CN104319133A - Switch cabinet having interlocking function - Google Patents

Switch cabinet having interlocking function Download PDF

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Publication number
CN104319133A
CN104319133A CN201410615130.6A CN201410615130A CN104319133A CN 104319133 A CN104319133 A CN 104319133A CN 201410615130 A CN201410615130 A CN 201410615130A CN 104319133 A CN104319133 A CN 104319133A
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CN
China
Prior art keywords
switch
main shaft
supporting bracket
vacuum
switch unit
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Granted
Application number
CN201410615130.6A
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Chinese (zh)
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CN104319133B (en
Inventor
贾宝荣
姚加
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HUZHOU ELECTRIC POWER COMPLETE EQUIPMENT Co Ltd
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HUZHOU ELECTRIC POWER COMPLETE EQUIPMENT Co Ltd
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Priority to CN201410615130.6A priority Critical patent/CN104319133B/en
Publication of CN104319133A publication Critical patent/CN104319133A/en
Application granted granted Critical
Publication of CN104319133B publication Critical patent/CN104319133B/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01H9/26Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01H9/26Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • H01H2009/265Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches

Abstract

The invention provides a switch cabinet having an interlocking function and belongs to the technical field of manufacture of high-voltage electrical appliances. The switch cabinet comprises a low-voltage compartment, a high-voltage compartment and an operating mechanism, wherein the high-voltage compartment comprises an isolation switch unit, a vacuum switch unit, a grounding switch unit and a primary element sequentially from top to bottom. The isolation switch unit is in linkage connection with the grounding switch unit through a connecting rod mechanism, and interlocking brake among the operating mechanism, the isolation switch unit and the grounding switch unit is achieved. The switch cabinet having the interlocking function is simple in structure and is provided with a grounding switch and isolation switch integrated linkage mechanism for facilitating installation and maintenance, a limiting module on the operating mechanism and the linkage mechanism perform interlocking brake, operation is flexible, and fault rate is low.

Description

A kind of switch cubicle with interlock
Technical field
The present invention relates to high-voltage electrical equipment manufacturing technology field, especially a kind of switch cubicle with interlock.
Background technology
Switch cubicle is used to on-off and protection supply line and realizes excising the equipment of faulty line with Cooperation with Relay.When supply line or equipment break down and when overhauling normally, cabinet door can be opened after needing to disconnect the isolating switch in vacuum switch, cut-off switch cabinet, the earthed switch that closes successively and operate.At present, operating personnel need to operate separately vacuum switch, isolating switch, earthed switch, and interlocking device is often connected with earthed switch and realizes anti-lock function, such complex operation, if operating personnel operate unskilled meeting cause operate miss, while isolating switch does not disconnect, open cabinet door have potential safety hazard.And, existing interlocking device is quite simple, the general place that arranges at cabinet door place locks, such as utility model patent CN201994208U discloses a kind of interlocking device for switch cabinet grounding switch, it mainly utilizes the chain interlocking bolt taken turns and be located on door of switch cabinet be located on grounding switch main shaft to match, by rotating grounding switch main shaft and being communicated with between cabinet door or disconnecting, the matching being interlocking bolt and interlocking wheel at Long-Time Service reduces, and can reduce Interlock Function.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, a kind of switch cubicle of band interlock being easy to install, safeguard is provided.
Technical scheme of the present invention is to provide a kind of switch cubicle with interlock, it is characterized in that, comprise low-voltage compartment, high pressure compartment, operating mechanism, described high pressure compartment is followed successively by Disconnecting switch unit, vacuum switch unit, earthed switch unit, primary element from top to bottom; Described Disconnecting switch unit and described earthed switch unit are connected by linkage, described operating mechanism and realize interlocked brake between described Disconnecting switch unit and described earthed switch unit three.
This switch cubicle has Disconnecting switch unit-earthed switch unit one link gear, makes switch cubicle be convenient to installation, maintenance, safeguard; And there is the operating mechanism of interlocked brake effect, make when operating personnel operate operating mechanism, isolating switch disconnects (or closed), and earthed switch closed (or disconnection), cabinet door unlocks or locking.
As preferably of the present invention, described Disconnecting switch unit comprises isolating switch main shaft, the first insulated tension pole, isolating switch, the first insulated column; Described earthed switch unit comprises earthing, grounding switch main shaft, the second insulated column; Described grounding switch main shaft and described isolating switch main shaft are connected by described linkage.
As preferably of the present invention, described linkage comprises the second linkage board, portable plate, stock, the 3rd linkage board, four-axle linkage plate; Described linkage is arranged in described frame along y direction, described second linkage board and described isolating switch main shaft are connected, and connecting described portable plate, described stock, described 3rd linkage board, described four-axle linkage plate according to this, described four-axle linkage plate and described grounding switch main shaft are connected.
As preferably of the present invention, described vacuum switch unit comprises the second upper connecting terminal, the second pole, the second vacuum packet, vacuum switch main shaft, the second insulated tension pole, the second connecting lever, the second insulated support, insulating knockout pin, release, fuse base, fuse, the second sealing insulating barrier, the second lower connecting terminal; Described vacuum switch unit connects described isolating switch by described second upper connecting terminal, described second upper connecting terminal connects insulated tension pole described in the second vacuum packet and second of being located in described second pole successively, described second vacuum packet and described second insulated tension pole and all connect in shake-up mode between described second insulated tension pole and described second connecting lever, described second connecting lever and described vacuum switch main shaft are connected; Described fuse is carried in described fuse base, one end is connected between described second vacuum packet and described second insulated tension pole by described second sealing insulating barrier, and the other end connects described second insulated support and described insulating knockout pin that are connected with described second pole respectively by described release.
As preferably of the present invention, described vacuum switch unit comprises the first upper connecting terminal, the first pole, the first vacuum packet, vacuum switch main shaft, the 3rd insulated tension pole, the first connecting lever, the first insulated support, the first sealing insulating barrier, busbar, the first lower connecting terminal; Described vacuum switch unit connects described isolating switch by described first upper connecting terminal, described first upper connecting terminal connects successively and is located at the first vacuum packet in described first pole and described 3rd insulated tension pole, described first vacuum packet and described 3rd insulated tension pole and all connect in shake-up mode between described 3rd insulated tension pole and described first connecting lever, described first connecting lever and described vacuum switch main shaft are connected; Described busbar one end is connected between described first vacuum packet and described 3rd insulated tension pole by described first sealing insulating barrier, and the other end is connected with described first pole by described first insulated support.
As preferably of the present invention, described operating mechanism comprises and isolating switch and the earthed switch one limit assembly of interlocked brake, energy accumulation handle, switch lever, separating brake handle and energy-stored spring; Described operating mechanism is arranged on the dividing plate between frame in switch cubicle and cabinet door.
As preferably of the present invention, described limit assembly comprises operation hand lever action component, the first rotatable parts and the first limiting plate; Described operation hand lever action component and described isolating switch main shaft are connected; Described first rotatable parts one end is fixedly connected with described isolating switch main shaft, and the other end is flexibly connected with described first limiting plate be arranged on described dividing plate.
As preferably of the present invention, described operational motion parts comprise the first supporting bracket and round bar; Described round bar and isolating switch main shaft are coaxially arranged, elastomeric element is provided with along the axis direction of described isolating switch main shaft between described round bar and described isolating switch main shaft, be provided with the first activity bar by described elastomeric element effect in described round bar, the avris of described round bar offers loose slot in order to hold described first activity bar; Become chute to coordinate between described first supporting bracket and described dividing plate, and described first supporting bracket is arranged on the side of described round bar, described first supporting bracket and described first activity bar realize dynamic cooperation.
As preferably of the present invention, described limit assembly also comprises the second rotatable parts; Described operational motion parts also comprise the second supporting bracket; One end of described second rotatable parts is connected with described switch lever and described separating brake handle respectively, and the other end and described second supporting bracket of described second rotatable parts are connected; Become chute to coordinate between described second supporting bracket and described dividing plate, and described second supporting bracket is arranged on the opposite side of described round bar, described second supporting bracket and described first activity bar realize dynamic cooperation.
As preferably of the present invention, described operational motion parts also comprise the 3rd supporting bracket, chute is become to coordinate between described 3rd supporting bracket and described dividing plate, and described 3rd supporting bracket is arranged on the side of described first supporting bracket, described 3rd supporting bracket is connected by the first spring with between described first supporting bracket.
The present invention has following beneficial effect:
The switch cabinet structure of band interlock of the present invention is simple, has earthed switch-isolating switch and is integrated link gear so that installation and maintenance, and limit assembly on operating mechanism and described link gear interlocked brake, flexible operation, failure rate is low.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the switch cubicle of band interlock of the present invention;
Fig. 2 a is the inside switch cabinet local structural graph of band interlock of the present invention;
Fig. 2 b is the topology view in A direction in Fig. 2 a;
Fig. 3 a is the inside switch cabinet local structural graph of band interlock of the present invention;
Fig. 3 b is the topology view in A direction in Fig. 3 a;
Fig. 4 is the structure chart of the limit assembly of the switch cubicle of band interlock of the present invention.
In figure, 1-low-voltage compartment; 2-high pressure compartment; 21-Disconnecting switch unit; 211-isolating switch main shaft; 212-first insulated tension pole; 213-isolating switch; 214-first insulated column; 22-vacuum switch unit; 2212-vacuum switch main shaft; 2212a-first upper connecting terminal; 2212b-first lower connecting terminal; 2213-first pole; 2214-first vacuum packet; 2215-the 3rd insulated tension pole; 2216-first connecting lever; 2217-first insulated support; 2218-busbar; 2219-first sealing insulating barrier; 2222a-second upper connecting terminal; 2222b-second lower connecting terminal; 2223-second pole; 2224-second vacuum packet; 2225-second insulated tension pole; 2226-second connecting lever; 2227-second insulated support; 2228-insulating knockout pin; 2229-fuse; 22291-fuse base; 22292-second sealing insulating barrier; 22293-release; 23-earthed switch unit; 231-grounding switch main shaft; 232-earthing; 233-second insulated column; 4-frame; 5-dividing plate; 6-linkage; 61-second linkage board; 62-portable plate; 63-stock; 64-the 3rd linkage board; 65-four-axle linkage plate; Fixed part on 66-linkage; 7-operating mechanism; 71-limit assembly; 711-operational motion parts; 7111-round bar; 71111-elastomeric element; 71112-first activity bar; 7112-first supporting bracket; 7112a-first lock part; 7112b-second lock part; 7113-second supporting bracket; The movable circumference plate of 7115-; 712-first limiting plate; 7121-coupling part; 7122-buckle; 713-first rotatable parts; 714-second rotatable parts; 715-the 3rd rotatable parts; 7151-big spring; 72-energy accumulation handle; 73-switch lever; 74-separating brake handle; 8-guidance panel.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1-3b shows the structural representation of the switch cubicle of band interlock of the present invention.The switch cubicle of this band interlock comprises cabinet, cabinet door, frame 4, dividing plate 5 and switchgear; Low-voltage compartment, high pressure compartment, operating mechanism is provided with in described cabinet; Described high pressure compartment is provided with Disconnecting switch unit, vacuum switch unit, earthed switch unit, primary element from top to bottom successively in frame 4.Wherein said Disconnecting switch unit and described earthed switch unit are integrally formed link gear by linkage, and operating mechanism is arranged on the dividing plate 5 between frame 4 and cabinet door, and described operating mechanism is in order to control switch cabinet on/off switch and energy storage; Described operating mechanism and realize interlocked brake between described Disconnecting switch unit and described earthed switch unit three.When operating personnel disconnect, closed isolating switch and earthed switch time, by one link gear and operating mechanism interlocked brake, unlock or lock cabinet door.Such layout makes switch cubicle have collection and controls isolating switch-earthed switch-cabinet door operating mechanism integrally, flexible operation, and equipment failure rate is low, convenient operation personnel installation, maintenance, maintenance.
Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are electrically connected successively, when switch cubicle operates, carry out cut-offfing the work such as short circuit current or deciliter load current.Described Disconnecting switch unit comprises isolating switch main shaft 211, first insulated tension pole 212, isolating switch 213, first insulated column 214.Described earthed switch unit comprises earthing 232, grounding switch main shaft 231, second insulated column 233.Described first insulated column 214 to be fixed in frame 4 and to be flexibly connected with described isolating switch 213, and described isolating switch 213 is connected with described isolating switch main shaft 211 by described first insulated tension pole 212; Described first insulated tension pole 212 coordinates with described isolating switch 213 and described isolating switch main shaft 211 one-tenth angles respectively, when isolating switch main shaft 211 rotates, described first insulated tension pole 212 is subject to interlock power and is outwards thrown off by isolating switch 213 or inwardly close.
As Fig. 2 a-2b, described vacuum switch unit can comprise the second upper connecting terminal 2222a, the second pole 2223, second vacuum packet 2224, vacuum switch main shaft 2212, second insulated tension pole 2225, second connecting lever 2226, second insulated support 2227, insulating knockout pin 2228, release 22293, fuse base 22291, fuse 2229, second sealing insulating barrier 22292, second lower connecting terminal 2222b.Described isolating switch connects described isolating switch by the second upper connecting terminal 2222a, described second upper connecting terminal 2222a connects successively and is located at the second vacuum packet 2224 in described second pole 2223 and described second insulated tension pole 2225, described second vacuum packet 2224 and described second insulated tension pole 2225 and all connect in shake-up mode between described second insulated tension pole 2225 and described second connecting lever 2226, described second connecting lever 2226 is connected with described vacuum switch main shaft 2212; Described fuse 2229 is carried in described fuse base 22291, one end is connected between described second vacuum packet 2224 and described second insulated tension pole 2225 by described second sealing insulating barrier 22292, and the other end connects described second insulated support 2227 being built in described second pole 2223 and the described insulating knockout pin 2228 be connected with described second pole 2223 respectively by described release 22293.When rotation vacuum switch spindle 2212 is with closed vacuum switch, revolving force is passed to the moving contact in described second insulated tension pole 2225 by described vacuum switch main shaft 2212 through the second connecting lever 2226, on its moving contact, top makes the fixed contact in the second vacuum packet 2224 connect, and now vacuum switch closes.After completing isolating switch, vacuum switch closed procedure successively, the current-carrying part-fuse 2229 in isolating switch-the second upper connecting terminal 2222a-second vacuum packet-the second sealing insulating barrier 22292 forms current path-the second lower connecting terminal 2222b.When a failure occurs it, fuse 2229 is thrown off by de-mouthpart and disconnects, and disconnects vacuum switch arc extinguishing successively, disconnects isolating switch.Wherein earthed switch disconnection, closed with isolating switch closed, disconnect and realizing.
As Fig. 3 a, 3b, described vacuum switch unit can also be the first upper connecting terminal 2212a, the first pole 2213, first vacuum packet 2214, vacuum switch main shaft 2212, the 3rd insulated tension pole 2215, first connecting lever 2216, first insulated support 2217, first sealing insulating barrier 2219, busbar 2218, first lower connecting terminal 2212b; Described vacuum switch unit connects described isolating switch by described first upper connecting terminal 2212a, described first upper connecting terminal 2212a connects successively and is located at the first vacuum packet 2214 in described first pole 2213 and described 3rd insulated tension pole 2215, described first vacuum packet 2214 and described 3rd insulated tension pole 2215 and all connect in shake-up mode between described 3rd insulated tension pole 2215 and described first connecting lever 2216, described first connecting lever 2216 is connected with described vacuum switch main shaft 2212; Described busbar 2218 one end is connected between described first vacuum packet 2214 and described 3rd insulated tension pole 2215 by described first sealing insulating barrier 2219, and the other end is connected with described first pole 2213 by described first insulated support 2217.Described isolating switch connects described isolating switch by the first upper connecting terminal 2212a, described first upper connecting terminal 2212a connects successively and is located at the first vacuum packet 2214 in described first pole 2213 and described 3rd insulated tension pole 2215, described first vacuum packet 2214 and described 3rd insulated tension pole 2215 and all connect in shake-up mode between described 3rd insulated tension pole 2215 and described first connecting lever 2216, described first connecting lever 2216 is connected with described vacuum switch main shaft 2212; Described busbar 2218 one end is connected between described first vacuum packet 2214 and described 3rd insulated tension pole 2215 by described first sealing insulating barrier 2219, and the other end is connected with described first pole 2213 by described first insulated support 2217.When rotation vacuum switch spindle 2212 is with closed vacuum switch, revolving force is passed to the moving contact in described 3rd insulated tension pole 2215 by described vacuum switch main shaft 2212 through the first connecting lever 2216, on its moving contact, top makes the fixed contact in the first vacuum packet 2214 connect, and now vacuum switch closes.After completing isolating switch, vacuum switch closed procedure successively, the current-carrying part-busbar 2218-first lower connecting terminal 2212b in isolating switch-the first upper connecting terminal 2212a-first vacuum packet 2214-first sealing insulating barrier 2219 forms supply line.When a failure occurs it, busbar 2218 is thrown off from supply line, and disconnects vacuum switch arc extinguishing successively, disconnects isolating switch.Wherein earthed switch disconnection, closed with isolating switch closed, disconnect and realizing.
In order to improve flexibility and the fail safe of operation, the link gear of one isolating switch-earthed switch is set.The interlock of isolating switch and earthed switch is realized by linkage, solves the problem of isolating switch and earthed switch separate operation in prior art.This linkage comprises the second linkage board 61, portable plate 62, stock 63, the 3rd linkage board 64, four-axle linkage plate 65.Described linkage is arranged on the side of described frame 4 along y direction, and described second linkage board 61 one end is socketed in outside described isolating switch main shaft 211, rotates and action with described isolating switch main shaft 211; The other end of described second linkage board 61 and one end of described portable plate 62 are flexibly connected, and both moving fulcrums are fixed in described frame 4; The other end of described portable plate 62 is flexibly connected with one end of stock 63; Described stock 63 is long, when isolating switch main shaft 211-linkage-grounding switch main shaft 231 three links be exempt from stock 63 depart from y direction make the power of transmission deflect or transmit power diminish, and then make when disconnecting isolating switch, earthed switch cannot on normal occlusion, then need to arrange fixed part 66 at stock 63 local location, make stock 63 keep arranging along the y direction of described frame 4; The other end of described stock 63 is connected with one end of described 3rd linkage board 64, and described 3rd linkage board 64 other end is flexibly connected with one end of described four-axle linkage plate 65; Described four-axle linkage plate 65 one end is socketed in outside described grounding switch main shaft 231.Wherein, described second linkage board 61 is connected with described portable plate 62 one-tenth angle, and described 3rd linkage board 64 is connected with described four-axle linkage plate 65 one-tenth angles.When isolating switch main shaft 211 is rotated counterclockwise, isolating switch disconnects, the revolving force of isolating switch main shaft 211 drives described linkage action, transmit revolving force by the second linkage board 61, portable plate 62, stock 63, the 3rd linkage board 64, four-axle linkage plate 65 successively, make described four-axle linkage plate 65 drive grounding switch main shaft 231 to rotate and the earthed switch that closes; When isolating switch main shaft 211 turns clockwise, isolating switch closes, the revolving force drivening rod mechanism counteragent of isolating switch main shaft 211, drives grounding switch main shaft 231 reverse rotation and disconnects earthed switch.
Described operating mechanism is arranged on the dividing plate 5 of frame 4 side, and it comprises the limit assembly of the energy accumulation handle 72 of vacuum switch, separating brake handle 74, switch lever 73, separating brake indicating device, combined floodgate indicating device, energy-stored spring and energy storage instruction and isolating switch-earthed switch-cabinet door one interlocked brake.This limit assembly is under energy accumulation handle 72, separating brake handle 74, switch lever 73 interoperation, described isolating switch and earthed switch link gear then interlocked brake, with realize isolating switch close a floodgate while grounding switch tripping and switch cubicle locking, and while isolating switch separating brake earthed switch close a floodgate and switch cubicle open.
As Fig. 2 a, 3a, 4, described limit assembly comprises operational motion parts, the first rotatable parts 713 and the first limiting plate 712.Described operational motion parts run through on the dividing plate 5 that is arranged between cabinet and cabinet door, described operational motion parts and described isolating switch main shaft 211 are connected, described first rotatable parts 713 one end is fixedly connected with described isolating switch main shaft 211, to rotate with described isolating switch main shaft 211, and the other end of described first rotatable parts 713 is flexibly connected with described first limiting plate 712 be located on dividing plate 5.Described operational motion parts comprise the first supporting bracket 7112 and round bar 7111.Described round bar 7111 is coaxially arranged on outside described isolating switch main shaft 211 with described isolating switch main shaft 211, is provided with elastomeric element 71111 between.Also be provided with the first activity bar 71112 in described round bar 7111, the avris of described round bar 7111 is provided with loose slot, in order to hold described first activity bar 71112.Chute is become to coordinate between described first supporting bracket 7112 and dividing plate 5, as as described in the first supporting bracket 7112 chute moving direction be as described in dividing plate 5 moves horizontally direction, described first supporting bracket 7112 and described operational motion parts are near setting, when cabinet door is opened, described first activity bar 71112 is just blocked to prevent described first activity bar 71112 from moving by described first supporting bracket 7112.When cabinet door closes, closed first supporting bracket 7112 that makes of cabinet door moves horizontally, then the first supporting bracket 7112 no longer blocks described first activity bar 71112, now can apply cross force to the elastomeric element 71111 in described operational motion parts, described first activity bar 71112 moves along the loose slot of described round bar 7111, apply revolving force to isolating switch main shaft 211 again, then closed, the earthed switch of isolating switch disconnects.The cooperation of said structure is guaranteed the fail safe operated to prevent misoperation.
Described limit assembly also can comprise the second rotatable parts 714.Described second rotatable parts 714 one end and described switch lever 73 and described separating brake handle 74 are connected, the other end and described second supporting bracket 7113 of described second rotatable parts 714 are connected, after utilizing energy accumulation handle 72 to complete energy storage, switch lever 73 action, makes described second rotatable parts 714 drive described second supporting bracket 7113 to move along the movable circumference plate 7115 be arranged on described dividing plate 2.Chute is become to coordinate between the same and described dividing plate 5 of described second supporting bracket 7113, as as described in the second supporting bracket 7113 chute moving direction be as described in vertical direction on dividing plate 5 move, described first activity bar 71112 is just blocked to prevent described first activity bar 71112 from moving by described second supporting bracket 7113, and cabinet door is locked simultaneously.When described separating brake handle action, described second rotatable parts 714 drive described second supporting bracket 7113 to move along described movable circumference plate 7115 with above-mentioned rightabout, and described first activity bar 71112 is no longer blocked by described second supporting bracket 7113.When the elastomeric element 71111 in described operational motion parts is subject to cross force, described first activity bar 71112 moves along the loose slot of described round bar 7111, then applies revolving force to isolating switch main shaft 211, then isolating switch disconnects, and earthed switch closes.
Wherein, described first supporting bracket 7112 comprises the first lock part 7112a and the second lock part 7112b, the first spring is connected with between described first lock part 7112a and the second lock part 7112b, this first supporting bracket 7112 coordinates with cabinet door, when cabinet door closes, described first lock part 7112 coordinates with the blade type head of cabinet door and realizes with cabinet door lock fixed, and described first supporting bracket 7112 horizontal direction on dividing plate 2 moves simultaneously, makes described second lock part 7112b no longer block the first activity bar 71112; When cabinet door is opened, utilize spring Rapid reset, make the first lock part 7112b block the first activity bar 71112.In addition, described limit assembly also can comprise the 3rd rotatable parts 715.Described 3rd rotatable parts 715 comprise fixed part, it to be fixedly installed on described isolating switch main shaft 211 and together to rotate with described isolating switch main shaft 211, described frame 4 there is a big spring 7151, described big spring 7151 is connected by the first linkage board with described fixed part, when the 3rd rotatable parts 715 rotate, stretched by the first linkage board or compression big spring 7151, big spring 7151 saves as the energy of next operation, when the manual operation of compounding practice bar, the closed or disconnection between disconnecting link effectively can be completed more fast.Wherein, described fixed part is the endless member with opening, described endless member be circumferentially provided with the first extension block and the second extension block, the distance of described first extension block and described second extension block circumferencial direction is described operational motion component actuation distance, namely isolating switch main shaft 211 rotates between described first extension block and described second extension block, and two-end-point is respectively the state point that isolating switch closes or isolating switch disconnects.
First rotatable parts 713 described in such scheme are all one with described isolating switch main shaft 211 with the parts rotated, and its one end is bolted on described isolating switch main shaft 211, rotates with described isolating switch main shaft 211; The other end is flexibly connected with described first limiting plate 712 by connecting rod or band hook part.Described first limiting plate 712 can comprise coupling part 7121 and buckle 7122, described first limiting plate 712 coordinates with same chute between described dividing plate 5, make buckle 7122 extreme lower position of described first limiting plate 712 just concordant with guidance panel 8 peak, this guidance panel 8, for being arranged on the metal decking on dividing plate, which is provided with the first supporting bracket 7112, second supporting bracket 7113 and round bar 7111.The coupling part 7121 of described first limiting plate 712 is flexibly connected with described first rotatable parts 713 by the second spring, namely when described isolating switch main shaft 211 rotates, described first rotatable parts 713 rotate, connecting rod or the band hook part of described first rotatable parts 713 affect described second spring generation deformation, move along its chute to make described first limiting plate 712.
In order to improve processing safety, needing, many places cabinet door lock is set fixed.When needing to be serviced, service work time, the on-off switch that first operating personnel operate vacuum switch disconnects vacuum switch, and next utilizes action bars operation action component.When isolating switch closes and the initial condition of earthed switch disconnection, door of switch cabinet closes, first supporting bracket 7112 and the second supporting bracket 7113 are divided into described round bar 7111 both sides, described first supporting bracket 7112 is in the left side of its chute, and described first supporting bracket 7112 utilizes its first lock part 7112a and cabinet door lock to live; Described second supporting bracket 7113 is in the bottom side of its chute, and described first activity bar 71112 is blocked by described second supporting bracket 7113; Described first limiting plate 712 is on the top of its chute, and namely buckle 7122 exceeds described dividing plate 5, and the part fits on buckle and cabinet door realizes locking further.After opening separating brake handle 74, second rotatable parts 714 drive the second supporting bracket 7113 to rotate counterclockwise the top side causing it to move to its chute, the second supporting bracket 7113 is made no longer to block the first activity bar 71112, when utilizing action bars to insert in round bar 7111, apply horizontal force and to the first activity bar 71112, its loose slot along round bar 7111 is moved.When action bars is rotated counterclockwise, described isolating switch main shaft 221 is rotated counterclockwise and disconnects isolating switch 213 and the closed earthed switch be connected by linkage on the one hand; Utilize the first rotatable parts 713 to draw described first limiting plate 712 by spring on the one hand to move along its chute end direction, the buckle 7112 of described first limiting plate 712 moves to dividing plate 5 peak and stops, and can remove the lock-out state of the first limiting plate 712 and cabinet door; Utilizing the 3rd rotatable parts 715 by the first linkage board stretching big spring 7151 on the one hand, storing enough energy for closing isolating switch 213-disconnection earthed switch next time.When after taking-up action bars, described isolating switch main shaft 221 is fixed on postrotational position, cabinet door can be opened, because the blade type head on cabinet door is by relativity shift Position Control with coordinating of the first lock part 7112a in the first supporting bracket 7112, namely the first lock part 7112 is not just to setting with blade type head, there is relativity shift position between the two, operator opens cabinet behind the door, described first supporting bracket 7112 resets by the first spring action, namely described first supporting bracket 7112 blocks described first activity bar 71112, in order to avoid the misoperation when cabinet door is opened.When needs close isolating switch again, successively closing switch cabinet door, update bar turning clockwise carry out isolating switch closed-earthed switch opening operation, the structure counteragent now linked because of rotation, finally get back to initial condition, the energy storage of recycling energy accumulation handle 72, by switch lever 73, second supporting bracket 7113 is blocked the first activity bar 71112, above-mentioned many places cabinet door lock is fixed, further increases processing safety and extends the plant maintenance cycle.Wherein energy accumulation handle 72 operation makes energy-stored spring energy storage, and to be supplied to switch lever 73 and separating brake handle 74 action, energy storage linked manner is similar or identical with existing switch cubicle operating mechanism; Switch lever 73 and separating brake handle 74 action realize the second rotatable parts 714 clockwise and rotate counterclockwise respectively, and the second rotatable parts 714 drive the second supporting bracket 7113 respectively along its chute and move up downwards then.
Embodiment recited above is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that this area ordinary person makes technical scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.

Claims (10)

1. the switch cubicle with interlock, it is characterized in that, comprise low-voltage compartment (1), high pressure compartment (2), operating mechanism (7), described high pressure compartment (2) is followed successively by Disconnecting switch unit, vacuum switch unit, earthed switch unit, primary element from top to bottom; Described Disconnecting switch unit and described earthed switch unit are connected by linkage (6), described operating mechanism (7) and realize interlocked brake between described Disconnecting switch unit and described earthed switch unit three.
2. the switch cubicle of band interlock according to claim 1, is characterized in that, described Disconnecting switch unit comprises isolating switch main shaft (211), the first insulated tension pole (212), isolating switch (213), the first insulated column (214); Described earthed switch unit comprises earthing (232), grounding switch main shaft (231), the second insulated column (233); Described grounding switch main shaft (231) and described isolating switch main shaft (211) are connected by described linkage.
3. the switch cubicle of band interlock according to claim 2, is characterized in that, described linkage comprises the second linkage board (61), portable plate (62), stock (63), the 3rd linkage board (64), four-axle linkage plate (65); Described linkage is arranged in described frame (4) along y direction, described second linkage board (61) and described isolating switch main shaft (211) are connected, and connecting described portable plate (62), described stock (63), described 3rd linkage board (64), described four-axle linkage plate (65) according to this, described four-axle linkage plate (65) and described grounding switch main shaft (231) are connected.
4. the switch cubicle of band interlock according to claim 2, it is characterized in that, described vacuum switch unit comprises the second upper connecting terminal (2222a), the second pole (2223), the second vacuum packet (2224), vacuum switch main shaft (2212), the second insulated tension pole (2225), the second connecting lever (2226), the second insulated support (2227), insulating knockout pin (2228), release (22293), fuse base (22291), fuse (2229), the second sealing insulating barrier, the second lower connecting terminal (2222b); Described vacuum switch unit connects described isolating switch by described upper connecting terminal, described second upper connecting terminal (2222a) connects successively and is located at the second vacuum packet (2224) in described second pole (2223) and insulated tension pole described in second, described second vacuum packet (2224) and described second insulated tension pole (2225) and all connect in shake-up mode between described second insulated tension pole (2225) and described second connecting lever (2226), described second connecting lever (2226) and described vacuum switch main shaft (2212) are connected; Described fuse (2229) is carried in described fuse base (22291), one end is connected between described second vacuum packet (2224) and described second insulated tension pole (2225) by described second sealing insulating barrier (22292), and the other end connects by described release (22293) described second insulated support (2227) and described insulating knockout pin that are connected with described second pole (2223) respectively.
5. the switch cubicle of band interlock according to claim 2, its feature is being, described vacuum switch unit comprises the first upper connecting terminal, the first pole (2213), the first vacuum packet (2214), vacuum switch main shaft (2212), the 3rd insulated tension pole (2215), the first connecting lever (2216), the first insulated support (2217), the first sealing insulating barrier (2219), busbar (2218), the first lower connecting terminal (2212b), described vacuum switch unit connects described isolating switch by described first upper connecting terminal (2212a), described first upper connecting terminal (2212a) connects successively and is located at the first vacuum packet (2214) in described first pole (2213) and described 3rd insulated tension pole (2215), described first vacuum packet (2214) and described 3rd insulated tension pole (2215) and all connect in shake-up mode between described 3rd insulated tension pole (2215) and described first connecting lever (2216), described first connecting lever (2216) and described vacuum switch main shaft (2212) are connected, described busbar (2218) one end is connected between described first vacuum packet (2214) and described 3rd insulated tension pole (2215) by described first sealing insulating barrier (2219), and the other end is connected with described first pole (2213) by described first insulated support (2217).
6. the switch cubicle of band interlock according to claim 1, it is characterized in that, described operating mechanism comprises and isolating switch and the earthed switch one limit assembly of interlocked brake, switch lever (73), separating brake handle (74), energy accumulation handle (72) and energy-stored spring; Described operating mechanism is arranged on the dividing plate (5) between frame (4) in switch cubicle and cabinet door.
7. the switch cubicle of band interlock according to claim 6, is characterized in that, described limit assembly comprises operation hand lever action component, the first rotatable parts (713) and the first limiting plate (712); Described operation hand lever action component and described isolating switch main shaft (211) are connected; Described first rotatable parts (713) one end is fixedly connected with described isolating switch main shaft (211), and the other end is flexibly connected with described first limiting plate (712) be arranged on described dividing plate (5).
8. the switch cubicle of band interlock according to claim 7, is characterized in that, described operational motion parts comprise the first supporting bracket (7112) and round bar (7111); Described round bar (7111) and isolating switch main shaft (211) are coaxially arranged, elastomeric element (71111) is provided with along the axis direction of described isolating switch main shaft (211) between described round bar (7111) and described isolating switch main shaft (211), be provided with the first activity bar (71112) acted on by described elastomeric element (71111) in described round bar (7111), the avris of described round bar (7111) offers loose slot in order to hold described first activity bar (71112); Chute is become to coordinate between described first supporting bracket (7112) and described dividing plate (5), and described first supporting bracket (7112) is arranged on the side of described round bar (7111), described first supporting bracket (7112) and described first activity bar (71112) realize dynamic cooperation.
9. the switch cubicle of band interlock according to claim 8, is characterized in that, described limit assembly also comprises the second rotatable parts (714); Described operational motion parts also comprise the second supporting bracket (7113); One end of described second rotatable parts (714) is connected with described switch lever (72) and described separating brake handle respectively, and the other end and described second supporting bracket (7113) of described second rotatable parts (714) are connected; Chute is become to coordinate between described second supporting bracket (7113) and described dividing plate (5), and described second supporting bracket (7113) is arranged on the opposite side of described round bar (7111), described second supporting bracket (7113) and described first activity bar (71112) realize dynamic cooperation.
10. the switch cubicle of band interlock according to claim 8, it is characterized in that, described operational motion parts also comprise the 3rd supporting bracket (7114), chute is become to coordinate between described 3rd supporting bracket (7114) and described dividing plate (5), and described 3rd supporting bracket (7114) is arranged on the side of described first supporting bracket (7112), described 3rd supporting bracket (7114) is connected by the first spring with between described first supporting bracket (7112).
CN201410615130.6A 2014-11-05 2014-11-05 A kind of switch cubicle of band interlock Active CN104319133B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4400089B2 (en) * 2003-05-08 2010-01-20 富士電機システムズ株式会社 Sealed gas insulated switchgear
CN102543516A (en) * 2012-01-10 2012-07-04 昆明东控电器成套设备有限公司 Five-prevention system of high-voltage switch cabinet
CN203312629U (en) * 2013-06-28 2013-11-27 浙江天润电力科技有限公司 Combined electric appliance with isolation switch, vacuum circuit breaker and grounding switch
CN103996989A (en) * 2014-06-10 2014-08-20 何华斌 450 mm-wide small switch cabinet
CN204167155U (en) * 2014-11-05 2015-02-18 湖州电力设备成套有限公司 A kind of switch cubicle with interlock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4400089B2 (en) * 2003-05-08 2010-01-20 富士電機システムズ株式会社 Sealed gas insulated switchgear
CN102543516A (en) * 2012-01-10 2012-07-04 昆明东控电器成套设备有限公司 Five-prevention system of high-voltage switch cabinet
CN203312629U (en) * 2013-06-28 2013-11-27 浙江天润电力科技有限公司 Combined electric appliance with isolation switch, vacuum circuit breaker and grounding switch
CN103996989A (en) * 2014-06-10 2014-08-20 何华斌 450 mm-wide small switch cabinet
CN204167155U (en) * 2014-11-05 2015-02-18 湖州电力设备成套有限公司 A kind of switch cubicle with interlock

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