CN104319164B - A kind of vacuum load switch - Google Patents
A kind of vacuum load switch Download PDFInfo
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- CN104319164B CN104319164B CN201410615129.3A CN201410615129A CN104319164B CN 104319164 B CN104319164 B CN 104319164B CN 201410615129 A CN201410615129 A CN 201410615129A CN 104319164 B CN104319164 B CN 104319164B
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- disconnecting switch
- main shaft
- switch
- vacuum
- switch unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
- H01H2009/065—Battery operated hand tools in which the battery and the switch are directly connected
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of vacuum load switch, belongs to high-voltage electrical equipment manufacturing technology field.The present invention includes vacuum switch unit, Disconnecting switch unit, earthed switch unit and operating mechanism；Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are longitudinally arranged successively in vacuum load switch frame, described Disconnecting switch unit and described earthed switch unit are realized being connected by linkage, are arranged between the described operating mechanism on the dividing plate of described frame side and described Disconnecting switch unit and described earthed switch unit three and realize interlocked brake.Present configuration is simple, has earthed switch disconnecting switch and is integrated link gear so that this vacuum load switch volume is little, it is simple to installs and safeguards, and the limit assembly on operating mechanism and described link gear interlocked brake, flexible operation, failure rate is low.
Description
Technical field
The present invention relates to high-voltage electrical equipment manufacturing technology field, especially a kind of vacuum load switch.
Background technology
Vacuum load switch is applicable to the distribution systems such as industrial and mining establishment, skyscraper, residential quarters, school and box-type substation, and structure is complex.The general all volume ratios of conventional vacuum load switch are relatively big, cause power distribution cabinet excessively to take up room, and have the operating mechanism of complexity, and operator need individually operated vacuum switch, disconnecting switch, earthed switch, and the most individually operated cabinet door lock is fixed.So complex operation, if operator operate unskilled meeting and cause operational error, malfunction, installs and maintenance workload is big, and equipment failure rate is high.Patent No. CN201010196486.2 discloses a kind of vacuum load switch without disconnecting switch, in use there is potential safety hazard, if additionally installing disconnecting switch additional, then complexity is installed and operating mechanism controls switch and increases, further increase maintenance workload.
Summary of the invention
The present invention is directed to the deficiency that prior art exists, it is provided that a kind of integrative-structure and be easily installed, safeguard, and there is the vacuum load switch of interlocked brake characteristic.
The technical scheme is that a kind of vacuum load switch of offer, it is characterised in that include vacuum switch unit, Disconnecting switch unit, earthed switch unit and operating mechanism；Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are longitudinally arranged successively in vacuum load switch frame, described Disconnecting switch unit and described earthed switch unit are realized being connected by linkage, are arranged between the described operating mechanism on the dividing plate of described frame side and described Disconnecting switch unit and described earthed switch unit three and realize interlocked brake.
This vacuum load switch has Disconnecting switch unit-earthed switch unit one link gear so that vacuum load switch volume is little, it is simple to installs, overhaul, safeguard；And also there is the operating mechanism of interlocked brake effect so that when operator operate operating mechanism, disconnecting switch disconnects (or Guan Bi), earthed switch Guan Bi (or disconnection), and cabinet door unlocks or locking.
Preferred as the present invention, described Disconnecting switch unit includes disconnecting switch main shaft, the first insulated tension pole, disconnecting switch, the first insulated column；Described first insulated column is fixed in frame and is flexibly connected with described disconnecting switch, and described disconnecting switch is connected with described disconnecting switch main shaft by described first insulated tension pole.
Preferred as the present invention, described vacuum switch unit includes upper connecting terminal, pole, vacuum packet, vacuum switch main shaft, the second insulated tension pole, connecting lever, insulated support, insulating knockout pin, electrical apparatus release, fuse base, fuse, sealing insulating barrier, lower connecting terminal；Described vacuum switch unit connects described disconnecting switch by described upper connecting terminal, described upper connecting terminal is sequentially connected with the vacuum packet being located in described pole and described second insulated tension pole, all connecting in shake-up mode between described vacuum packet and described second insulated tension pole and described second insulated tension pole and described connecting lever, described connecting lever is connected with described vacuum switch main shaft；Described fuse is carried in described fuse base, one end is connected between described vacuum packet and described second insulated tension pole by described sealing insulating barrier, and the other end connects the described insulated support being built in described pole and the described insulating knockout pin being connected with described pole respectively by described electrical apparatus release.
Preferred as the present invention, described earthed switch unit includes earthing, grounding switch main shaft, the second insulated column；Described grounding switch main shaft is connected by described linkage with described disconnecting switch main shaft.
Preferred as the present invention, described linkage includes 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 is connected with described disconnecting switch main shaft, and connecting described portable plate, described stock, described 3rd linkage board, described four-axle linkage plate according to this, described four-axle linkage plate is connected with described grounding switch main shaft.
Preferred as the present invention, described operating mechanism includes and disconnecting switch and the earthed switch one limit assembly of interlocked brake, switch lever, separating brake handle, energy accumulation handle and energy-stored spring.
Preferred as the present invention, described limit assembly includes operational motion parts, the first rotatable parts and the first limiting plate；Described operational motion parts are connected with described disconnecting switch main shaft；Described first rotatable parts one end is fixing with described disconnecting switch main shaft to be connected, and the other end is flexibly connected with described first limiting plate being arranged on described dividing plate.
Preferred as the present invention, described operational motion parts include the first gripper shoe and round bar；Described round bar is coaxially disposed with disconnecting switch main shaft, between described round bar and described disconnecting switch main shaft, the axis direction along described disconnecting switch main shaft is provided with elastomeric element, being 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 accommodate described first activity bar；Becoming chute to coordinate between described first gripper shoe and described dividing plate, and described first gripper shoe is arranged on the side of described round bar, described first gripper shoe realizes dynamic cooperation with described first activity bar.
Preferred as the present invention, described limit assembly also includes the second rotatable parts；Described operational motion parts include the first gripper shoe, round bar and the second gripper shoe；Described round bar is coaxially disposed with disconnecting switch main shaft, between described round bar and described disconnecting switch main shaft, the axis direction along described disconnecting switch main shaft is provided with elastomeric element, being 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 accommodate described first activity bar；Becoming chute to coordinate between described first gripper shoe and described dividing plate, and described first gripper shoe is arranged on the side of described round bar, described first gripper shoe realizes dynamic cooperation with described first activity bar；One end of described second rotatable parts is connected with described switch lever and separating brake handle respectively, and the other end of described second rotatable parts is connected with described second gripper shoe；Becoming chute to coordinate between described second gripper shoe and described dividing plate, and described second gripper shoe is arranged on the opposite side of described round bar, described second gripper shoe realizes dynamic cooperation with described first activity bar.
Preferred as the present invention, described limit assembly also includes the 3rd rotatable parts, described 3rd rotatable parts include the fixed component being fixedly installed on described disconnecting switch main shaft, and described fixed component is connected with the big spring being fixed in described frame by the first linkage board；Described fixed component is to have the endless member of opening, and the circumferencial direction of described endless member is provided with the first extension block and the second extension block, and described first extension block is described operational motion component actuation distance with the distance of described second extension block circumferencial direction.
The method have the advantages that
Vacuum load switch simple in construction of the present invention, has earthed switch-disconnecting switch and is integrated link gear so that this vacuum load switch volume is little, it is easily installed maintenance, and the limit assembly on operating mechanism and described link gear interlocked brake, flexible operation, failure rate is low.
Accompanying drawing explanation
Fig. 1 is the structure chart of vacuum load switch of the present invention；
Fig. 2 is the topology view in A direction in Fig. 1；
Fig. 3 is the local structural graph of the limit assembly in the vacuum load switch Central Shanxi Plain of the present invention.
In figure, 1-frame；2-dividing plate；3-vacuum switch unit；31-vacuum switch main shaft；32a-upper connecting terminal；32b-lower connecting terminal；33-pole；34-vacuum packet；35-the second insulated tension pole；36-connecting lever；37-insulated support；38-insulating knockout pin；39-fuse；391-fuse base；392-sealing insulating barrier；393-electrical apparatus release；4-Disconnecting switch unit；41-disconnecting switch main shaft；42-the first insulated tension pole；43-disconnecting switch；44-the first insulated column；5-earthed switch unit；51-grounding switch main shaft；52-earthing；53-the second insulated column；6-linkage；61-the second linkage board；62-portable plate；63-stock；64-the 3rd linkage board；65-four-axle linkage plate；Fixed component on 66-linkage；7-operating mechanism；71-limit assembly；711-operational motion parts；7111-round bar；71111-elastomeric element；71112-the first activity bar；7112-the first gripper shoe；7112a-the first lock part；7112b-the second lock part；7113-the second gripper shoe；7115-activity circumference plate；712-the first limiting plate；7121-coupling part；7122-buckle；713-the first rotatable parts；714-the 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.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1,2 structural representations showing vacuum load switch of the present invention.This vacuum load switch is for including cabinet, cabinet door, the switch cubicle of dividing plate 2.This vacuum load switch includes vacuum switch unit, Disconnecting switch unit, earthed switch unit and operating mechanism.Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are longitudinally arranged successively in the frame 1 of vacuum load switch, described Disconnecting switch unit and described vacuum switch unit are connected by linkage, and described linkage and described operating mechanism are separately positioned on the left and right avris of described frame 1.Being arranged so as to so that vacuum load switch is integrally mounted in same frame 1, volume is little, it is simple to operator install, safeguard, overhaul.
Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are sequentially connected electrically, and when vacuum load switch operates, carry out cut-offfing short circuit current and reclosing work.Described Disconnecting switch unit includes disconnecting switch main shaft the 41, first insulated tension pole 42, disconnecting switch the 43, first insulated column 44.Described vacuum switch unit includes upper connecting terminal 32a, pole 33, vacuum packet 34, vacuum switch main shaft the 31, second insulated tension pole 35, connecting lever 36, insulated support 37, insulating knockout pin 38, electrical apparatus release 393, fuse base 391, fuse 39, sealing insulating barrier 392, lower connecting terminal 32b.Described earthed switch unit includes earthing 52, grounding switch main shaft the 51, second insulated column 53.Described first insulated column 44 is fixed in frame 1 and is flexibly connected with described disconnecting switch 43, and described disconnecting switch 43 is connected with described disconnecting switch main shaft 41 by described first insulated tension pole 42；Described first insulated tension pole 42 becomes angle to coordinate with described disconnecting switch 43 with described disconnecting switch main shaft 41 respectively, and when disconnecting switch main shaft 41 rotates, disconnecting switch 43 is outwards disengaged by linkage power or inwardly closes by described first insulated tension pole 42.Described disconnecting switch 43 connects described disconnecting switch 43 by upper connecting terminal 32a, described upper connecting terminal 32a is sequentially connected with the vacuum packet 34 being located in described pole 33 and described second insulated tension pole 35, all connecting in shake-up mode between described vacuum packet 34 and described second insulated tension pole 35 and described second insulated tension pole 35 and described connecting lever 36, described connecting lever 36 is connected with described vacuum switch main shaft 31；Described fuse 39 is carried in described fuse base 391, one end is connected between described vacuum packet 34 and described second insulated tension pole 35 by described sealing insulating barrier 392, and the other end connects the described insulated support 37 being built in described pole 33 and the described insulating knockout pin 38 being connected with described pole 33 respectively by described electrical apparatus release 393.When rotation vacuum switch spindle 32 is with Guan Bi vacuum switch, revolving force contact in connecting lever 36 passes to described second insulated tension pole 35, the contact in top makes vacuum packet 34 on its contact are connected by described vacuum switch main shaft 32, now vacuum switch Guan Bi.After being sequentially completed disconnecting switch 43, vacuum switch closed procedure, the current-carrying part-fuse 39-lower connecting terminal 32b in disconnecting switch 43-upper connecting terminal 32a-vacuum packet 34-sealing insulating barrier 392 constitutes current path.When a failure occurs it, fuse 39 is disengaged by de-mouthpart and disconnects, and disconnects vacuum switch arc extinguishing successively, disconnects disconnecting switch 43.The wherein disconnection of earthed switch, Guan Bi realize with Guan Bi, the disconnection of disconnecting switch 43.
In order to improve motility and the safety of operation, the link gear of one disconnecting switch 43-earthed switch is set.The linkage of disconnecting switch 43 and earthed switch is to be realized by linkage, solves disconnecting switch 43 and the problem of earthed switch separate operation in prior art.This linkage includes the second linkage board 61, portable plate 62, stock the 63, the 3rd linkage board 64, four-axle linkage plate 65.Described linkage is arranged on the side of described frame 1 along y direction, and described second linkage board 61 one end is socketed in outside described disconnecting switch main shaft 41, rotate with described disconnecting switch main shaft 41 and action；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 1；The other end of described portable plate 62 is flexibly connected with one end of stock 63；Described stock 63 is long, when disconnecting switch main shaft 41-linkage 6-grounding switch main shaft 51 three links be exempt from stock 63 deviate y direction make transmission power deflection or transmission power diminish, and then make when disconnecting disconnecting switch 43, earthed switch cannot be on normal occlusion, then need to arrange fixed component 66 at stock 63 local location so that stock 63 keeps the y direction along described frame 1 to arrange；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 51.Wherein, described second linkage board 61 becomes angle to be connected with described portable plate 62, and described 3rd linkage board 64 becomes angle to be connected with described four-axle linkage plate 65.When disconnecting switch main shaft 41 rotates counterclockwise, disconnecting switch 43 disconnects, the revolving force of disconnecting switch main shaft 41 drives described linkage action, pass sequentially through the second linkage board 61, portable plate 62, stock the 63, the 3rd linkage board 64, four-axle linkage plate 65 transmit revolving force so that described four-axle linkage plate 65 drives grounding switch main shaft 51 to rotate and the earthed switch that closes；When disconnecting switch main shaft 41 turns clockwise, disconnecting switch 43 closes, the revolving force drivening rod mechanism counteragent of disconnecting switch main shaft 41, drives grounding switch main shaft 51 to reversely rotate and disconnect earthed switch.
Described operating mechanism is arranged on the dividing plate 2 of frame 1 side, and it includes the energy accumulation handle 72 of vacuum switch, separating brake handle 74, switch lever 73, separating brake indicator, combined floodgate indicator, energy-stored spring and energy storage instruction and the limit assembly of disconnecting switch 43-earthed switch-cabinet door one interlocked brake.This limit assembly is under energy accumulation handle 72, separating brake handle 74 and switch lever 73 interoperation, described disconnecting switch 43 and earthed switch link gear then interlocked brake, to realize grounding switch tripping and switch cubicle locking while disconnecting switch 43 is closed a floodgate, and while disconnecting switch 43 separating brake, earthed switch closes a floodgate and switch cubicle is opened.
As Fig. 1,3, described limit assembly includes operational motion parts the 711, first rotatable parts 713 and the first limiting plate 712.Described operational motion parts 711 run through on the dividing plate 2 being arranged between cabinet and cabinet door, described operational motion parts 711 are connected with described disconnecting switch main shaft 41, described first rotatable parts 713 one end is fixing with described disconnecting switch main shaft 41 to be connected, to rotate with described disconnecting switch main shaft 41, and the other end of described first rotatable parts 713 is flexibly connected with described first limiting plate 712 being located on dividing plate 2.Described operational motion parts 711 include the first gripper shoe 7112 and round bar 7111.Described round bar 7111 is co-axially located at outside described disconnecting switch main shaft 41 with described disconnecting switch main shaft 41, is provided with elastomeric element 71111 between.Being additionally 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 accommodate described first activity bar 71112.Chute is become to coordinate between described first gripper shoe 7112 and dividing plate 2, described first gripper shoe 7112 chute moving direction be as described in move horizontally direction on dividing plate 2, described first gripper shoe 7112 and described operational motion parts 711 are against setting, when cabinet door is opened, described first activity bar 71112 just is blocked to prevent described first activity bar 71112 from moving by described first gripper shoe 7112.When cabinet door closes, the Guan Bi of cabinet door makes the first gripper shoe 7112 move horizontally, then the first gripper shoe 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, again disconnecting switch main shaft 41 is applied revolving force, then disconnecting switch Guan Bi, earthed switch disconnect.The cooperation of said structure guarantees the safety of operation, prevents maloperation.
Described limit assembly also includes the second rotatable parts 714.Described second rotatable parts 714 one end is connected with described switch lever 73 and described separating brake handle 74, the other end of described second rotatable parts 714 is connected with described second gripper shoe 7113, after utilizing energy accumulation handle 72 to complete energy storage, switch lever 73 action so that described second rotatable parts 714 drive described second gripper shoe 7113 to move along the movable circumference plate 7115 being arranged on described dividing plate 2.Chute is become to coordinate between the described second same and described dividing plate 2 of gripper shoe 7113, described second gripper shoe 7113 chute moving direction be as described in vertical direction on dividing plate 2 move, described first activity bar 71112 just is blocked to prevent described first activity bar 71112 from moving by described second gripper shoe 7113, and cabinet door is locked simultaneously.When described separating brake handle action, described second rotatable parts 714 drive described second gripper shoe 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 gripper shoe 7113.When the elastomeric element 71111 in described operational motion parts is by cross force, described first activity bar 71112 moves along the loose slot of described round bar 7111, then disconnecting switch main shaft 41 is applied revolving force, then disconnecting switch disconnects, and earthed switch closes.
Wherein, described first gripper shoe 7112 includes the first lock part 7112a and the second lock part 7112b, connect between described first lock part 7112a and the second lock part 7112b and have the first spring, this first gripper shoe 7112 coordinates with cabinet door, when cabinet door closes, described first lock part 7112 coordinates realization fixed with cabinet door lock with the blade type head of cabinet door, and the most described first gripper shoe 7112 horizontal direction on dividing plate 2 moves so that described second lock part 7112b no longer blocks the first activity bar 71112；When cabinet door is opened, utilize spring Rapid reset so that the first lock part 7112b blocks the first activity bar 71112.
It addition, described limit assembly may also include the 3rd rotatable parts.Described 3rd rotatable parts include fixed component, it is fixedly installed on described disconnecting switch main shaft 41 and rotates together with described disconnecting switch main shaft 41, a big spring 7151 is had in described frame 1, described big spring 7151 is connected by the first linkage board with described fixed component, when the 3rd rotatable parts rotate, stretched by the first linkage board or compression big spring 7151, big spring 7151 saves as the energy of next operation, when compounding practice bar manual operation, can the more rapid Guan Bi efficiently accomplished between disconnecting link or disconnection.Wherein, described fixed component is to have the endless member of opening, the circumferencial direction of described endless member is provided with the first extension block and the second extension block, described first extension block is described operational motion parts 711 operating distance with the distance of described second extension block circumferencial direction, namely disconnecting switch main shaft 41 rotates between described first extension block and described second extension block, and two-end-point is respectively the state point that disconnecting switch 43 closes or disconnecting switch 43 disconnects.
First rotatable parts 713 described in such scheme are all one with described disconnecting switch main shaft 41 with the parts rotated, and its one end is bolted on described disconnecting switch main shaft 41, rotates with described disconnecting switch main shaft 41；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 include coupling part 7121 and buckle 7122, described first limiting plate 712 chute as between described dividing plate 2 coordinates, buckle 7122 extreme lower position making described first limiting plate 712 is the most concordant with guidance panel 8 peak, this guidance panel 8 is the metal decking being arranged on dividing plate, which is provided with the first gripper shoe the 7112, second gripper shoe 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 rotate when described disconnecting switch main shaft 41, described first rotatable parts 713 rotate, the connecting rod of described first rotatable parts 713 or band hook part affect described second spring to deform upon, so that described first limiting plate 712 moves along its chute.
In order to improve processing safety, needing, many places cabinet door lock is set fixed.This vacuum load switch is arranged in switch cubicle, when needing to be serviced, service work time, first operator operate the on-off switch of vacuum switch and disconnect vacuum switch, and next utilizes action bars to run operational motion parts 711.When the original state that disconnecting switch 43 closes and earthed switch disconnects, door of switch cabinet closes, first gripper shoe 7112 and the second gripper shoe 7113 are divided into described round bar 7111 both sides, described first gripper shoe 7112 is in the left side of its chute, and described first gripper shoe 7112 utilizes its first lock part 7112a to live with cabinet door lock；Described second gripper shoe 7113 is in the bottom side of its chute, and described first activity bar 71112 is blocked by described second gripper shoe 7113；Described first limiting plate 712 is on the top of its chute, i.e. buckle 7122 exceeds described dividing plate 2, and buckle coordinates realization locking further with the parts on cabinet door.After opening separating brake handle 74, second rotatable parts 714 drive the second gripper shoe 7113 to rotate counterclockwise the top side causing it to move to its chute, the second gripper shoe 7113 is made no longer to block the first activity bar 71112, utilize action bars to insert in round bar 7111, apply horizontal force and make it move along the loose slot of round bar 7111 to the first activity bar 71112.When action bars rotates counterclockwise, described disconnecting switch main shaft 41 is rotated counterclockwise and on the one hand disconnects disconnecting switch 43 and close the earthed switch being connected by linkage；On the one hand utilize the first rotatable parts 713 to draw described first limiting plate 712 by spring to move along its chute end direction, the buckle 7112 of described first limiting plate 712 moves to dividing plate 2 peak and stops, and can release the lock-out state of the first limiting plate 712 and cabinet door；On the one hand utilize the 3rd rotatable parts 715 by the first linkage board stretching big spring 7151, disconnect the earthed switch enough energy of storage for closing disconnecting switch 43-next time.After taking out action bars, described disconnecting switch main shaft 41 is fixed on postrotational position, cabinet door can be opened, because the cooperation of the first lock part 7112a on the blade type head on cabinet door and the first gripper shoe 7112 is to be controlled by relative deviation post, i.e. first lock part 7112 is not just to setting with blade type head, there is relative deviation post between the two, operator opens cabinet behind the door, described first gripper shoe 7112 is resetted by the first spring effect, the most described first gripper shoe 7112 blocks described first activity bar 71112, in order to avoid the maloperation when cabinet door is opened.When needs close disconnecting switch again, closing switch cabinet door, update bar turn clockwise and carry out disconnecting switch Guan Bi-earthed switch opening operation successively, the structure counteragent now linked because of rotation, it is eventually returned to original state, recycling energy accumulation handle 72 energy storage, by switch lever 73, second gripper shoe 7113 being 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 compared with switch cubicle operating mechanism；Switch lever 73 and separating brake handle 74 action realize the second rotatable parts 714 respectively and rotate clockwise and anticlockwise, and the second rotatable parts 714 drive the second gripper shoe 7113 downwardly and upwardly to move along its chute respectively then.
Embodiment described above is only to be described the preferred embodiment of the present invention, is not defined the spirit and scope of the present invention.On the premise of without departing from design concept of the present invention; various modification that technical scheme is made by this area ordinary person and improvement; protection scope of the present invention all should be dropped into, the technology contents that the present invention is claimed, all record in detail in the claims.
Claims (7)
1. a vacuum load switch, it is characterised in that include vacuum switch unit, Disconnecting switch unit, earthed switch unit and operating mechanism；Described Disconnecting switch unit, described vacuum switch unit and described earthed switch unit are longitudinally arranged successively in the frame (1) of vacuum load switch, described Disconnecting switch unit and described earthed switch unit are realized being connected by linkage, are arranged between the described operating mechanism on the dividing plate (2) of described frame (1) side and described Disconnecting switch unit and described earthed switch unit three and realize interlocked brake;Described operating mechanism includes and disconnecting 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 limit assembly includes operational motion parts, the first rotatable parts (713) and the first limiting plate (712)；Described operational motion parts are connected with described disconnecting switch main shaft (41)；Described first rotatable parts (713) one end is fixing with described disconnecting switch main shaft (41) to be connected, and the other end is flexibly connected with described first limiting plate (712) being arranged on described dividing plate (2)；Described operational motion parts (711) include the first gripper shoe (7112) and round bar (7111)；Described round bar (7111) is coaxially disposed with disconnecting switch main shaft (41), between described round bar (7111) and described disconnecting switch main shaft (41), the axis direction along described disconnecting switch main shaft (41) is provided with elastomeric element (71111), being 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 accommodate described first activity bar (71112)；Chute is become to coordinate between described first gripper shoe (7112) and described dividing plate (2), and described first gripper shoe (7112) is arranged on the side of described round bar (7111), described first gripper shoe (7112) realizes dynamic cooperation with described first activity bar (71112).
Vacuum load switch the most according to claim 1, it is characterised in that described Disconnecting switch unit includes disconnecting switch main shaft (41), the first insulated tension pole (42), disconnecting switch, the first insulated column (44)；Described first insulated column (44) is fixed at frame (1) and above and is flexibly connected with described disconnecting switch, and described disconnecting switch is connected with described disconnecting switch main shaft (41) by described first insulated tension pole (42).
Vacuum load switch the most according to claim 2, it is characterized in that, described vacuum switch unit includes upper connecting terminal (32a), pole (33), vacuum packet (34), vacuum switch main shaft (32), the second insulated tension pole (35), connecting lever (36), insulated support (37), insulating knockout pin (38), electrical apparatus release (393), fuse base (391), fuse (39), sealing insulating barrier (392), lower connecting terminal (32b)；Described vacuum switch unit connects described disconnecting switch (43) by described upper connecting terminal (32a), described upper connecting terminal (32a) is sequentially connected with the vacuum packet (34) and described second insulated tension pole being located in described pole (33), all connecting in shake-up mode between described vacuum packet (34) and described second insulated tension pole (35) and described second insulated tension pole (35) and described connecting lever (36), described connecting lever (36) is connected with described vacuum switch main shaft (32)；Described fuse (39) is carried in described fuse base (391), one end is connected between described vacuum packet (34) and described second insulated tension pole (35) by described sealing insulating barrier (392), and the other end connects the described insulated support (37) being built in described pole (33) and the described insulating knockout pin (38) being connected with described pole (33) respectively by described electrical apparatus release (393).
Vacuum load switch the most according to claim 3, it is characterised in that described earthed switch unit includes earthing (52), grounding switch main shaft (51), the second insulated column (53)；Described grounding switch main shaft (51) is connected by described linkage with described disconnecting switch main shaft (41).
5. according to the vacuum load switch described in claim 1 or 2 or 3 or 4, it is characterised in that described linkage includes 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 (1) along y direction, described second linkage board (61) is connected with described disconnecting switch main shaft (41), 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) is connected with described grounding switch main shaft (51).
Vacuum load switch the most according to claim 1, it is characterised in that described limit assembly also includes the second rotatable parts (714)；Described operational motion parts (711) include the first gripper shoe (7112), round bar (7111) and the second gripper shoe (7113)；Described round bar (7111) is coaxially disposed with disconnecting switch main shaft (41), between described round bar (7111) and described disconnecting switch main shaft (41), the axis direction along described disconnecting switch main shaft (41) is provided with elastomeric element (71111), being 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 accommodate described first activity bar (71112)；Chute is become to coordinate between described first gripper shoe (7112) and described dividing plate (2), and described first gripper shoe (7112) is arranged on the side of described round bar (7111), described first gripper shoe (7112) realizes dynamic cooperation with described first activity bar (71112)；One end of described second rotatable parts (714) is connected with described switch lever (73) and separating brake handle (74) respectively, and the other end of described second rotatable parts (714) is connected with described second gripper shoe (7113)；Chute is become to coordinate between described second gripper shoe (7113) and described dividing plate (2), and described second gripper shoe (7113) is arranged on the opposite side of described round bar (7111), described second gripper shoe (7113) realizes dynamic cooperation with described first activity bar (71112).
Vacuum load switch the most according to claim 1, it is characterized in that, described limit assembly also includes the 3rd rotatable parts, described 3rd rotatable parts include the fixed component being fixedly installed on described disconnecting switch main shaft (41), and described fixed component is connected with the big spring (7151) being fixed in described frame (1) by the first linkage board；Described fixed component is to have the endless member of opening, the circumferencial direction of described endless member is provided with the first extension block and the second extension block, and described first extension block is described operational motion parts (711) operating distance with the distance of described second extension block circumferencial direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410615129.3A CN104319164B (en) | 2014-11-05 | 2014-11-05 | A kind of vacuum load switch |
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| CN201410615129.3A CN104319164B (en) | 2014-11-05 | 2014-11-05 | A kind of vacuum load switch |
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| CN104319164A CN104319164A (en) | 2015-01-28 |
| CN104319164B true CN104319164B (en) | 2016-07-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601520A (en) * | 2016-12-28 | 2017-04-26 | 滁州品之达电器科技有限公司 | Interlocking method of interlocked inflatable load switch |
| CN106710949A (en) * | 2016-12-28 | 2017-05-24 | 滁州品之达电器科技有限公司 | Safe inflatable load switch |
| CN109243883B (en) * | 2018-09-04 | 2020-08-25 | 珠海沃顿电气有限公司 | Vacuum load looped netowrk cabinet of isolation linkage |
| CN109166746B (en) * | 2018-09-04 | 2020-07-14 | 珠海沃顿电气有限公司 | Breaking and closing method of isolation linkage vacuum load switch |
| CN109494112B (en) * | 2018-11-28 | 2020-01-17 | 河北科力恒久智能开关有限公司 | Vacuum switch looped netowrk cabinet operating mechanism |
| US11476647B1 (en) * | 2021-04-22 | 2022-10-18 | Rockwell Automation Technologies, Inc. | Maintenance grounding device in motor control center with integrated interlock system |
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