CN108735543A - A kind of tri-station isolating switch - Google Patents
A kind of tri-station isolating switch Download PDFInfo
- Publication number
- CN108735543A CN108735543A CN201710256613.5A CN201710256613A CN108735543A CN 108735543 A CN108735543 A CN 108735543A CN 201710256613 A CN201710256613 A CN 201710256613A CN 108735543 A CN108735543 A CN 108735543A
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- China
- Prior art keywords
- movable plate
- ground connection
- isolated operation
- tri
- disconnecting link
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of tri-station isolating switch, including major loop mechanism, operating mechanism, major loop mechanism sets disconnecting link, combined floodgate static contact, grounding static contact, and disconnecting link realizes three Switch of working position by being rotated between combined floodgate static contact and grounding static contact；The operating mechanism includes rack, the isolated operation axis for realizing operating position divide-shut brake, the ground connection operating shaft for realizing earthing position divide-shut brake, isolated operation axis, ground connection operating shaft are rotatably installed on rack, and the two is mutually sequentially connected by the first transmission component, isolated operation axis or ground connection operating shaft connect the disconnecting link by the second transmission component, to drive disconnecting link to rotate.The present invention contributes to staff to distinguish closing position and ground connection position, the risk for reducing staff's maloperation closing position and being grounded position by the way that the isolated operation axis and ground connection operating shaft is arranged.
Description
Technical field
The present invention relates to a kind of tri-station isolating switch, more particularly to a kind of three stations for preventing three stations to be misused
Disconnecting switch.
Background technology
Tri-station isolating switch is used in switchgear, special as the connection of inlet wire busbar, isolation, feeder equipment ground connection,
There are three functional locations for tool：Disconnecting switch is connected, i.e. closing position, and feeder equipment is made to be connect by electricity with busbar；Disconnecting switch is isolated,
That is isolated bit makes feeder equipment be disconnected with busbar and detaches；Disconnecting switch is grounded, that is, is grounded position and is closed a floodgate, feeder equipment is made not have
In the case of load, ground terminal combined floodgate reliable ground ensures the personal safety of feeder equipment load side installation and staff.It passes
Only there are one operating shafts for the tri-station isolating switch of system, allow operation handle to be inserted and rotated, drive the major loop of disconnecting switch
Three Switch of working position are realized in disconnecting link rotation.This tri-station isolating switch, there are one operating shaft, causes to be grounded position and combined floodgate due to only
Position is easy to be misused.
Invention content
The present invention provides a kind of tri-station isolating switch, can effectively reduce the wind that tri-station isolating switch is misused
Danger.
The technical solution adopted by the present invention to solve the technical problems is：A kind of tri-station isolating switch, including major loop
Mechanism, operating mechanism, major loop mechanism set disconnecting link, combined floodgate static contact, grounding static contact, and disconnecting link by combined floodgate static contact and
Rotation realizes that three Switch of working position, three station include closing position, isolated bit and ground connection position between grounding static contact；The operation machine
Structure includes rack, the isolated operation axis for realizing operating position divide-shut brake, the behaviour of the ground connection for realizing earthing position divide-shut brake
Make axis, isolated operation axis, ground connection operating shaft are rotatably installed on rack, and the two passes through the first transmission component mutually company of transmission
It connects, isolated operation axis or ground connection operating shaft connect the disconnecting link by the second transmission component, to drive disconnecting link to rotate.
Further, the rack is equipped with operation panel, which is equipped with and the isolated operation axis, ground connection
The one-to-one isolated operation hole of operating shaft and ground connection handle hole；Further include operating control device comprising movable plate, machinery are even
Latch mechanism, movable plate are linked by mechanical interlock mechanism and breaker, can be steered when which is released and be opened institute
Isolated operation hole or ground connection handle hole are stated, and movable plate and can be resetted by the first elastic component, to close the isolated operation hole
With ground connection handle hole；
The mechanical interlock mechanism includes lower platen, third transmission component and latching member, and lower platen passes through third transmission group
Part connects latching member, and when breaker closing, lower platen is pressed down, and drives latching member movement with the activity of lockking by transmission component
Plate makes movable plate be maintained at reset state；When breaker open operation, latching member resets and releasing activity plate.
Further, the third transmission component includes driver plate, blocking lever, the first revolving part, the lower platen and biography
Movable plate is slidably mounted on a first support respectively, and the latching member is slidably mounted on disconnecting switch or one second
Frame, driver plate connect latching member by blocking lever, and the first revolving part is rotationally connected with first support, and connects with lower platen activity
It connects, when lower platen is pressed down, drives the rotation of the first revolving part with pushing tow driver plate, latching member is made to lock movable plate；The transmission
Plate, blocking lever, latching member are resetted by dead weight and/or the second elastic component.
Further, the operating control device further includes the bar of locking a door for lockking door of switch cabinet, which can
It is installed on the first support movably forward and backward, and is flexibly connected with first revolving part, when the lower platen is pressed down, the
One revolving part rotate and drive lock a door bar retract to discharge cabinet door, this lock a door bar and can by third elastic component and/or first rotation
Turn part drive to be resetted.
Further, the operating control device further includes shutdown mandril and the second revolving part, and shutdown mandril front and back can move
Be installed on the first support dynamicly, the second revolving part is rotationally connected with the first support, and with the driver plate and shutdown
Mandril is flexibly connected, and shutdown mandril is resetted by the 4th elastic component when the cabinet door of switchgear is opened and the second revolving part is driven to turn
It is dynamic, make the second revolving part pushing tow driver plate, to drive latching member to lock movable plate.
Further, the operating control device further includes latching electromagnet, when busbar charges, the latching electromagnet
Locking bar stretches out and locks the movable plate, and movable plate is made to be maintained at reset state；And/or the isolated operation hole and ground connection are grasped
It is respectively provided with preset shape as hole, the isolated operation axis is inserted into limitation or is grounded the rotation angle of the operation handle of operating shaft
Degree.
Further, further include power driven system for driving disconnecting link rotation, which passes through the 4th transmission
Component is sequentially connected with the isolated operation axis or ground connection operating shaft；The operating control device further includes for controlling the electricity
The microswitch of dynamic system switching electricity, in one during the movable plate opens the isolated operation hole and ground connection handle hole,
The movable plate simultaneously touches the microswitch so that power driven system powers off, the movable plate open the isolated operation hole and
When being grounded another in handle hole, movable plate and one switch press plate of pushing tow drive the switch press plate to touch microswitch, so that
Power driven system powers off.
Further, the movable plate is slidably mounted on the inside of the operation panel, and the operating control device is also
Including a shift fork, which is matched on the outside of operation panel, and across operation panel and the connection movable plate, in movable plate quilt
When release, which, which can be steered, drives movable plate sliding to open the isolated operation hole or ground connection handle hole.
Further, first transmission component include the first gear coaxially to connect with the isolated operation axis and with institute
The second gear that ground connection operating shaft coaxially connects is stated, first gear is engaged with second gear；
Second transmission component includes the main shaft for being installed on the rack, torsion spring mechanism, locking mechanism, connecting lever, connecting lever
The disconnecting link is connected by insulated tension pole, the isolated operation axis or ground connection operating shaft pass through gear-driven assembly and spindle drive
Connection, main shaft drive torsion spring mechanism energy storage by rotation, and torsion spring mechanism, which has stored up, can and trigger locking mechanism unlock, make torsion spring mechanism
Energy is released, torsion spring mechanism can drive connecting lever to rotate by releasing, and connecting lever is made to pull or push insulated tension pole.
Further, the major loop mechanism be three-phase system, have with one-to-one three disconnecting links of three-phase, this three
Disconnecting link is distributed by left, center, right, and the spacing of adjacent disconnecting link is 145-155mm；And/or the major loop mechanism has and can will open
Close the insulating base that cabinet inner cavity is divided into upper interstar connection room and lower interstar connection room, the disconnecting link, combined floodgate static contact, grounding static contact installation
On the insulating base.
Compared to the prior art, the invention has the advantages that：
1, the setting of the isolated operation axis and ground connection operating shaft contributes to staff to distinguish closing position and ground connection position,
The risk for reducing staff's maloperation closing position and being grounded position.
2, the setting of the movable plate, capable of making isolated operation hole and ground connection handle hole, at most only there are one opened every time
It opens, avoids two handle holes from constantly keeping it turning on and cause staff to obscure and maloperation occurs, to further decrease work
The risk of three station of personnel's maloperation；The movable plate is also linked by the mechanical interlocks with breaker so that
When breaker closing, movable plate is lockable and can not be steered and open any one handle hole, only breaker open operation when, it is living
Movable plate is just released, and when to avoid breaker closing, tri-station isolating switch is operated.
3, the setting of the shutdown mandril and the second revolving part, can be when the cabinet door of switchgear be opened, latching activity
Plate avoids movable plate from being steered and opens isolated operation hole or ground connection handle hole, to avoid staff in cabinet door opening state
The danger got an electric shock under state because operating tri-station isolating switch.
4, the setting of the latching electromagnet can lock the movable plate, movable plate avoided to be grasped when busbar charges
Control and open isolated operation hole or ground connection handle hole, to avoid staff under cabinet door open state because operation three stations every
Leave the danger closed and got an electric shock.
5, the setting of the microswitch and switch press plate can make three when movable plate opens any one handle hole
The power driven system of station disconnecting switch powers off, and is manually operated when to realize electric operating preferential.
6, the major loop mechanism is three-phase system, has and is pressed with one-to-one three disconnecting links of three-phase, three disconnecting links
Left, center, right are distributed, and the spacing of adjacent disconnecting link is 145-155mm, makes compact overall structure, realizes the miniaturization of switchgear, and
Installation can be combined with 12kV vacuum circuit breakers.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But three station of one kind isolation of the present invention
Switch is not limited to embodiment.
Description of the drawings
Fig. 1 is the D structure schematic diagram of the present invention；
Fig. 2 is the front view of the present invention；
Fig. 3 is the vertical view of the present invention；
Fig. 4 is the structural schematic diagram of the major loop mechanism of the present invention；
Fig. 5 is the structural schematic diagram of the operating mechanism of the present invention；
Fig. 6 is the decomposition diagram of the operating mechanism of the present invention；
Fig. 7 is the decomposition diagram (exploded) of the operating control device of the present invention；
Fig. 8 is the D structure schematic diagram of the operating control device of the present invention；
Fig. 9 is the rearview of the operating control device of the present invention；
Figure 10 is the right view of the operating control device of the present invention；
Figure 11 is the close-up schematic view of Fig. 9；
Figure 12 is the close-up schematic view of Figure 10.
Specific implementation mode
Embodiment refers to shown in Fig. 1-Figure 12, a kind of tri-station isolating switch of the invention, including major loop mechanism
60, operating mechanism 70, major loop mechanism 60 sets disconnecting link 61, combined floodgate static contact 62, grounding static contact 63, and disconnecting link 61 is by closing
Three Switch of working position are realized in rotation between lock static contact 62 and grounding static contact 63, which includes closing position 64, isolated bit 65
With ground connection position 66；The operating mechanism 70 include rack 71, for realizing operating position divide-shut brake isolated operation axis 74, be used for
It is grounded the ground connection operating shaft 75 of position divide-shut brake, isolated operation axis 74, ground connection operating shaft 75 are rotatably installed on rack
71, and the two is mutually sequentially connected by the first transmission component, isolated operation axis 74 or ground connection operating shaft 75 pass through the second transmission group
Part connects the disconnecting link 61, to drive disconnecting link 61 to rotate.
In the present embodiment, the major loop mechanism 60 be three-phase system, have with one-to-one three disconnecting links 61 of three-phase,
Three disconnecting links 61 are distributed by left, center, right, and the spacing of adjacent disconnecting link 61 is 145-155mm, takes preferred values 150mm, such as Fig. 2
It is shown.The maximum length of the present invention is about 1040mm, and maximum width is about 460mm, as shown in Figure 3.The major loop mechanism 60
With the insulating base 67 that switchgear inner cavity can be divided into upper interstar connection room and lower interstar connection room, the disconnecting link 61, combined floodgate static contact
62, grounding static contact 63 is mounted on the insulating base 67.Specifically, as shown in figure 4, insulating base 67 is equipped with equipped with claw type
Supporting rack 68, combined floodgate static contact 62, grounding static contact 63 are fixed on the supporting rack 68；67 front of insulating base is equipped with one
Support base 610 is rotatablely equipped with merogenesis axis 69 on the support base 610, the merogenesis axis 69 and three 61 phases of disconnecting link in left-right direction
Connection, the rotation axis as three disconnecting links 61.
In the present embodiment, as shown in Figure 5, Figure 6, first transmission component includes and 74 coaxial phase of the isolated operation axis
The first gear 76 connect and the second gear 77 coaxially to connect with the ground connection operating shaft 75, first gear 76 and second gear 77
Engagement.Second transmission component includes the main shaft 78 for being installed on the rack 71, torsion spring mechanism 79, locking mechanism 710, connecting lever
72, connecting lever 72 connects the disconnecting link 61 by insulated tension pole 71, the isolated operation axis 74 (or can also be ground connection operating shaft
75) it is sequentially connected by gear-driven assembly and main shaft 78, main shaft 78 drives 79 energy storage of torsion spring mechanism, torsion spring mechanism by rotation
79 have stored up and can and trigger the unlock of locking mechanism 710, make torsion spring mechanism 79 release can, torsion spring mechanism 79 can drive 72 turns of connecting lever by releasing
It is dynamic, so that connecting lever 72 is pulled or push insulated tension pole 73.The gear-driven assembly includes coaxially connecting with isolated operation axis 74
First bevel gear 711, the second bevel gear 712 coaxially to connect with main shaft 78, the first bevel gear 711 are nibbled with the second bevel gear 712
It closes.
In the present embodiment, the invention also includes the power driven system 90 for driving the disconnecting link 61 to rotate, the power driven systems
90 are sequentially connected by the 4th transmission component and the ground connection operating shaft 75 (or can also be isolated operation axis 74).This is electronic
The core component of system 90 is motor, and the 4th transmission component includes third gear 91 and the second gear 77, third tooth
Wheel 91 is mounted on the output shaft of motor, and is engaged with second gear 77.
In the present embodiment, 71 installed in front of the rack has operation panel 10, the operation panel 10 be equipped with it is described every
From operating shaft 74, ground connection 75 one-to-one isolated operation hole 11 of operating shaft and ground connection handle hole 12.The isolated operation hole 11
With ground connection handle hole 12 be respectively provided with preset shape (in the present embodiment, the isolated operation hole 11 and ground connection handle hole 12
Shape is similar fan-shaped respectively, but not limited to this), the isolated operation axis 74 is inserted into limitation or is grounded the operation of operating shaft 75
The rotation angle of handle 80, the rotation angle are the rotation angle that the disconnecting link 61 realizes closing position/earthing position divide-shut brake
Degree, to further decrease the risk that disconnecting switch is misused.In order to be more convenient for distinguishing, the front of the operation panel 10 every
It is respectively equipped with handle hole identification marking and switching on and off operation mark from handle hole 11 and 12 side of ground connection handle hole.
The invention also includes operating control devices, as shown in Fig. 7-Figure 12 comprising movable plate 20, mechanical interlock mechanism
30, movable plate 20 is linked by mechanical interlock mechanism 30 with breaker, which can be steered unlatching when being released
The isolated operation hole 11 or ground connection handle hole 12, the movable plate 20 can simultaneously be resetted by the first elastic component 25, and reset shape
State closes the isolated operation hole 11 and ground connection handle hole 12.When breaker closing, mechanical chain mechanism 30 is driven to move, to
Movable plate 20 is lockked, movable plate 20 is made to be maintained at reset state；When breaker open operation, mechanical chain mechanism 30 is driven to move, from
And releasing activity plate 20.
In the present embodiment, the mechanical interlock mechanism 30 includes lower platen 31, third transmission component and latching member 34, is pushed
Plate 31 connects latching member 34 by transmission component, and when breaker closing, lower platen 31 is pressed down, and is closed by transmission component drive
Latch fitting 34 is moved to lock movable plate 20, and movable plate 20 is made to be maintained at reset state；When breaker open operation, latching member 34 resets simultaneously
Releasing activity plate 20.The the first slot position coordinated with latching member 34 is correspondingly provided on the movable plate 20.
In the present embodiment, the third transmission component includes driver plate 32, blocking lever 33, the first revolving part 311, under described
Pressing plate 31 and driver plate 32 can be installed on a first support 37 up or down respectively, and the latching member 34 can pacify up or down
Loaded on a second support 310, driver plate 32 connects latching member 34 by blocking lever 33, and the first revolving part 311 is rotationally connected with the
One holder 37, and be flexibly connected with lower platen 31, when lower platen 31 is pressed down, the rotation of the first revolving part 311 is driven to be passed with pushing tow
Movable plate 32 makes latching member 34 lock movable plate 20；The driver plate 32, blocking lever 33, latching member 34 pass through dead weight and the second bullet
Property part 35 reset.It is specially spring that the blocking lever 33, which passes through a guiding trestle 36, second elastic component 35, is sleeved on connection
On locking bar 33, and its top is resisted against on guiding trestle 36, and bottom end is resisted against the screens of 33 side wall of blocking lever setting.
In the present embodiment, the operating control device further includes the bar 38 of locking a door for lockking door of switch cabinet, this is locked a door
Bar 38 can be installed on the first support 37 movably forward and backward, and be flexibly connected with first revolving part 311, the lower platen
31 when being pressed down, and the first revolving part 311, which rotates, simultaneously drives bar 38 of locking a door to retract to discharge cabinet door, the bar 38 and can be by the of locking a door
Three elastic components 312 and/or the drive of the first revolving part 311 are resetted.First revolving part 311 is in T shape, middle part rotation
It is connected to the first support 37, left end is flexibly connected with lower platen 31, and right end is used for upward pushing tow driver plate 32, bottom
It holds and is flexibly connected with bar 38 of locking a door.The third elastic component 312 is spring, is sleeved on and locks a door on bar 38, and opens and withstand on the first rotation
Turn between 311 bottom end of part and first support 37.
In the present embodiment, the operating control device further includes shutdown mandril 39 and the second revolving part 313, shutdown mandril 39
Can be installed on the first support 37 movably forward and backward, the second revolving part 313 is rotationally connected with the first support 37, and with institute
It states driver plate 32 and shutdown mandril 39 is flexibly connected, shutdown mandril 39 passes through the 4th elastic component when the cabinet door of switchgear is opened
314 reset and the second revolving part 313 are driven to rotate, and make 313 pushing tow driver plate 32 of the second revolving part, to drive latching member 34 to lock
Movable plate 20.Second revolving part 313 is in inverted v-shaped, and its top is rotationally connected with second revolving part 313, left
Side bottom end is flexibly connected with movable plate 20, and right side bottom end is flexibly connected with the shutdown mandril 39.4th elastic component 314
It for spring, is sleeved on shutdown mandril 39, and opens and withstand between the right side bottom end and first support 37 of the second revolving part 313.Institute
It states and offers upper and lower two waist-shaped holes on driver plate 32, the shaft of shaft and the second revolving part 313 to the first revolving part 311
It steps down.
In the present embodiment, the movable plate 20 can be slidingly installed in the operation panel 10 of the disconnecting switch
Side, the operation panel 10 are equipped with the isolated operation hole 11 and ground connection handle hole 12, and isolated operation hole 11 and ground connection handle hole
12 be upper and lower relation.Specifically, 10 back side of the operation panel is fixed with a limit cover board 15, which is equipped with and institute
Isolated operation hole 11 and ground connection handle hole 12 matched through-hole one by one are stated, the cooperation of the movable plate 20 is in operation panel 10 and limit
Between cover board 15.The operating control device further includes a shift fork 27, which is matched with 10 outside of operation panel, and passes through
Operation panel 10 and the connection movable plate 20, when movable plate 20 is released, which, which can be steered, drives movable plate 20
Sliding is to open the isolated operation hole 11 or ground connection handle hole 12.In isolated operation hole 11 and ground connection on the operation panel 10
Position between handle hole 12 is opened there are one the strip-shaped hole 13 that is transversely arranged, the shift fork 27 i.e. across the strip-shaped hole 13, and
It can horizontally slip along the strip-shaped hole 13.The downside that 10 front of the operation panel corresponds to shift fork 27 is further fixed on a limiting plate 14,
The limiting plate 14 is transversely opened there are three limit hole, three kinds of states of corresponding movable plate 20, also opened on the shift fork 27 there are one
Hole, when shift fork 27 is moved to it is opposite up and down with any one limit hole of limiting plate when, can by the lock bridge of padlock pass through shift fork 27
On hole and corresponding limit hole after buckle into the lock body of padlock, to prevent shift fork 27 from being struck.
In the present embodiment, the operating control device further includes latching electromagnet 40, when busbar charges, the locking electromagnetism
The locking bar of iron 40 stretches out and locks the movable plate 20, and movable plate 20 is made to be maintained at reset state.The latching electromagnet 40 is specific
Mounted on the limited cover back, and its locking bar may pass through limit cover board and movable plate 20.Correspondence is set on the movable plate 20
There is the trepanning 28 coordinated with the locking bar of latching electromagnet 40.
In the present embodiment, the operating control device further includes being opened for controlling the fine motion of 90 power on/off of the power driven system
50 are closed, in one during the movable plate 20 opens the isolated operation hole 11 and ground connection handle hole 12, the movable plate 20
And the microswitch 50 is touched, so that power driven system 90 powers off, opens the isolated operation hole 11 in the movable plate 20 and connect
When another in ground handle hole 12, movable plate 20 and one switch press plate 51 of pushing tow drive the switch press plate 51 to touch fine motion and open
50 are closed, so that power driven system 90 powers off.The microswitch 50 is mounted on 15 back side of limit cover board, and switch press plate 51 rotates
It is connected to 15 back side of limit cover board, and similar pendulum, the movable plate 20 are correspondingly provided with across the limit cover board 15 simultaneously
The top end part 23 that can be horizontally slipped, the pushing part 23 coordinate between microswitch 50 and switch press plate 51.
In the present embodiment, the operating control device further includes door-closing interlock pin 16, which passes through described
Operation panel 10, and the door-closing interlock pin 16 is depressed by cabinet door to discharge the movable plate 20 when the cabinet door of switchgear is closed,
The door-closing interlock pin 16 resets by the 5th elastic component when cabinet door is opened and locks movable plate 20, and movable plate 20 is made to be maintained at multiple
Position state.The the second slot position 26 coordinated with door-closing interlock pin 16 is correspondingly provided on the movable plate 20.
In the present embodiment, the movable plate 20 be equipped with abdicating through hole 21 and resigning breach 22, abdicating through hole 21 with it is described
The alignment of ground connection handle hole 12 is staggered, to be turned on and off ground connection handle hole 12；Resigning breach 22 and the isolated operation hole 11
It is aligned or is staggered, to be turned on and off isolated operation hole 11.First elastic component 25 is two-way torsional spring, the two-way torsional spring installation
In the disconnecting switch, and two reset terminals of the two-way torsional spring are separately connected the movable plate 20.Specifically, the two-way torsional spring
Fixing end be fixed on 15 back side of limit cover board, the movable plate 20 is correspondingly provided with across limit cover board 15 and can control shifting
Two reset terminals of dynamic interconnecting piece 24, the two-way torsional spring are fixedly connected with interconnecting piece 24 respectively.
Working principle of the present invention is as follows：
Abdicating through hole 21 in reset state, movable plate 20 is staggered with ground connection handle hole 12, resigning breach 22 be isolated
Handle hole 11 is staggered, to close ground connection handle hole 12 and isolated operation hole 11.
When breaker closing, lower platen 31 is pressed down, to drive the first revolving part 311 to rotate counterclockwise (in Figure 12
Under view), it pushes driver plate 32 to move upwards, so that blocking lever 33 is above carried and latching member 34 is driven to move up, to lock work
Movable plate 20 makes movable plate 20 be maintained at above-mentioned reset state, to prevent staff's disconnecting switch operation.At this point, bar of locking a door
38 drive retraction by the first revolving part 311, and the cabinet door of switchgear is allow to open.
When breaker open operation, lower platen 31 loses lower pressure, driver plate 32, blocking lever 33 and latching member 34 conducted oneself with dignity and
The reply force effect of second elastic component 35 falls, to releasing activity plate 20.Meanwhile bar 38 of locking a door by the first revolving part 311 and
The effect of third elastic component 312 stretches out and locks cabinet door.At this point, if cabinet door is open, mandril 39 of closing the door is by the 4th elastic component
314 effect extensions, drive the second revolving part 313 to rotate clockwise (under Figure 12 views), prevent driver plate 32 from falling, to make
Latching member 34 keeps lockking the state of movable plate 20.When cabinet door is opened, door-closing interlock pin 16 is resetted simultaneously by the 5th elastic component
Movable plate 20 is lockked, movable plate 20 is made to be maintained at reset state.When cabinet door is closed, shutdown mandril 39 bounces back, and drives second
Revolving part 313 rotates counterclockwise, to discharge driver plate 32, makes 34 releasing activity plate 20 of latching member.When cabinet door is closed, close the door
Interlocking latch 16 also discharges the movable plate 20 by cabinet door pressure.
When switch cabinet bus charges, the locking bar of latching electromagnet 40 stretches out and locks movable plate 20, barrier activity plate 20
Sliding, avoids on-load divide-shut brake disconnecting switch.
When movable plate 20 is released, when staff stirs shift fork 27 to the left, the sliding opening to the left of movable plate 20 is driven
Be grounded handle hole 12 when, movable plate 20 can directly touch microswitch 50, to cut off disconnecting switch power driven system 90 electricity
Manual priority when electric operating is realized in source.When staff stirs to the right shift fork 27, the sliding opening to the right of movable plate 20 is driven
When isolated operation hole 11, the meeting touch switch of movable plate 20 pressing plate 51 touches microswitch 50, to cut off by switch press plate 51
The voltage of the power driven system 90 of disconnecting switch realizes manual priority when electric operating.
Isolated operation hole 11 is opened in movable plate 20, and operation handle 80 is inserted by staff across isolated operation hole 11
When isolated operation axis 74, as staff rotates operation handle 80, operation handle 80 drives isolated operation axis 74 to rotate, isolation
Operating shaft 74 is pulled along by second transmission component or pushes insulated tension pole 73 backward again, to drive 61 up time of disconnecting link
Needle rotates counterclockwise, and realizes that operating position divide-shut brake, i.e. disconnecting link 61 go to closing position or go to isolated bit.
Ground connection handle hole 11 is opened in movable plate 20, and operation handle 80 is passed through ground connection handle hole 12 to be inserted by staff
When being grounded operating shaft 75, as staff rotates operation handle 80, operation handle 80 drives ground connection operating shaft 75 to rotate, ground connection
Operating shaft 75 drives isolated operation axis 74 to rotate by the first transmission component, isolated operation axis 74 again by the second transmission component to
Preceding pulling pushes insulated tension pole 73 to be grounded position division to drive disconnecting link 61 to rotate clockwise or counterclockwise backward
Lock, i.e. disconnecting link 61 go to isolated bit or ground connection position.
When using electric operation mode, start motor, motor drives 75 turns of operating shaft of ground connection by the 4th transmission component
Dynamic, ground connection operating shaft 75 drives isolated operation axis 74 to rotate by the first transmission component, and isolated operation axis 74 is passed by second again
Dynamic component is pulled along or pushes backward insulated tension pole 73, to drive disconnecting link 61 to rotate clockwise or counterclockwise, realizes isolation
The breaking-closing operating of switch.
A kind of tri-station isolating switch that above-described embodiment only is used for further illustrating the present invention, but the present invention does not limit to
It is every to any simple modification, equivalent variations made by above example and to repair according to the technical essence of the invention in embodiment
Decorations, each fall in the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of tri-station isolating switch, including major loop mechanism, operating mechanism, major loop mechanism set disconnecting link, combined floodgate static contact,
Grounding static contact, and disconnecting link realizes three Switch of working position by being rotated between combined floodgate static contact and grounding static contact；Its feature exists
In：The operating mechanism includes rack, divides for realizing the isolated operation axis of operating position divide-shut brake, for realizing earthing position
The ground connection operating shaft of combined floodgate, isolated operation axis, ground connection operating shaft are rotatably installed on rack, and the two passes through the first transmission group
Part is mutually sequentially connected, and isolated operation axis or ground connection operating shaft connect the disconnecting link by the second transmission component, to drive disconnecting link to turn
It is dynamic.
2. tri-station isolating switch according to claim 1, it is characterised in that：The rack is equipped with operation panel, should
Operation panel is equipped with and the isolated operation axis, the one-to-one isolated operation hole of ground connection operating shaft and ground connection handle hole；Also
Including operating control device comprising movable plate, mechanical chain mechanism, movable plate are linked by mechanical interlock mechanism and breaker
Cooperation can be steered when the movable plate is released and open the isolated operation hole or ground connection handle hole, and movable plate and can pass through
First elastic component resets, to close the isolated operation hole and ground connection handle hole；
The mechanical interlock mechanism includes lower platen, third transmission component and latching member, and lower platen is connected by third transmission component
Connecing latching member, when breaker closing, lower platen is pressed down, and drives latching member movement to lock movable plate by transmission component,
Movable plate is set to be maintained at reset state；When breaker open operation, latching member resets and releasing activity plate.
3. tri-station isolating switch according to claim 2, it is characterised in that：The third transmission component includes transmission
Plate, blocking lever, the first revolving part, the lower platen and driver plate are slidably mounted on a first support, the locking respectively
Part is slidably mounted on disconnecting switch or a second support, and driver plate connects latching member by blocking lever, and the first revolving part turns
It is dynamic to be connected to first support, and be flexibly connected with lower platen, when lower platen is pressed down, the rotation of the first revolving part is driven to be passed with pushing tow
Movable plate makes latching member lock movable plate；The driver plate, blocking lever, latching member are resetted by dead weight and/or the second elastic component.
4. tri-station isolating switch according to claim 3, it is characterised in that：The operating control device further includes being used for
The bar of locking a door of door of switch cabinet is lockked, which can be installed on the first support movably forward and backward, and be revolved with described first
Turn part flexible connection, when the lower platen is pressed down, the first revolving part rotates and bar of locking a door is driven to retract to discharge cabinet door, the lock
Door rod can simultaneously be resetted by third elastic component and/or the drive of the first revolving part.
5. tri-station isolating switch according to claim 3 or 4, it is characterised in that：The operating control device further includes
Shutdown mandril and the second revolving part, shutdown mandril can be installed on the first support movably forward and backward, and the rotation of the second revolving part connects
It is connected to the first support, and is flexibly connected with the driver plate and shutdown mandril, shutdown mandril is opened in the cabinet door of switchgear
When resetted by the 4th elastic component and drive the second revolving part rotate, make the second revolving part pushing tow driver plate, to drive latching member
Lock movable plate.
6. tri-station isolating switch according to claim 2, it is characterised in that：The operating control device further includes locking
Electromagnet, when busbar charges, the locking bar of the latching electromagnet stretches out and locks the movable plate, and movable plate is made to be maintained at reset
State；And/or the isolated operation hole and ground connection handle hole are respectively provided with preset shape, are inserted into the isolation with limitation and grasp
Make axis or is grounded the rotation angle of the operation handle of operating shaft.
7. tri-station isolating switch according to claim 2, it is characterised in that：Further include for driving the disconnecting link to rotate
Power driven system, which passes through the 4th transmission component and the isolated operation axis or ground connection operating shaft is sequentially connected；Institute
It further includes the microswitch for controlling the power driven system power on/off to state operating control device, described in movable plate unlatching
Isolated operation hole and ground connection handle hole in one when, the movable plate simultaneously touches the microswitch so that power driven system power off,
The movable plate open the isolated operation hole and be grounded handle hole in another when, movable plate and pushing tow one switch pressure
Plate drives the switch press plate to touch microswitch, so that power driven system powers off.
8. tri-station isolating switch according to claim 2, it is characterised in that：The movable plate is slidably mounted on institute
It states on the inside of operation panel, the operating control device further includes a shift fork, which is matched on the outside of operation panel, and across behaviour
Make panel and the connection movable plate, when movable plate is released, which, which can be steered, drives movable plate sliding to open
State isolated operation hole or ground connection handle hole.
9. tri-station isolating switch according to claim 1, it is characterised in that：First transmission component include with it is described
First gear that isolated operation axis coaxially connects and the second gear coaxially to connect with the ground connection operating shaft, first gear and the
Two gears engage；
Second transmission component includes the main shaft for being installed on the rack, torsion spring mechanism, locking mechanism, connecting lever, and connecting lever passes through
Insulated tension pole connects the disconnecting link, and the isolated operation axis or ground connection operating shaft are connected by gear-driven assembly and spindle drive
It connects, main shaft drives torsion spring mechanism energy storage by rotation, and torsion spring mechanism, which has stored up, can and trigger locking mechanism unlock, and torsion spring mechanism is made to release
Can, torsion spring mechanism can drive connecting lever to rotate by releasing, and connecting lever is made to pull or push insulated tension pole.
10. tri-station isolating switch according to claim 1, it is characterised in that：The major loop mechanism is three-phase system,
With with one-to-one three disconnecting links of three-phase, three disconnecting links by left, center, right be distributed, and the spacing of adjacent disconnecting link be 145-
155mm；And/or the major loop mechanism has the insulation base that switchgear inner cavity can be divided into upper interstar connection room and lower interstar connection room
Seat, the disconnecting link, combined floodgate static contact, grounding static contact are mounted on the insulating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256613.5A CN108735543B (en) | 2017-04-19 | 2017-04-19 | Three-station isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256613.5A CN108735543B (en) | 2017-04-19 | 2017-04-19 | Three-station isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108735543A true CN108735543A (en) | 2018-11-02 |
| CN108735543B CN108735543B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710256613.5A Active CN108735543B (en) | 2017-04-19 | 2017-04-19 | Three-station isolating switch |
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| Country | Link |
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| CN (1) | CN108735543B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638700A (en) * | 2018-12-31 | 2019-04-16 | 芜湖金牛电气股份有限公司 | Low-tension switch cabinet and its working method |
| CN110571091A (en) * | 2019-09-25 | 2019-12-13 | 北京合锐清合电气有限公司 | Interlocking mechanism of ZW32 type pole switch isolation knife and switch mechanism |
| CN114823207A (en) * | 2022-03-18 | 2022-07-29 | 珠海优特电力科技股份有限公司 | Operating device of three-position disconnecting link switch and three-position disconnecting link switch |
| CN117038374A (en) * | 2023-09-28 | 2023-11-10 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
| CN117060264A (en) * | 2023-10-12 | 2023-11-14 | 广东正超电气有限公司 | Triple locking structure of chassis truck and grounding switch of movable switch cabinet |
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| CN201556840U (en) * | 2009-05-18 | 2010-08-18 | 宁波天安（集团）股份有限公司 | Interlocking operation device for high-voltage switch cabinet |
| CN203871257U (en) * | 2014-05-29 | 2014-10-08 | 厦门兴厦控电气有限公司 | Three-station isolation switch |
| CN204537927U (en) * | 2015-05-04 | 2015-08-05 | 湖南长高高压开关集团股份公司 | The logic blocking structure of a kind of New Type Isolating Switch and earthed switch |
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| CN201556840U (en) * | 2009-05-18 | 2010-08-18 | 宁波天安（集团）股份有限公司 | Interlocking operation device for high-voltage switch cabinet |
| CN203871257U (en) * | 2014-05-29 | 2014-10-08 | 厦门兴厦控电气有限公司 | Three-station isolation switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638700A (en) * | 2018-12-31 | 2019-04-16 | 芜湖金牛电气股份有限公司 | Low-tension switch cabinet and its working method |
| CN110571091A (en) * | 2019-09-25 | 2019-12-13 | 北京合锐清合电气有限公司 | Interlocking mechanism of ZW32 type pole switch isolation knife and switch mechanism |
| CN114823207A (en) * | 2022-03-18 | 2022-07-29 | 珠海优特电力科技股份有限公司 | Operating device of three-position disconnecting link switch and three-position disconnecting link switch |
| CN117038374A (en) * | 2023-09-28 | 2023-11-10 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
| CN117038374B (en) * | 2023-09-28 | 2023-12-08 | 广东米勒电气有限公司 | Double-station grounding switch with function of rapidly closing short-circuit fault current |
| CN117060264A (en) * | 2023-10-12 | 2023-11-14 | 广东正超电气有限公司 | Triple locking structure of chassis truck and grounding switch of movable switch cabinet |
| CN117060264B (en) * | 2023-10-12 | 2024-01-05 | 广东正超电气有限公司 | Triple locking structure of chassis truck and grounding switch of movable switch cabinet |
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|---|---|
| CN108735543B (en) | 2020-08-11 |
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