CN103236361A

CN103236361A - Interlocking device

Info

Publication number: CN103236361A
Application number: CN2013101053567A
Authority: CN
Inventors: 李鹏飞
Original assignee: SHANGHAI THEHAO ELECTRIC POWER TECHNOLOGY Co Ltd
Current assignee: SHANGHAI THEHAO ELECTRIC POWER TECHNOLOGY Co.,Ltd.
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-07
Anticipated expiration: 2033-03-28
Also published as: CN103236361B

Abstract

The invention provides an interlocking device comprising at least two sets of power-distributing cabinets. Each set of the power-distributing cabinet comprises an isolating cabinet and circuit breaker cabinets electrically connected with the isolating cabinet. One linkage lock sharing one first key is included in each of the circuit breaker cabinets, and the first key of each linkage lock is only allowed to be pulled out or inserted on locking conditions. By the arrangement of the linkage locks sharing the first key, the first key of each linkage lock is only allowed to be pulled out or inserted on the locking conditions, interlocking among different cabinet bodies is realized, and damages of electric equipment caused by being supplied with power simultaneously by the power-distributing cabinets are avoided.

Description

Interlocking device

Technical field

The present invention relates to the distribution field, particularly a kind of interlocking device.

Background technology

The exploitation of electric energy and application have greatly promoted the development of human civilization.Productive life electricity consumption from the high-tension electricity in power plant to huge numbers of families and factory, transmission system and distribution system play an important role.Switch cubicle, for example, in line maintenance and the power delivery, plays an important role in distribution management as the distribution instrument of key.

In the distribution field, existing KYN28A-12 intermediate switchgear cabinet, XGN37-12 switch cubicle and XGN2-12 switch cubicle all can't be realized the mechanical interlocking between the different cabinets.

Summary of the invention

The technical problem to be solved in the present invention is the defective that does not have interlocking device between different cabinets in the prior art in order to overcome, and a kind of interlocking device that is applied between different cabinets is provided.

The present invention solves above-mentioned technical problem by following technical proposals:

A kind of interlocking device, it includes at least two group power distribution cabinets, each group power distribution cabinet comprises that one isolates cabinet and a breaker cabinet that is electrically connected with this isolation cabinet, its characteristics are, those breaker cabinets include a blocking lock, those blocking locks share one piece of first key, and each blocking lock only allows this first key to extract or insert under locking states.It is pointed out that " permission " among the application refers to cancel the constraint to object, make it have the movable degree of freedom.

Preferably, each isolates the isolation lock that cabinet includes an isolating switch and this isolating switch break-make of control, each breaker cabinet includes the lock for circuit breaker of a circuit breaker and this circuit breaker break-make of control, in each group power distribution cabinet, this lock for circuit breaker and this are isolated lock and are shared one piece of second key, this lock for circuit breaker only allows this second key to extract or insert when this circuit breaker disconnects, and this isolation lock only allows this second key to extract or insert when this isolating switch is communicated with.

Preferably, this interlocking device comprises two groups of power distribution cabinets.

Preferably, this isolation lock comprises that a top board and has the jam plate of second lockhole, this top board is fixed on the driving shaft of this isolating switch, only when this isolating switch is communicated with, this driving shaft drives this top board rotation, and then cancel and pulled in the top of this jam plate, allow second key in this second lockhole after this jam plate rotates an angle, to extract or insert.

Preferably, each blocking lock comprises that an opening button, a switch knob, a torsion spring plate, a push rod and have the lock plate of first lockhole, this opening button this push rod that links breaks away from the pin-and-hole of this lock plate, and then allow this first key to drive this lock plate motion, so that this first lockhole is extracted or inserted to this first key.

Preferably, when this first key was extracted this first lockhole, this push rod supported under the pressure of on this lock plate.

Preferably, each blocking lock also comprises a spring, and this torsion spring plate and this spring are used for driving this push rod when this push rod is aimed at this pin-and-hole and insert this pin-and-hole.

Preferably, this circuit breaker comprises a sensitive switch, and this opening button is also supported the mode of compeling this torsion spring plate by this push rod of interlock, touches the electric switch-on loop that this sensitive switch cuts off this circuit breaker.

Positive progressive effect of the present invention is: by those blocking locks are set, and shared one piece of first key, each blocking lock only allows this first key to extract or insert under locking states, this interlocking device has realized the interlocking between different cabinets, power supply when having avoided many groups power distribution cabinet and cause power consumption equipment to damage.

Description of drawings

Fig. 1 is the structural representation of the interlocking device of preferred embodiment of the present invention.

Fig. 2 is the partial schematic diagram of the interlocking device among Fig. 1.

Fig. 3 is first state diagram of the isolation lock of the interlocking device among Fig. 1.

Fig. 4 is second state diagram of the isolation lock of the interlocking device among Fig. 1.

Fig. 5 is the third state figure of the isolation lock of the interlocking device among Fig. 1.

Fig. 6 is the front view of first state of the blocking lock of the interlocking device among Fig. 1.

Fig. 7 is the front view of second state of the blocking lock of the interlocking device among Fig. 1.

Fig. 8 is the left view of first state of the blocking lock of the interlocking device among Fig. 1.

Fig. 9 is the left view of second state of the blocking lock of the interlocking device among Fig. 1.

Description of reference numerals:

First isolates cabinet: 1 second isolates cabinet: 2

First breaker cabinet: 3 second breaker cabinets: 4

Driving shaft: 5 sensitive switches: 6

Sub-switching operation hole: 7 handle hole baffle plates: 8

First isolates lock: 10 second isolate lock: 20

First blocking lock: 30 second blocking locks: 40

Jam plate: 101 second lockholes: 102

Top board: 103 first lock for circuit breaker: 300

Opening button: 301 switch knobs: 302

First lockhole: 303 lock plates: 304

Inserted link: 305 torsion spring plates: 306

Push rod: 307 springs: 308

Second lock for circuit breaker: 400 pin-and-holes: 3040

Separating brake dropout top board: 3061 interlocking top boards: 3062

Embodiment

Lift a preferred embodiment below, and come the clearer the present invention that intactly illustrates by reference to the accompanying drawings.

As shown in Figure 1, the interlocking device of present embodiment includes two groups of power distribution cabinets, each group power distribution cabinet comprises that one isolates cabinet and a breaker cabinet that is electrically connected with this isolation cabinet, namely first isolates cabinet 1, second isolation cabinet 2, first breaker cabinet 3 and second breaker cabinet 4, wherein the first isolation cabinet 1 and first breaker cabinet 3 belong to first power distribution cabinet, and the second isolation cabinet 2 and second breaker cabinet 4 belong to second power distribution cabinet.

Power supply and cause power consumption equipment to damage in the time of for fear of many groups power distribution cabinet, those breaker cabinets include a blocking lock, i.e. first blocking lock 30 and second blocking lock 40, those blocking locks share one piece of first key, and each blocking lock only allows this first key to extract or insert under locking states.By this structural design, can guarantee only to have one group of power distribution cabinet is power consumption equipment power supply, power supply when having avoided many groups power distribution cabinet and cause the generation of power consumption equipment damaged condition.

Please refer to Fig. 1 and understand, each isolates the isolation lock that cabinet includes an isolating switch and this isolating switch break-make of control, and namely the first isolation lock 10 and second is isolated lock 20.Each breaker cabinet includes the lock for circuit breaker of a circuit breaker and this circuit breaker break-make of control, i.e. first lock for circuit breaker 300 and second lock for circuit breaker 400.

Because the internal structure of two groups of power distribution cabinets is identical, therefore only need tell about this first power distribution cabinet, as shown in Figure 2, the operation principle of this second power distribution cabinet repeats no more.

In this first power distribution cabinet, please refer to Fig. 2, this first isolation lock 10 and this first lock for circuit breaker 300 share one piece of second key, this first isolation lock 10 only allows this second key to extract or insert when this isolating switch is communicated with, and this first lock for circuit breaker 300 only allows this second key to extract or insert when this circuit breaker disconnects.By this structural design, can guarantee when disconnecting power distribution cabinet, according to first cut-off breaker cabinet (or this first lock for circuit breaker 300), disconnect the order of isolating cabinet (or this first isolation lock 10) again, also can guarantee when being communicated with power distribution cabinet, isolate cabinet according to being communicated with earlier, the back is communicated with the order of breaker cabinet, in order to realize the purpose of safe distribution.

In view of this first isolation lock 10 is identical with the internal structure of this first lock for circuit breaker 300, please refer to the operation principle that Fig. 3-5 understands this first isolation lock 10 among Fig. 2, can analogy understand as for this first lock for circuit breaker 300.

Shown in Fig. 3-5, this first isolation lock 10 comprises that a top board 103 and has the jam plate 101 of second lockhole 102, this top board 103 is fixed on the driving shaft 5 of this isolating switch, only when this isolating switch is communicated with, this driving shaft 5 drives this top board 103 rotations, and then cancel and pulled (please refer to Fig. 4) in the top of this jam plate 101, extract or insert after this jam plate 101 rotations one angle to allow second keys in this second lockhole 102.(please refer to Fig. 5) after second key is extracted, this jam plate 101 pushes up this handle hole baffle plate 8 of pulling, and this handle hole baffle plate 8 can't be pushed aside, and sub-switching operation hole 7 (please refer to Fig. 3) is blocked, thereby can't realize sub-switching operation.

Please refer to the operation principle that Fig. 6-9 understands this first blocking lock 30 among Fig. 2.

This first blocking lock 30 comprises an opening button 301, a switch knob 302, first lockhole 303, a lock plate 304, an inserted link 305, a torsion spring plate 306, a push rod 307 and a spring 308.This torsion spring plate 306 comprises separating brake dropout top board 3061 and interlocking top board 3062.

Under the locking states, as shown in Figure 8, this torsion spring plate 306 is in relaxed state, this interlocking top board 3062 supports compels this push rod 307, in order to make this push rod 307 insert securely in this pin-and-hole 3040, as shown in Figure 6, these push rod 307 and these pin-and-hole 3040 concentrics, this moment, this spring 308 was in compressive state.At this moment, this first key can't rotate, and therefore can't extract.

When unblanking, as shown in Figure 9, only need press this opening button 301, support urgent this separating brake dropout top board 3061 by this inserted link 305, and then drive 3062 rotations of this interlocking top board, this moment, this spring 308 was tending towards lax gradually, and drive 307 motions of this push rod, make this push rod 307 break away from the pin-and-hole 3040 of this lock plate 304, by rotating this first lockhole, 303 sliding pin jam plates 304, make this push rod 307 and this pin-and-hole 3040 misplace mutually in (please specifically with reference to figure 7), and then reach this push rod 307 and support under the pressure of the purpose on this lock plate 304.At this moment, this first lockhole 303 allows this first key to extract or insert this first lockhole 303.When this first key half-twist is extracted from this first lockhole 303, promote this lock plate 304 and move to position shown in Figure 7, and then block this switch knob 302, make this switch knob 302 to press, thereby realize can't close a floodgate mechanically.Only can extract or be inserted as prior art from lockhole after rotation one angle in view of key, the internal structure of concrete lock core is no longer given unnecessary details.

As shown in Figure 9, in this first breaker cabinet 3, this circuit breaker also comprises a sensitive switch 6, when unblanking, this opening button 301 is also supported the mode of compeling this interlocking top board 3062 by this push rod 307 of interlock, touch this sensitive switch 6 (making a pair of normally-closed contact of sensitive switch 6 be serially connected in the closing circuit), thereby cut off the electric switch-on loop of this circuit breaker, realize to close a floodgate on electric.

During locking, please also refer to Fig. 6 and Fig. 8-9 understands, by this first lockhole 303 of reverse rotation, this torsion spring plate 306 and this spring 308 drive this push rod 307 and insert in this pin-and-hole 3040 when this push rod 307 is aimed at this pin-and-hole 3040, be in locking states (please specifically with reference to figure 6) this moment.

By using this first blocking lock 30 and this second blocking lock 40, and shared one piece of first key, each blocking lock only allows this first key to extract or insert under locking states, this interlocking device has realized the electric and interlocking mechanically between different cabinets, reduced the probability of misoperation, power supply when having avoided many groups power distribution cabinet and cause power consumption equipment to damage.

Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make numerous variations or modification to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.

Claims

1. interlocking device, it includes at least two group power distribution cabinets, each group power distribution cabinet comprises that one isolates cabinet and a breaker cabinet that is electrically connected with this isolation cabinet, it is characterized in that, those breaker cabinets include a blocking lock, those blocking locks share one piece of first key, and each blocking lock only allows this first key to extract or insert under locking states.

2. interlocking device as claimed in claim 1, it is characterized in that, each isolates the isolation lock that cabinet includes an isolating switch and this isolating switch break-make of control, each breaker cabinet includes the lock for circuit breaker of a circuit breaker and this circuit breaker break-make of control, in each group power distribution cabinet, this lock for circuit breaker and this are isolated lock and are shared one piece of second key, this lock for circuit breaker only allows this second key to extract or insert when this circuit breaker disconnects, and this isolation lock only allows this second key to extract or insert when this isolating switch is communicated with.

3. interlocking device as claimed in claim 2 is characterized in that, this interlocking device comprises two groups of power distribution cabinets.

4. interlocking device as claimed in claim 3, it is characterized in that, this isolation lock comprises that a top board and has the jam plate of second lockhole, this top board is fixed on the driving shaft of this isolating switch, only when this isolating switch is communicated with, this driving shaft drives this top board rotation, and then cancels and pulled in the top of this jam plate, allows second key in this second lockhole to extract or insert after this jam plate rotates an angle.

5. interlocking device as claimed in claim 3, it is characterized in that, each blocking lock comprises that an opening button, a switch knob, a torsion spring plate, a push rod and have the lock plate of first lockhole, this opening button this push rod that links breaks away from the pin-and-hole of this lock plate, and then allow this first key to drive this lock plate motion, so that this first lockhole is extracted or inserted to this first key.

6. interlocking device as claimed in claim 5 is characterized in that, when this first key was extracted this first lockhole, this push rod supported under the pressure of on this lock plate.

7. interlocking device as claimed in claim 5 is characterized in that, each blocking lock also comprises a spring, and this torsion spring plate and this spring are used for driving this push rod when this push rod is aimed at this pin-and-hole and insert this pin-and-hole.

8. as any described interlocking device among the claim 5-7, it is characterized in that, this circuit breaker comprises a sensitive switch, and this opening button is also supported the mode of compeling this torsion spring plate by this push rod of interlock, touches the electric switch-on loop that this sensitive switch cuts off this circuit breaker.