CN105097326B - Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet - Google Patents

Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet Download PDF

Info

Publication number
CN105097326B
CN105097326B CN201510510564.4A CN201510510564A CN105097326B CN 105097326 B CN105097326 B CN 105097326B CN 201510510564 A CN201510510564 A CN 201510510564A CN 105097326 B CN105097326 B CN 105097326B
Authority
CN
China
Prior art keywords
montant
cabinet door
block
cabinet
operation axle
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
Application number
CN201510510564.4A
Other languages
Chinese (zh)
Other versions
CN105097326A (en
Inventor
苏水郑
蔡品花
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd
Original Assignee
XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd filed Critical XIAMEN MINGUANG ELECTRICAL INDUSTRIAL Co Ltd
Priority to CN201510510564.4A priority Critical patent/CN105097326B/en
Publication of CN105097326A publication Critical patent/CN105097326A/en
Application granted granted Critical
Publication of CN105097326B publication Critical patent/CN105097326B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/22Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts

Landscapes

  • Patch Boards (AREA)

Abstract

The invention discloses a mechanism for enabling an isolation switch operation shaft to be interlocked with a cabinet door for a switch cabinet. The mechanism comprises the isolation switch operation shaft. A cabinet body is equipped with a vertical rod capable of moving up and down and is fixedly connected with a first support; the upper portion of the vertical rod is fixedly connected with a baffle plate; the first support is equipped with a slide block capable of moving forward or backward and a linkage plate capable of moving up and down; the lower portion of the slide block is provided with an inclined surface; the front end of the slide block is fixedly connected with the cabinet door; the linkage plate is fixedly provided with a first transverse shaft which is cooperated with the inclined surface; the back upper portion of the cabinet door is fixedly connected with a baffle block; and a pressure spring is arranged between the linkage plate and the first support. The cabinet door opens and drives the slide block to move forward, and the slide block abdicates through the inclined surface; the pressure spring drives the linkage plate to move up; the linkage plate drives the vertical rod to move up; the baffle plate of the vertical rod baffles the operation end of the operation shaft; the operation shaft is fixedly connected with a cam; and when an isolation switch is in a close state, the cam supports the upper portion of the vertical rod, and the lower end of the vertical rod stops the baffle block from moving forwards. The mechanism ensures high-reliability interlocking, and is compact in structure.

Description

One kind is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle
Technical field
The present invention relates to switch cubicle manufacturing technology field, especially one kind are applied to make isolator operation axle in switch cubicle With the mutual lockwork of cabinet door.
Background technology
In order to improve the security that switch cubicle is used, at present when switch cubicle is designed, usually require that cabinet door and isolate Switching manipulation axle will realize interlocking, that is, disconnecting switch can not close a floodgate during cabinet door opening, when disconnecting switch is closed a floodgate, switch Cabinet door can not be opened.
At present, mutual interlocking gear on the market has various, respectively there is pluses and minuses, such as discloses a patent No. within 07 03rd, 2013 For ZL201320059567.7, the patent of invention of entitled " switch cubicle ", it includes band separating brake gangbar(1)Breaker, door, Door lock, the first linkage piece(2), the second linkage piece(3), the first universal driving shaft(4)And latch(5), the first universal driving shaft(4)Two ends point Not with the first linkage piece(2)With the second linkage piece(3)It is fixed, the first universal driving shaft(4)Rotatably coordinate on door, the first linkage piece (2)It is provided with the first elongated hole(6), separating brake gangbar(1)On be fixed with the first pin(7), the first pin(7)Fit snugly within first Elongated hole(6)It is interior, the second linkage piece(3)It is provided with the second elongated hole(9), latch(5)Fit snugly within door, latch(5)It is provided with Two pins(8), the second pin(8)Fit snugly within the second elongated hole(9)It is interior, the lock core of door lock(28)It is provided with and supplies latch(5)Insertion Spacing hole(10).The switch cubicle can guarantee that the lock core of the door lock of breaker open operation rear cabinet door could be rotated.But its link gear Complex, the reliability of action has much room for improvement.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind and is applied to make isolator operation axle and cabinet door in switch cubicle Mutually lockwork, its interlocking reliability height, and compact conformation, further improve switch cubicle safety in utilization.
To reach above-mentioned purpose, the technical scheme is that:One kind is applied to make isolator operation axle in switch cubicle With the mutual lockwork of cabinet door, including isolator operation axle, isolator operation axle is provided with an operating side, one is equipped with cabinet Montant moving up and down, the connected baffle plate in top of montant, the baffle plate can block the operation when montant is moved up At least a portion at end, the baffle plate can depart from the operating side when montant is moved down;
Be connected first support on cabinet below isolator operation axle, can move forward and backward equipped with one in first support Slide block, front end and the cabinet door of slide block are fixedly connected with, and a linkage board moving up and down is also equipped with first support, and the bottom of slide block sets There is an inclined-plane, the first transverse axis fixed on linkage board and is engaged with the inclined-plane, stage clip is also equipped between linkage board and first support, Linkage board is driven to move down by the first transverse axis when slide block is moved rearwards by, the upper end of linkage board drives the montant to move down or described perpendicular Bar is moved down by Spring driving, and stage clip drives and moved on linkage board when slide block is moved forward, and the upper end of linkage board drives the montant Upper shifting;
The connected block in the upper back of cabinet door, when montant is moved down, the lower end of montant stops the block reach, moves on montant When, the lower end of montant releases the stop to the block;
Be connected a cam in the operating shaft, and when disconnecting switch is in "on" position, the cam withstands montant top, every Leave pass in gate-dividing state when, the cam departs from montant top.
Further improve, the slide block is provided with longitudinal strip pilot hole, in first support fixed second transverse axis with it is vertical It is engaged to strip pilot hole.Shift precision before and after to guarantee slide block.
Further improve, the first support is provided with vertical strip pilot hole and is engaged with first transverse axis.With Guarantee the shift precision up and down of linkage board.
Further improve, be engaged with cabinet door equipped with a microswitch on cabinet, when cabinet door is opened, microswitch disconnects, When cabinet door is closed, microswitch closure.During so that cabinet door being opened, motor-operating mechanism can not be operated on switch cubicle, further be carried High safety in utilization.
Further improve, the rear portion of the slide block is provided with a spacing barb.To limit the opening degree of cabinet door, also can prevent Slide block departs from first support.
Further improve, the bottom of the montant is provided with cannelure, and the linkage board upper end is provided with a horizontal kink, it is horizontal A U-lag is provided with to kink, linkage board upper end is stuck in the annular of the montant bottom using the U-lag on horizontal kink On groove.To facilitate linkage board to drive montant to shift up and down.
Further improve, second support is fixed with the cabinet, the montant is worn on the secondary support bracket.To facilitate montant Installation.
It is preferred that the block is provided with a upwardly extending limiting section, when the montant is moved down, the lower end of montant is blocked described Limiting section.
It is preferred that the baffle plate is L-shaped.
It is preferred that the block is connected on the upper back of cabinet door using at least two bolt locks.To realize the emergency release of cabinet door.
Cabinet door of the present invention is connected with slide block, and band movable slider reach when cabinet door is opened, slide block is stepped down by the inclined-plane of bottom, made Stage clip can drive and moved on linkage board, and linkage board drives shifting on montant, the baffle plate on montant top just can reliably block every The operating side for closing operating shaft is left, disconnecting switch can not close a floodgate;And when disconnecting switch is closed a floodgate, the cam is withstood on montant Portion, montant can not go up shifting, and the lower end of montant stops the block reach, therefore cabinet door can not be opened;Realize cabinet door open after Leaving pass can not close a floodgate, and when disconnecting switch is closed a floodgate, cabinet door can not be opened, and its interlocking reliability is high, and further improving switch cubicle makes Use security.
On the other hand, the present invention drives linkage board by slide block and stage clip, and by linkage board montant movement, overall knot are driven Structure is more compact.
Description of the drawings
Fig. 1 is that the present invention is arranged on stereogram on switch cubicle;
Fig. 2 is the stereogram that Fig. 1 hides cabinet door;
Fig. 3 is stereogram of the present invention;
Fig. 4 is front view of the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is enlarged drawing at the A of Fig. 5;
Fig. 7 is the right view of Fig. 4;
Fig. 8 is enlarged drawing at the B of Fig. 7;
Fig. 9 is present invention slider stereogram;
Figure 10 is first support stereogram of the present invention;
Figure 11 is block stereogram of the present invention;
Figure 12 is that linkage board of the present invention is connected with each other stereogram with montant.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment.
Shown in Fig. 1 to Figure 12, one kind is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, including Isolator operation axle 1, isolator operation axle 1 is provided with an operating side, and operating side is provided with an axial operation hole 11, isolation Switching manipulation axle 1 is connected in the disconnecting switch being installed in switch cubicle.
Equipped with a montant moving up and down 2 on cabinet 100, the connected baffle plate 21 in top of montant 2, baffle plate 21 is L-shaped, Montant 2 when moving up the baffle plate 21 can block the handle hole 11 on the operating side of operating shaft 1 part or all, this Baffle plate 21 only blocks a part for the handle hole 11 described in embodiment;Montant 2 when moving down the baffle plate 21 can depart from The handle hole 11 on the operating side of operating shaft 1.
On cabinet 100 below isolator operation axle 1 be connected first support 3, in first support 3 equipped with one can before and after Mobile slide block 4, the front end of slide block 4 is provided with a kink 41 and is fixedly connected with the rear portion of cabinet door 200, can be solid using bolt or welding Even.
A linkage board moving up and down 5 is also equipped with first support 3, the bottom of slide block 4 is provided with an inclined-plane 42, linkage board The first transverse axis 51 is fixed on 5 to be engaged with the inclined-plane 42, and stage clip 6 is also equipped between linkage board 5 and first support 3.
Linkage board 5 is driven to move down by the first transverse axis 51 when slide block 4 is moved rearwards by, the upper end of linkage board 5 drives described erecting Bar 2 is moved down, or moving down for the montant 2 is enclosed within the spring on montant 2 to complete by one.
Stage clip 6 drives and moved on linkage board 5 when slide block 4 is moved forward, and the upper end of linkage board 5 drives and moved on the montant 2.
The connected block 7 in the upper back of cabinet door 200, when montant 2 is moved down, the lower end of montant 2 stops that the block 7 moves forward, When moving on montant 2, the lower end of montant 2 releases the stop to the block 7.
The slide block 4 is provided with longitudinal strip pilot hole 43, fixed second transverse axis 31 and longitudinal strip in first support 3 Shape pilot hole 43 is engaged, to guarantee the shift precision in front and back of slide block 4.
The first support 3 is provided with vertical strip pilot hole 32 and is engaged with the first transverse axis 51, to guarantee linkage board 5 Shift precision up and down.
Be connected a cam 8 in the operating shaft 1, and when disconnecting switch is in "on" position, the cam 8 is withstood on montant 2 Portion, when disconnecting switch is in gate-dividing state, the cam 8 departs from the top of montant 2.
The rear portion of the slide block 4 is provided with a spacing barb 44, to limit the opening degree of cabinet door 200, also can anti-limited slip block 4 Depart from first support 3.
The bottom of the montant 2 is provided with cannelure 22, and the upper end of the linkage board 5 is provided with a horizontal kink 52, laterally curved Folding part 52 is provided with a U-lag 521, and the upper end of linkage board 5 is stuck under the montant 2 using the U-lag 521 on horizontal kink 52 On the cannelure 22 in portion.
Second support 9 is fixed with the cabinet 100, the montant 2 is through in second support 9.
The block 7 is provided with a upwardly extending limiting section 71, and when the montant 2 is moved down, the lower end of montant 2 is blocked described Limiting section 71.
The block 7 is connected on the upper back of cabinet door 200 using two bolt locks.Need to dismantle two bolts during emergency release Cabinet door 200 can just be opened.
One microswitch 10 is also installed on the cabinet 100 to be engaged with cabinet door 200, when cabinet door 200 is opened, fine motion is opened Close 10 to disconnect, when cabinet door 200 is closed, microswitch 10 is closed, to facilitate the logical of motor-operating mechanism power supply on controlling switch cabinet It is disconnected so that the unlatching of cabinet door 200 also forms interlocking with motor-operating mechanism and motor-operating mechanism.
The present embodiment course of work is as follows:When disconnecting switch is in gate-dividing state, the cam 8 departs from the top of montant 2, Montant 2 can be moved up and down, and now as opened cabinet door 200, cabinet door 200 is moved forward with movable slider 4, and stage clip 6 just drives linkage board 5 Upper shifting, the upper end of linkage board 5 drives and moved on the montant 2, montant 2 when moving up the baffle plate 21 block the handle hole 11 A part so that isolator operation axle 1 cannot be operated, that is, cabinet door 200 open when, disconnecting switch can not close a floodgate, together When microswitch 10 disconnect, roof-cut resistence cabinet motor-operating mechanism power supply, motor-operating mechanism can not be operated;
Now cabinet door 200 is closed, cabinet door 200 is moved rearwards by with movable slider 4, slide block 4 drives connection by the first transverse axis 51 Dynamic plate 5 is moved down, and the upper end of linkage board 5 drives the montant 2 to move down, montant 2 when moving down the baffle plate 21 just depart from described Handle hole 11, isolator operation axle 1 is operable, and disconnecting switch can close a floodgate, that is, cabinet door 200 is when being closed, Disconnecting switch could close a floodgate.In addition, when cabinet door 200 is closed, microswitch 10 could be closed, electricity on ON switch cabinet Pneumatic operating mechanism power supply, motor-operating mechanism could be operated.
When disconnecting switch is in "on" position, the cam 8 withstands the top of montant 2, and montant 2 can not go up shifting, montant 2 Lower end stops that the block 7 moves forward, therefore cabinet door 200 can not be opened, therefore under normal circumstances in disconnecting switch in combined floodgate Under state, cabinet door 200 cannot be opened.
But, when being in "on" position such as disconnecting switch under some state of emergency, when needing to open cabinet door 200, this reality Applying example also can accomplish, the block 7 is got off with two Bolt dismantlings of the Joint of cabinet door 200, can just open cabinet door 200, with Process some emergency managements.
The above is only a preferred embodiment of the invention, the change that those skilled in the art is made to be equal to by claim Both fall within the protection domain of this case.

Claims (10)

1. one kind is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, including isolator operation axle, Isolator operation axle is provided with an operating side, it is characterised in that:On cabinet be equipped with a montant moving up and down, montant it is upper Portion is connected a baffle plate, and the baffle plate can block at least a portion of the operating side when montant is moved up, and montant is to moving down The baffle plate can depart from the operating side when dynamic;
Be connected first support on cabinet below isolator operation axle, and a cunning that can be moved forward and backward is housed in first support Block, front end and the cabinet door of slide block are fixedly connected with, and a linkage board moving up and down is also equipped with first support, and the bottom of slide block is provided with One inclined-plane, fixes the first transverse axis and is engaged with the inclined-plane on linkage board, stage clip is also equipped between linkage board and first support, sliding Linkage board is driven to move down by the first transverse axis when block is moved rearwards by, the upper end of linkage board drives the montant to move down or the montant Moved down by a Spring driving being enclosed within montant, slide block move forward when stage clip drive linkage board on move, linkage board it is upper End drives and moved on the montant;
The connected block in the upper back of cabinet door, when montant is moved down, the lower end of montant stops the block reach, when moving on montant, The lower end of montant releases the stop to the block;
Be connected a cam in the operating shaft, and when disconnecting switch is in "on" position, the cam withstands montant top, keeps apart When pass is in gate-dividing state, the cam departs from montant top.
2. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The slide block is provided with longitudinal strip pilot hole, fixed second transverse axis and longitudinal strip in first support Pilot hole is engaged.
3. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The first support is provided with vertical strip pilot hole and is engaged with first transverse axis.
4. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:It is engaged with cabinet door equipped with a microswitch on cabinet, when cabinet door is opened, microswitch disconnects, and cabinet door is closed When, microswitch closure.
5. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The rear portion of the slide block is provided with a spacing barb.
6. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The bottom of the montant is provided with cannelure, and the linkage board upper end is provided with a horizontal kink, horizontal kink A U-lag is provided with, linkage board upper end is stuck on the cannelure of the montant bottom using the U-lag on horizontal kink.
7. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:Second support is fixed with the cabinet, the montant is worn on the secondary support bracket.
8. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The block is provided with a upwardly extending limiting section, and when the montant is moved down, the limit is blocked in the lower end of montant Position portion.
9. one kind according to claim 1 is applied to make isolator operation axle and the mutual lockwork of cabinet door in switch cubicle, It is characterized in that:The baffle plate is L-shaped.
10. the one kind according to any one of claim 1 to 9 is applied to make isolator operation axle mutual with cabinet door in switch cubicle Lockwork, it is characterised in that:The block is connected on the upper back of cabinet door using at least two bolt locks.
CN201510510564.4A 2015-08-19 2015-08-19 Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet Active CN105097326B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510510564.4A CN105097326B (en) 2015-08-19 2015-08-19 Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510510564.4A CN105097326B (en) 2015-08-19 2015-08-19 Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet

Publications (2)

Publication Number Publication Date
CN105097326A CN105097326A (en) 2015-11-25
CN105097326B true CN105097326B (en) 2017-05-03

Family

ID=54577533

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510510564.4A Active CN105097326B (en) 2015-08-19 2015-08-19 Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet

Country Status (1)

Country Link
CN (1) CN105097326B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107412822B (en) * 2017-04-28 2023-08-29 火星人厨具股份有限公司 Sterilizing cabinet with improved structure
CN107393741B (en) * 2017-08-28 2020-02-14 贵州泰豪电力科技有限公司 Circuit breaker switching system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982310A (en) * 1987-10-30 1991-01-01 Cooper Power Systems, Inc. Switchgear enclosure with improved electronic control access door and lock
CN202172031U (en) * 2011-08-08 2012-03-21 厦门闽光电气实业有限公司 Interlocking device of switch cabinet door and grounding switch
CN203352036U (en) * 2013-07-09 2013-12-18 厦门闽光电气实业有限公司 Switchgear
CN203351457U (en) * 2013-07-09 2013-12-18 厦门闽光电气实业有限公司 Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door
CN203434502U (en) * 2013-09-04 2014-02-12 厦门闽光电气实业有限公司 A switch cabinet provided with isolating switches, vacuum circuit breakers, and grounding switches
CN204332748U (en) * 2015-01-15 2015-05-13 厦门明翰电气股份有限公司 A kind of earthed switch and cable vault's back door interlocking device
CN204857511U (en) * 2015-08-19 2015-12-09 厦门闽光电气实业有限公司 It makes each other lockwork of isolator operating axis and cabinet door in cubical switchboard to be applied to

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4982310A (en) * 1987-10-30 1991-01-01 Cooper Power Systems, Inc. Switchgear enclosure with improved electronic control access door and lock
CN202172031U (en) * 2011-08-08 2012-03-21 厦门闽光电气实业有限公司 Interlocking device of switch cabinet door and grounding switch
CN203352036U (en) * 2013-07-09 2013-12-18 厦门闽光电气实业有限公司 Switchgear
CN203351457U (en) * 2013-07-09 2013-12-18 厦门闽光电气实业有限公司 Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door
CN203434502U (en) * 2013-09-04 2014-02-12 厦门闽光电气实业有限公司 A switch cabinet provided with isolating switches, vacuum circuit breakers, and grounding switches
CN204332748U (en) * 2015-01-15 2015-05-13 厦门明翰电气股份有限公司 A kind of earthed switch and cable vault's back door interlocking device
CN204857511U (en) * 2015-08-19 2015-12-09 厦门闽光电气实业有限公司 It makes each other lockwork of isolator operating axis and cabinet door in cubical switchboard to be applied to

Also Published As

Publication number Publication date
CN105097326A (en) 2015-11-25

Similar Documents

Publication Publication Date Title
CN101536279B (en) Switchgear
CN104520522B (en) Door lock assembly for emergency exit door
CN107210148B (en) Mechanical interlocked component for disconnecting switch and earthing switch
CN105406386B (en) The interlock of valve and earthing switch
CN102231467A (en) Crimping tool head
CN105097326B (en) Mechanism for enabling isolation switch operation shaft to be interlocked with cabinet door for switch cabinet
CN106981402B (en) Pulling off device for air-break circuit-breaker
CN107112170A (en) Trigger-type control system for circuit breaker polar and release unit
CN104066914A (en) Door latch release force transmission mechanism
CN110247330B (en) Switch cabinet and valve driving mechanism with self-locking function
CN107946107A (en) The switchgear of interlock is equipped between a kind of Xiamen and earthing switch and disconnecting switch
CN102723222B (en) Fixed high-voltage switch cabinet interlocking mechanism
DE102012108877B4 (en) Medium voltage switchgear
CN104319132B (en) A kind of switch cubicle operating mechanism
CN103422736A (en) Lock for a door
CN204857511U (en) It makes each other lockwork of isolator operating axis and cabinet door in cubical switchboard to be applied to
CN104131745B (en) A kind of electronic lock drive mechanism
CN205385239U (en) Valve and earthing switch's interlock
CN206059215U (en) A kind of five anti-mechanical latching interlock of high-tension switch cabinet
CN203288462U (en) An operational interlock of a ring main unit
CN201820660U (en) Load switch and fail safe interlocking operation device of fuse combined cabinet
CN104134558B (en) Disconnecting switch and earthed switch interlocking method and implement the interlock of the method
EP3649710B1 (en) Electrical cabinet with front door interlock
CN208478220U (en) A kind of five anti-interlocking operation mechanisms of middle-high voltage switch
CN206864345U (en) Anti-misoperation ring main unit

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant