical interlocking device. According to the mechanical interlocking device of the drawer-type switch cabinet and the drawer-type switch cabinet, a circuit breaker can be moved by rocking a chassis only when unlocking conditions are met, and the mechanical interlocking device can be locked again only after the circuit breaker returns to a testing position, so that ineffective action or fault losses caused by error operation are effectively prevented during use.
Description
Technical field
The present invention relates to the mechanical interlocks of draw out switchgear cabinet, relate in particular to a kind of mechanical interlocks that the withdrawable switch cubicle of primary cut-out is housed.The invention still further relates to the draw out switchgear cabinet that adopts this mechanical interlocks.
Background technology
The draw out switchgear cabinet comprises a chassis vehicle, and chassis vehicle is driven by the chassis vehicle driving shaft, and rotating chassis car driving shaft drives the chassis vehicle drive plate that is installed on the chassis vehicle and moves, and makes the circuit breaker that places on the chassis vehicle mobile between test position and service position.Mechanical interlocks is directly installed on the circuit breaker frame housing usually.When need were opened the high-pressure door of circuit breaker, if do not know working condition and the position of circuit breaker, operator's misoperation may cause exercise void or breakdown loss, and produced potential safety hazard.
Summary of the invention
The mechanical interlocks that the purpose of this invention is to provide a kind of draw out switchgear cabinet, this mechanical interlocks only when unlocking condition satisfies, just allow to shake into or shake out chassis vehicle, make circuit breaker mobile between test position and service position.Simultaneously, also only when circuit breaker is got back to test position, mechanical interlocks is locking again, thereby effectively avoids the exercise void or the breakdown loss that cause because of misoperation in the use procedure, and mechanical interlocks is simple in structure, is easy to installation and maintenance.
The mechanical interlocks of this draw out switchgear cabinet comprises a chassis vehicle jam plate on the chassis vehicle driving shaft that is arranged on switch cubicle.Mechanical interlocks also comprises a chassis, an interlocking bolt and an interlock plate.Interlocking bolt is fixed on the dead bolt of chassis, offers a locked groove on the interlock plate.When chassis is in lockup state, dead bolt locks in this locked groove and described interlocking bolt locks described chassis vehicle jam plate, and when chassis was in released state, interlocking bolt entered in the locked groove and discharges described chassis vehicle jam plate, and interlock plate can be moved with respect to interlocking bolt.
In another schematic execution mode of the mechanical interlocks of draw out switchgear cabinet, mechanical interlocks also comprises at least one driving shaft locking plate and at least one turning arm.Described driving shaft locking plate can lock or discharge described chassis vehicle jam plate.One end of described turning arm can be driven by the cabinet door of described switch cubicle, and the other end of described turning arm is resisted against described driving shaft locking plate, and described turning arm can promote described driving shaft locking plate to the direction motion that discharges described chassis vehicle jam plate.Like this, mechanical interlocks only when cabinet door is closed and satisfy unlocking condition, just allows to shake into or shake out chassis vehicle, makes circuit breaker mobile between test position and service position.
In the another kind of schematically execution mode of the mechanical interlocks of draw out switchgear cabinet, mechanical interlocks comprises a pair of turning arm and a pair of driving shaft locking plate, and the driving shaft locking plate arranges along chassis vehicle driving shaft radial symmetric.
In another schematic execution mode of the mechanical interlocks of draw out switchgear cabinet, mechanical interlocks comprises that also a chassis vehicle drives rod member, the end that chassis vehicle drives rod member links to each other with interlock plate, and the other end can link to each other with the chassis vehicle drive plate of switch cubicle.
In another schematic execution mode of the mechanical interlocks of draw out switchgear cabinet, mechanical interlocks also comprises a lock box, and this lock box has a pair of interlocking board slot, and interlock plate can wear and be installed in the interlocking board slot.
Another object of the present invention provides a kind of draw out switchgear cabinet, comprise a carrier frame header board, a cabinet door, a chassis vehicle driving shaft, a chassis vehicle drive plate and a mechanical interlocks of the present invention, wherein chassis vehicle jam plate and chassis are fixed on the carrier frame header board, the chassis vehicle driving shaft is installed on the chassis vehicle jam plate, and an end of chassis vehicle driving rod member links to each other with the chassis vehicle drive plate.
Adopt mechanical interlocks of the present invention and draw out switchgear cabinet, only can guarantee when the mechanical interlocks release, just to shake into or shake out chassis vehicle, make circuit breaker mobile between test position and service position; Simultaneously, also only when circuit breaker is got back to test position, mechanical interlocks is locking again, thereby has effectively avoided the exercise void or the breakdown loss that cause because of misoperation in the use procedure.In addition, because mechanical interlocks is installed on the carrier frame header board, so mechanical interlocks and draw out switchgear cabinet is simple in structure, is easy to installation and maintenance.
Hereinafter will be in clear and definite understandable mode, the accompanying drawings preferred embodiment is further described above-mentioned characteristic, technical characterictic, advantage and the implementation thereof of the mechanical interlocks of draw out switchgear cabinet.
Description of drawings
Fig. 1 is the perspective exploded view of the mechanical interlocks structure of draw out switchgear cabinet of the present invention.
Fig. 2 shows the course of work of mechanical interlocks, the state when wherein Fig. 2 (a) expression cabinet door is not closed, the state when Fig. 2 (b) expression cabinet door is closed.
Fig. 3 (a) and Fig. 3 (b) have shown respectively chassis, interlocking bolt and the interlock plate position relationship at lockup state and released state.
Fig. 4 is in order to the position of display switch cabinet procedure lock assembly under different conditions, when wherein solid line represents the chassis locking, chassis vehicle drives the position of rod member and interlock plate, and dotted line represents that cabinet door is closed, when chassis release and circuit breaker shake to the service position, chassis vehicle drives the position of rod member and interlock plate.
Fig. 5 is the schematic diagram after the mechanical interlocks combination shown in Figure 1, and has the draw out switchgear cabinet of this mechanical interlocks in order to explanation.
Label declaration
10 cabinet door lock assemblies
12 turning arms
14 driving shaft locking plates
16 chassis vehicle jam plates
162 locking bars
20 procedure lock assemblies
22 chassis
222 dead bolts
224 keys
23 lock boxes
236 interlocking board slots
24 interlocking bolts
26 interlock plates
262 locked grooves
28 chassis vehicles drive rod member
282 first bars
284 second bars
285 fixing holes
286 connecting holes
30 carrier frame header boards
50 chassis vehicle driving shafts
52 propeller shaft sleeves
60 chassis vehicle drive plates
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention, identical label represents identical or structural similarity but the identical parts of function in each figure.
For making drawing succinct, only schematically shown part related to the present invention among each figure, they do not represent it as the practical structures of product.In addition, so that drawing succinctly is convenient to understand, the parts that have same structure or function in some figure have only schematically illustrated one of them, or have only marked one of them.
Independent bar of " rod member " expression in this article, or the leverage that is connected by a plurality of bars.In this article directly " connection ", " fixing ", " installation " of " connection ", " fixing ", " installation " expression, or via the third party's " connection ", " fixing ", " installation ".
In the mechanical interlocks of draw out switchgear cabinet shown in Figure 1, mechanical interlocks comprises chassis vehicle jam plate 16, a chassis 22, an interlocking bolt 24 and the interlock plate 26 on the chassis vehicle driving shaft 50 that is arranged on switch cubicle, wherein chassis 22, interlocking bolt 24 and interlock plate 26 configuration program lock sets 20.In procedure lock assembly 20, the dead bolt 222 of chassis 22 is fixedly connected with an end of interlocking bolt 24, offers a locked groove 262 on the interlock plate 26, and interlocking bolt 24 can be located in the locked groove 262.One end of interlock plate 26 can further link to each other with an end of chassis vehicle driving rod member 28, and the other end of chassis vehicle driving rod member 28 can link to each other with chassis vehicle drive plate 60.
Fig. 3 is in order to chassis 22, interlocking bolt 24 and the interlock plate 26 of the read-me lock set position relationship at lockup state and released state, what wherein (a) among Fig. 3 showed is lockup state, when chassis 22 is in lockup state, dead bolt 222 stretches out, this moment, dead bolt 222 lucky lockings were in locked groove 262, interlock plate 26 can't move, and interlocking bolt 24 is inserted in and locks chassis vehicle jam plate 16 between chassis vehicle jam plate 16 and the carrier frame header board 30 (referring to Fig. 5), makes it can't axially moving towards carrier frame header board 30 along chassis vehicle driving shaft 50.Propeller shaft sleeve 52 (referring to Fig. 5) is fixed on the chassis vehicle jam plate 16, so can't move to expose equally the operating side of the chassis vehicle driving shaft 50 that is covered by it.The chassis vehicle that is connected to like this interlock plate 26 1 ends drives rod member 28 (referring to Fig. 1) and can't move, and chassis vehicle driving shaft 50 also can't rotate simultaneously.Shown in (b) among Fig. 3, when key 224 placed released state with chassis 22, dead bolt 222 was retracted, and the interlocking bolt 24 that link to each other with dead bolt 222 this moment places locked groove 262, and interlock plate 26 can move along the direction shown in the arrow.At this moment, chassis vehicle jam plate 16 can be along axially the moving towards carrier frame header board 30 of chassis vehicle driving shaft 50, thereby expose the operating side of the chassis vehicle driving shaft 50 that driven axle sleeve 52 covers.Can shake chassis vehicle driving shaft 50 and make circuit breaker move to service position (or move to test position from the service position) from test position by the operating grip (not shown) is connected with this operating side.At this moment, the chassis vehicle that is connected with chassis vehicle drive plate 60 drives rod member 28 promotion interlock plates 26 and moves.Like this, when interlock plate 26 was in the off-position, dead bolt 222 can't stretch out, and namely chassis 22 can't locking.Chassis vehicle driving shaft 50 and chassis vehicle drive plate 60 be connected and movement relation can adopt any existing structure, so repeat no more.In exemplary embodiment shown in Figure 1, interlock plate 26 is located in a pair of interlocking board slot 236 of lock box 23 (Fig. 1 has only shown one of them).But interlock plate 26 also can adopt other mounting means, as long as interlock plate 26 can move under chassis 22 released states.
In execution mode shown in Figure 1, chassis vehicle drives rod member 28 and comprises the first bar 282 and the second bar 284, one end of interlock plate 26 is connected with an end of the first bar 282, the other end of the first bar 282 is connected with an end of the second bar 284, the other end of the second bar 284 is connected to chassis vehicle drive plate 60 by connecting hole 286, wherein also be provided with a fixing hole 285 on the second bar 284, after fixing hole 285 was fixed, the second bar 284 can rotate around fixing hole 285.
A pair of turning arm 12 and a pair of driving shaft locking plate 14 consists of cabinet door lock assemblies 10, but driving shaft locking plate 14 lockings or discharge chassis vehicle jam plate 16 wherein.See also Fig. 2, wherein (a) among Fig. 2 shown the state of cabinet door lock assembly 10 when the cabinet door (not shown) is opened.At this moment, the groove of driving shaft locking plate 14 (referring to Fig. 1) is stuck between chassis vehicle jam plate 16 and the carrier frame header board 30 (referring to Fig. 5), and making chassis vehicle jam plate 16 reach fixing with it propeller shaft sleeve 52 can't axially moving towards carrier frame header board 30 along chassis vehicle driving shaft 50.Turning arm 12 is corresponding with driving shaft locking plate 14, and an end of turning arm 12 is free end, can be by the control of cabinet door (not shown), and the other end is resisted against on the driving shaft locking plate 14, thereby contacts with driving shaft locking plate 14.During closing switch cabinet door, cabinet door applies the power shown in the direction of arrow among the figure at the free end of turning arm 12, shown in (b) among Fig. 2, turning arm 12 rotations this moment, turning arm 12 promotes driving shaft locking plate 14 with driving shaft locking plate 14 contacted ends and moves, and driving shaft locking plate 14 discharges chassis vehicle jam plate 16.At this moment, chassis vehicle jam plate 16 can be along axially the moving towards carrier frame header board 30 of chassis vehicle driving shaft 50, thereby expose the operating side of the chassis vehicle driving shaft 50 that driven axle sleeve 52 covers.Can shake chassis vehicle driving shaft 50 and make circuit breaker move to service position (or move to test position from the service position) from test position by the operating grip (not shown) is connected with this operating side.The possibility that the operator shakes chassis vehicle driving shaft 50 when adopting this structure can avoid cabinet door not close.Wherein, cabinet door can use any one existing structure and method with being connected of switch cubicle.The Drive Structure that it will be understood by those skilled in the art that cabinet door can be corresponding projection or similar structures, and when cabinet door was closed, described projection or similar structures were positioned at and the contacted position of the free end of turning arm 12.
Although in exemplary embodiment shown in Figure 1, cabinet door lock assembly 10 has two turning arms 12 and two driving shaft locking plates 14, and along with the direction setting of chassis vehicle driving shaft 50 radial symmetric, in the hope of reaching better locking effect.But a turning arm 12 and a driving shaft locking plate 14 correspondingly only are set, also can locking chassis vehicle jam plate 16 and chassis vehicle driving shaft 50.
Fig. 4 is in order to the position of display switch cabinet procedure lock assembly under different conditions, wherein solid line be depicted as that cabinet door is not closed, during the chassis locking, chassis vehicle drives the position of rod member and interlock plate.If the operator opens chassis 22 with key 224, can shake chassis vehicle driving shaft 50, this moment, chassis vehicle drive plate 60 drive circuit breaker (not shown) moved along direction shown in the arrow B, and circuit breaker is shifted to the service position from test position.As shown in phantom in Figure 4, along with the motion of chassis vehicle drive plate 60, the second bar 284 rotates around fixing hole 285 positions, and the first bar 282 also rotates thereupon, and promotes interlock plate 26 and move along the direction shown in the arrow A, until circuit breaker moves to the service position.Although disclosed a kind of schematic structure that chassis vehicle drives rod member 28 in Fig. 1 and Fig. 4, interlock plate 26 also was feasible along the move structure of (or in contrast) of arrow A when other realized that chassis vehicle drive plate 60 moves along arrow B.
In this mechanical interlocks, only again get back to the test position shown in Fig. 4 solid line at circuit breaker, chassis 22 is locking again, and when interlock plate 26 is in other position, because stopping of interlock plate 26, the dead bolt 222 of chassis 22 can't normally stretch out, could locking chassis 22 thereby guaranteed to only have circuit breaker to be returned to test position.Fig. 5 has the schematic structure of the draw out switchgear cabinet of above-mentioned mechanical interlocks in order to demonstration, and it has only shown part related to the present invention, is not the complete structure of draw out switchgear cabinet.As shown in Figure 5, the draw out switchgear cabinet comprises carrier frame header board 30, cabinet door (not drawing among the figure), chassis vehicle driving shaft 50, chassis vehicle drive plate 60, cabinet door lock assembly and procedure lock assembly.Chassis vehicle jam plate 16 and chassis 22 are fixed on the carrier frame header board 30, and chassis vehicle driving shaft 50 is installed on the chassis vehicle jam plate 16, and the end that chassis vehicle drives rod member 28 links to each other with chassis vehicle drive plate 60.Propeller shaft sleeve 52 is fixed on the chassis vehicle jam plate 16, and for the operating side of covering chassis vehicle driving shaft 50.When mechanical interlocks is in released state, can this operating side be exposed by the update handle.Simultaneously, this operating grip connects this operating side, and then can shake into or shake out chassis vehicle by shaking operating grip, makes circuit breaker move to service position (or move to test position from the service position) from test position.When operating grip did not insert, covered the operating side of chassis vehicle driving shaft 50 all the time driven axle sleeve 52, and this realizes by the spring that for example is resisted against on the chassis vehicle jam plate 16.
It will be understood by those skilled in the art that cabinet door lock assembly 10 of the present invention and procedure lock assembly 20 both can use separately also can use simultaneously.When the Mechanically programm's lock set 10 that adopts simultaneously said structure and procedure lock assembly 20 and draw out switchgear cabinet, can guarantee that mechanical interlocks only closes and during the procedure lock release at cabinet door, just can shake into or shake out chassis vehicle, make circuit breaker mobile between test position and service position; Simultaneously, also only when circuit breaker is got back to test position, procedure lock is locking again, thereby effectively avoids the exercise void or the breakdown loss that cause because of misoperation in the use procedure.
Simultaneously, lock for door of switch cabinet and chassis all are installed on the carrier frame header board, they can be along with the movement of circuit breaker the variation of occurrence positions, so that only when cabinet door is in closed condition, the in running order chassis of ability operating breaker, and then avoided opening at this moment the security incident that cabinet door may cause.In the present invention, so-called " header board " refers to that this plate is before the extraction direction of switch cubicle is positioned at chassis vehicle.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the execution mode that is described in this article " schematically " should be interpreted as a kind of preferred or have more the technical scheme of advantage.
Above listed a series of detailed description only is specifying for feasibility embodiment of the present invention; they are not to limit protection scope of the present invention, allly do not break away from equivalent embodiment or the change that skill spirit of the present invention does and all should be included within protection scope of the present invention.
Claims (6)
1. the mechanical interlocks of draw out switchgear cabinet comprises a chassis vehicle jam plate (16), and this chassis vehicle jam plate is arranged on the chassis vehicle driving shaft (50) of described switch cubicle, it is characterized in that:
Described mechanical interlocks also comprises:
A chassis (22),
Interlocking bolt (24) on dead bolt (222) that is fixed on described chassis, and
An interlock plate (26), offer a locked groove (262) on this interlock plate, when described chassis is in lockup state, described dead bolt locks in this locked groove and described interlocking bolt locks described chassis vehicle jam plate, and when described chassis is in released state, described interlocking bolt enters in the described locked groove and discharges described chassis vehicle jam plate, and described interlock plate can be moved with respect to described interlocking bolt.
2. mechanical interlocks as claimed in claim 1, wherein said mechanical interlocks also comprises:
At least one driving shaft locking plate (14), described driving shaft locking plate can lock or discharge described chassis vehicle jam plate, and
At least one turning arm (12), one end of described turning arm can be driven by the cabinet door of described switch cubicle, the other end of described turning arm is resisted against described driving shaft locking plate, and described turning arm can promote described driving shaft locking plate to the direction motion that discharges described chassis vehicle jam plate.
3. mechanical interlocks as claimed in claim 2, wherein said mechanical interlocks comprises a pair of described turning arm (12) and a pair of described driving shaft locking plate (14), described driving shaft locking plate arranges along described chassis vehicle driving shaft radial symmetric.
4. such as each described mechanical interlocks in the claims 1 to 3, wherein said mechanical interlocks comprises that also a chassis vehicle drives rod member (28), the one end links to each other with described interlock plate, and the other end can link to each other with the chassis vehicle drive plate (60) of described switch cubicle.
5. mechanical interlocks as claimed in claim 1, wherein said mechanical interlocks also comprises a lock box (23), and this lock box has a pair of interlocking board slot (236), and described interlock plate can wear and be installed in the described interlocking board slot.
6. a draw out switchgear cabinet comprises a carrier frame header board (30), cabinet door, a chassis vehicle driving shaft (50), a chassis vehicle drive plate (60) and a mechanical interlocks, it is characterized in that:
Described mechanical interlocks is the described mechanical interlocks of any one in the claim 1 to 5, wherein chassis vehicle jam plate (16) and chassis (22) are fixed on the described carrier frame header board, and described chassis vehicle driving shaft is installed on the described chassis vehicle jam plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110312565.XA CN103050900B (en) | 2011-10-14 | 2011-10-14 | The mechanical interlocks of draw out switchgear cabinet and draw out switchgear cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110312565.XA CN103050900B (en) | 2011-10-14 | 2011-10-14 | The mechanical interlocks of draw out switchgear cabinet and draw out switchgear cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103050900A true CN103050900A (en) | 2013-04-17 |
| CN103050900B CN103050900B (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110312565.XA Active CN103050900B (en) | 2011-10-14 | 2011-10-14 | The mechanical interlocks of draw out switchgear cabinet and draw out switchgear cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN103050900B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904577A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Interlocking mechanism and vacuum power distribution unit including same |
| CN105703232A (en) * | 2016-04-26 | 2016-06-22 | 乐清致轩电气有限公司 | Circuit breaker interlocking mechanism |
| CN111799689A (en) * | 2020-07-29 | 2020-10-20 | 青岛鼎信工业安全设备有限公司 | Inside maintenance safety interlock system of human body entering equipment completely |
| CN111834142A (en) * | 2020-08-06 | 2020-10-27 | 伊顿电力设备有限公司 | Interlocking device for switch cabinet and switch cabinet |
| CN116154664A (en) * | 2023-04-18 | 2023-05-23 | 江苏国控电力设备有限公司 | Mechanical interlocking device of draw-out type switch cabinet and draw-out type switch cabinet |
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| EP0226532A2 (en) * | 1985-12-20 | 1987-06-24 | Siemens Aktiengesellschaft | Electrical switching cubicle with a racking drive for a movable switching apparatus |
| US6545234B1 (en) * | 2001-12-18 | 2003-04-08 | Abb Technology | Circuit breaker with mechanical interlock |
| CN101188348A (en) * | 2006-11-24 | 2008-05-28 | 三菱电机株式会社 | Stretching type breaker and stretching handle for the same |
| CN101764370A (en) * | 2010-01-18 | 2010-06-30 | 无锡新宏泰电器科技股份有限公司 | Unlocking mechanism of draw-out circuit breaker |
| CN201608453U (en) * | 2010-01-18 | 2010-10-13 | 无锡新宏泰电器科技股份有限公司 | Unlocking mechanism of withdrawable breaker |
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2011
- 2011-10-14 CN CN201110312565.XA patent/CN103050900B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0226532A2 (en) * | 1985-12-20 | 1987-06-24 | Siemens Aktiengesellschaft | Electrical switching cubicle with a racking drive for a movable switching apparatus |
| US6545234B1 (en) * | 2001-12-18 | 2003-04-08 | Abb Technology | Circuit breaker with mechanical interlock |
| CN101188348A (en) * | 2006-11-24 | 2008-05-28 | 三菱电机株式会社 | Stretching type breaker and stretching handle for the same |
| CN101764370A (en) * | 2010-01-18 | 2010-06-30 | 无锡新宏泰电器科技股份有限公司 | Unlocking mechanism of draw-out circuit breaker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904577A (en) * | 2013-08-23 | 2014-07-02 | 华荣科技股份有限公司 | Interlocking mechanism and vacuum power distribution unit including same |
| CN103904577B (en) * | 2013-08-23 | 2016-02-24 | 华荣科技股份有限公司 | Interlocking device and the vacuum distribution equipment comprising it |
| CN105703232A (en) * | 2016-04-26 | 2016-06-22 | 乐清致轩电气有限公司 | Circuit breaker interlocking mechanism |
| CN111799689A (en) * | 2020-07-29 | 2020-10-20 | 青岛鼎信工业安全设备有限公司 | Inside maintenance safety interlock system of human body entering equipment completely |
| CN111799689B (en) * | 2020-07-29 | 2023-07-07 | 青岛鼎信工业安全设备有限公司 | Maintenance safety interlocking method for human body completely entering equipment |
| CN111834142A (en) * | 2020-08-06 | 2020-10-27 | 伊顿电力设备有限公司 | Interlocking device for switch cabinet and switch cabinet |
| CN111834142B (en) * | 2020-08-06 | 2022-07-19 | 伊顿电力设备有限公司 | Interlocking device for switch cabinet and switch cabinet |
| CN116154664A (en) * | 2023-04-18 | 2023-05-23 | 江苏国控电力设备有限公司 | Mechanical interlocking device of draw-out type switch cabinet and draw-out type switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103050900B (en) | 2015-09-09 |
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