CN109920668A - Earthing switch and back door interlocking device and the switchgear for using the interlock - Google Patents
Earthing switch and back door interlocking device and the switchgear for using the interlock Download PDFInfo
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- CN109920668A CN109920668A CN201910168011.3A CN201910168011A CN109920668A CN 109920668 A CN109920668 A CN 109920668A CN 201910168011 A CN201910168011 A CN 201910168011A CN 109920668 A CN109920668 A CN 109920668A
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- back door
- earthing switch
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Abstract
The present invention relates to a kind of earthing switch and back door interlocking device and use the switchgear of the interlock, switchgear includes cabinet body, the rear side of cabinet body is equipped with back door, earthing switch is equipped in the middle part of the intracorporal front-rear direction of cabinet, switchgear further includes for realizing the interlock of earthing switch and rear gate interlock, the interlock includes the operation front axle with earthing switch transmission cooperation, it further include the operation rear axle for locking and the unlock back door with operation front axle linkage, the operation front axle and the axis for operating rear axle mutually stagger, it operates front axle and is equipped with eccentric shifting part, operation rear axle is equipped with for stirring lower swing in eccentric shifting part to drive the eccentric bearing member for operating rear axle rotation and realizing operation front axle and operation rear axle linkage, interlock further includes the elasticity applied to eccentric bearing member towards the mobile active force of eccentric shifting part Part makes the structure of interlock simpler compared with the prior art, while being also beneficial to reduce cost.
Description
Technical field
The present invention relates to a kind of earthing switch and back door interlocking device and use the switchgear of the interlock.
Background technique
Interlocking is arranged in existing high-tension switch cabinet, between high-tension cable room back door and the earthing switch of switchgear to fill
It sets, the function that interlock can be realized is: only when switchgear cable vault back door is closed, earthing switch point can be made
Lock, while back door can be only opened when the grounding switch is closed.Setting interlock can prevent operator to be strayed into band
Electricity interval, it is ensured that production safety.
In current high-tension switch cabinet, the side-to-side dimensions and bus spacing of switchgear often have clear standard, and female
Line insulation against ground distance also has clear standard, and just the form to the interlock of switchgear and parameter propose requirement for this.It is full
The existing standard of foot, presently, there are two kinds of interlocks, the first interlock as shown in Figure 1, earthing switch 500 after cabinet
Position, in order to guarantee the intensity of earthing operating shaft 100, which is made of metal material, and interlocking form is
Operating shaft is directly interlocked with cabinet door, but if being arranged so, C phase bus and earthing operating shaft 100 in switchgear
Distance is not able to satisfy related request, so operator can install insulating barrier 200 additional arriving between operating shaft and C phase bus, so
And it installs insulating barrier additional and will be unable to the use demand for meeting certain clients.In order to be improved to the first interlock, at present
It also proposed second of interlock, as shown in Fig. 2, earthing switch 500 has been mounted in cabinet front position, if being arranged so, ground connection
300 need of knife operating shaft are to medium position, and the preceding part operating shaft outside cabinet body 400 uses metal material, in cabinet body 400
Part blocking lever uses isolation material afterwards, to meet the insulating requirements between electrical body and operating shaft, but side phase bus away from
Insulation blocking lever distance L1 can only also have 110mm, and such structure is possible to that electric discharge phenomena can occur in actual operation.
Authorization Notice No. is CN203760364U, authorized announcement date be the patent document of 2014.08.06 disclose it is a kind of with
The back door interlocking device of second of interlock arrangement, after being mounted on the intracorporal earthing operating shaft of cabinet and control
The back door interlocking device that door is acted with earthing switch interlocking, the operating shaft include operation front axle made of metal and by exhausted
Rear axle is operated made of edge material, and back door interlocking device is connected on operation front axle and controls whether operation front axle is able to rotate.
The opposed end of axis and operation rear axle is connected separately with umbrella cover gear before operation in above-mentioned patent document, in two umbrellas
The transmission gear for being provided between face gear while being engaged with two umbrella cover gears, by engaging for umbrella cover gear and transmission gear,
It realizes operation front axle and operates the synchronous rotation of rear axle, further realize when rotation operates front axle, make to operate the slot on rear axle
Notch locking on plate and cabinet door cooperates.
But wherein the problem of is: by gear engaged transmission between operation front axle and operation rear axle, structure is complicated, at
This height, assembly, maintenance are inconvenient, occupy biggish space.
Summary of the invention
The purpose of the present invention is to provide a kind of earthing switch and back door interlocking devices, to solve interlocking dress in the prior art
Set the problem of structure is complicated；The object of the invention is also to provide a kind of switchgears using the interlock.
Switchgear of the invention adopts the following technical scheme that
Switchgear includes cabinet body, and the rear side of cabinet body is equipped with back door, is equipped with earthing switch, switchgear in the middle part of the intracorporal front-rear direction of cabinet
It further include for realizing the interlock of earthing switch and rear gate interlock, the interlock includes being driven to cooperate with earthing switch
Operation front axle, further include for locking and unlocking the operation rear axle at the back door with operation front axle linkage, before the operation
The axis of axis and operation rear axle mutually staggers, and operation front axle is equipped with eccentric shifting part, and operation rear axle is equipped in bias
Shifting part stirs lower swing to drive the rotation of operation rear axle and realizes operation front axle and operate the eccentric bearing member of rear axle linkage,
Interlock further includes the elastic component applied to eccentric bearing member towards the mobile active force of eccentric shifting part.
The beneficial effects of the present invention are: being mutually staggered front axle is operated with the axis for operating rear axle, operates and be arranged on front axle
Eccentric shifting part operates and is provided with eccentric bearing member on rear axle, and when driving operates front axis, operation rear axle exists operator
Eccentric shifting part stirs lower swing, to drive operation rear axle rotation, realizes operation front axle and operation rear axle linkage, elastic component can
To apply the active force mobile towards eccentric shifting part to eccentric bearing member, contact eccentric bearing member with eccentric shifting part, from
And it ensure that eccentric bearing member and stablizing for eccentric shifting part cooperate, and make the structure of interlock more compared with the prior art
Simply, it while being also beneficial to reduce cost.
For the structure for simplifying eccentric shifting part, the rear end that front axle is operated described in this programme, which is equipped with, forms eccentric shifting part
Push jack is rotated, the rotation push jack is vertical with the operation axis of front axle.
Installation for convenience of rotation push jack is fixed, and the rear end that front axle is operated described in this programme, which is provided with, radially to be extended
Slot, the rotation push jack is plugged in slot, and the fastener on the rear end face by being connected to operation front axle is fixed on
It operates on front axle.
For the manufacture convenient for eccentric bearing member, bias bearing member described in this programme includes the set being sleeved on operation rear axle
Body, further include extended outwardly from body periphery setting with the plate body eccentric shifting part with, operation rear axle and body between
It is provided with spline structure.
For the structure for simplifying elastic component, elastic component described in this programme is the torsional spring being set on operation rear axle.
For convenience of realize back door and interlock linkage, interlock described in this programme further include fore-aft travel set
The driving member before operation between the rear end and back door of axis is set, the front end of driving member is equipped with the interlocking being set on operation front axle
The rear end of part, the operation front axle has the rotation stop section cooperated with locking part rotation stop, also has and is located on front side of rotation stop section to release
With the unlock section of locking part rotation stop.
For convenience of the installation of locking part, the corresponding position of shaft rear end is equipped with guiding before operating on cabinet body in this programme
Seat, the locking part guiding are assemblied on guide holder.
For the structure for simplifying locking part, locking part described in this programme includes the ring body for being connected to driving member front end, ring body
Inner hole and the rotation stop section rotation stop of operation front axle cooperate, the two sides up and down of ring body periphery are provided with convex block, and guide holder has up and down
Otic placode is provided with the guide groove with convex block guiding cooperation on otic placode.
To simplify the structure on interlock with back door interlocking part, the rear end that rear axle is operated described in this programme is provided with
With the locking plate of rear gate interlock, axis of the locking plate perpendicular to operation rear axle；On cabinet body and on the corresponding position of the rear end of operation rear axle
Equipped with locking plate locating rack, it is provided with the retaining groove vertically extended on the locking plate locating rack, the locking plate is from the retaining groove
It inside passes through, and cooperates with the front and rear sides cell wall block of retaining groove.
Earthing switch of the invention is adopted the following technical scheme that with back door interlocking device
Earthing switch and back door interlocking device include for the operation front axle with earthing switch transmission cooperation, before further including and operating
The operation rear axle for locking and unlock back door of axis linkage, the operation front axle and the axis for operating rear axle mutually stagger, and grasp
Make front axle and be equipped with eccentric shifting part, operation rear axle be equipped with for eccentric shifting part stir lower swing to drive operation after
Axis rotates and realizes operation front axle and operate the eccentric bearing member that rear axle links, and earthing switch and back door interlocking device further include pair
Eccentric bearing member applies the elastic component towards the mobile active force of eccentric shifting part.
The beneficial effects of the present invention are: being mutually staggered front axle is operated with the axis for operating rear axle, operates and be arranged on front axle
Eccentric shifting part operates and is provided with eccentric bearing member on rear axle, and when driving operates front axis, operation rear axle exists operator
Eccentric shifting part stirs lower swing, to drive operation rear axle rotation, realizes operation front axle and operation rear axle linkage, elastic component can
To apply the active force mobile towards eccentric shifting part to eccentric bearing member, contact eccentric bearing member with eccentric shifting part, from
And it ensure that eccentric bearing member and stablizing for eccentric shifting part cooperate, and make the structure of interlock more compared with the prior art
Simply, it while being also beneficial to reduce cost.
For the structure for simplifying eccentric shifting part, the rear end that front axle is operated described in this programme, which is equipped with, forms eccentric shifting part
Push jack is rotated, the rotation push jack is vertical with the operation axis of front axle.
Installation for convenience of rotation push jack is fixed, and the rear end that front axle is operated described in this programme, which is provided with, radially to be extended
Slot, the rotation push jack is plugged in slot, and the fastener on the rear end face by being connected to operation front axle is fixed on
It operates on front axle.
For the manufacture convenient for eccentric bearing member, bias bearing member described in this programme includes the set being sleeved on operation rear axle
Body, further include extended outwardly from body periphery setting with the plate body eccentric shifting part with, operation rear axle and body between
It is provided with spline structure.
For the structure for simplifying elastic component, elastic component described in this programme is the torsional spring being set on operation rear axle.
For convenience of the linkage for realizing back door and earthing switch and back door interlocking device, earthing switch described in this programme is with after
Door interlock further include fore-aft travel the driving member of the rear end of axis before operation is set, the front end of driving member, which is equipped with, to be set in
The locking part on front axle is operated, the rear end of the operation front axle has the rotation stop section cooperated with locking part rotation stop, also has and be located at
To release the unlock section with locking part rotation stop on front side of rotation stop section.
For convenience of the installation of locking part, the corresponding position of shaft rear end is equipped with guiding before operating on cabinet body in this programme
Seat, the locking part guiding are assemblied on guide holder.
For the structure for simplifying locking part, locking part described in this programme includes the ring body for being connected to driving member front end, ring body
Inner hole and the rotation stop section rotation stop of operation front axle cooperate, the two sides up and down of ring body periphery are provided with convex block, and guide holder has up and down
Otic placode is provided with the guide groove with convex block guiding cooperation on otic placode.
To simplify the structure on earthing switch and back door interlocking device with back door interlocking part, after being operated described in this programme
The rear end of axis is provided with for the locking plate with rear gate interlock, axis of the locking plate perpendicular to operation rear axle；On cabinet body with operation rear axle
The corresponding position of rear end be equipped with locking plate locating rack, be provided with the retaining groove vertically extended on the locking plate locating rack,
The locking plate is passed through out of described retaining groove, and is cooperated with the front and rear sides cell wall block of retaining groove.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the first switchgear in the prior art；
Fig. 2 is the schematic diagram of internal structure of second of switchgear in the prior art；
Fig. 3 is schematic view of the mounting position of the interlock on switchgear in the specific embodiment of switchgear of the invention；
Fig. 4 is the schematic diagram of internal structure of the specific embodiment of switchgear of the invention；
Fig. 5 is the perspective view (spring and torsional spring is not shown) of interlock in Fig. 1；
Fig. 6 is structural schematic diagram when removing locking plate locating rack in Fig. 5 at A；
Fig. 7 is the explosive view of interlock in 3；
Fig. 8 is the structural schematic diagram of earthing operating shaft in Fig. 7；
Fig. 9 is the main view of Fig. 8；
Figure 10 is the left view of Fig. 9；
Figure 11 is the structural schematic diagram that push jack is rotated in Fig. 7；
Figure 12 is the structural schematic diagram of pressing plate in Fig. 7；
Figure 13 is the structural schematic diagram of drive rod in Fig. 7；
Figure 14 is the structural schematic diagram of driver plate in Fig. 7；
Figure 15 is the structural schematic diagram of fixed ring in Fig. 7；
Figure 16 is the main view of Figure 15；
Figure 17 is the structural schematic diagram of guide holder in Fig. 7；
Figure 18 is the structural schematic diagram of guide-localization support frame in Fig. 7；
Figure 19 is the structural schematic diagram of lance in Fig. 7；
Figure 20 is the structural schematic diagram of locking plate locating rack in Fig. 7；
Figure 21 is the structural schematic diagram of locking plate in Fig. 7；
Figure 22 is the main view of Figure 21；
Figure 23 is the structural schematic diagram of locking plate hanging plate in Fig. 7；
Figure 24 is the main view of interlock when the back door of switchgear in Fig. 3 is opened；
Figure 25 is the left view of Figure 24；
Figure 26 is the right view of Figure 24；
Figure 27 is structural schematic diagram when Figure 24 removes drive rod；
Figure 28 is structural schematic diagram when Figure 24 removes driver plate, locking plate locating rack, guide-localization support frame and guide holder；
Figure 29 is pressing plate in Figure 28, the location diagram for rotating push jack and earthing operating shaft, locking plate and latch hook hanging plate；
Figure 30 is the main view of interlock when the back door of switchgear in Fig. 3 is closed；
Figure 31 is structural schematic diagram when Figure 30 removes drive rod；
Figure 32 is structural schematic diagram when Figure 30 removes driver plate, locking plate locating rack, guide-localization support frame and guide holder；
Figure 33 is pressing plate in Figure 31, the location diagram for rotating push jack and earthing operating shaft, locking plate and latch hook hanging plate；
Figure 34 is the state diagram when rotation stop section of earthing operating shaft in Fig. 7 is in fixed ring；
Figure 35 is the left view of Figure 34；
Figure 36 is the state diagram when unlock section of earthing operating shaft in Fig. 7 is in fixed ring；
Figure 37 is the left view of Figure 36.
In figure: 100- earthing operating shaft；200- insulating barrier；300- earthing operating shaft；400-cabinet bodies；500- connects
Ground switch；The back door 1-；2- lance；21- presses end；3- driver plate；31- threaded hole；32- tension spring connecting hole；33- fixed part；4-
Guide-localization support frame；The perforation of 41- driver plate；The perforation of 42- drive rod；43- tension spring fixation hole；5- tension spring；6- rotates push jack；
61- push jack fixation hole；62- pushing part；7- guide holder；71- guide groove；8- earthing operating shaft；81- rotation stop section；82- unlocks section；
83- slot；84- push jack connecting hole；9- fixed ring；91- inner hole；92- convex block；93- fixed ring fixation hole；10- pressing plate；101- set
Body；102- plate body；11- torsional spring；12- drive rod；121- locking plate fixed part；122- pressing plate fixed part；13- locking plate；131- locking plate
Fixation hole；14- locking plate locating rack；141- retaining groove；15- latch hook hanging plate；151- hook portion.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of switchgear of the invention, as shown in Figure 3 and Figure 4, switchgear include cabinet body, are set on rear side of cabinet body
Have a back door connection 1, be equipped with earthing switch 500 in cabinet body in the middle part of front-rear direction, switchgear further include for realizing earthing switch 500 with after
The interlock of 1 interlocking of door, this interlock are 10kV switch cabinet grounding switch 500 and 1 interlock of back door.Such as Fig. 5 to Fig. 7
Shown, interlock includes the operation front axle with the transmission cooperation of earthing switch 500, after further including and operating the operation that front axle links
Axis.Operation front axle in the present embodiment is earthing operating shaft 8, and operation rear axle is drive rod 12.Earthing operating shaft 8 and transmission
Bar 12 is arranged in a manner of axis misalignment.The switch that rotation is grounded knife counterclockwise of earthing operating shaft 8 closes in the present embodiment
For lock state to the conversion of gate-dividing state, earthing operating shaft 8, which rotates clockwise, is grounded switch gate-dividing state to combined floodgate shape
The conversion of state.
Earthing operating shaft 8 is equipped with rotation push jack 6, and rotates the extending direction of push jack 6 and the axis of earthing operating shaft 8
Line is vertical；As shown in Fig. 8 to Figure 10, the rear end of earthing operating shaft 8 is equipped with the slot 83 radially extended, as shown in figure 11,
It rotates push jack 6 and is equipped with push jack fixation hole 61, the rear end of earthing operating shaft 8 is equipped with push jack corresponding with push jack fixation hole 61
Connecting hole 84, the axial direction arrangement of push jack connecting hole 84 in the present embodiment along earthing operating shaft 8.Rotation push jack 6 is plugged in slotting
In slot 83 and the fastener by being fastened in push jack fixation hole 61 and push jack connecting hole 84 is connected in earthing operating shaft 8.
Specifically, push jack connecting hole 84 can be threaded hole, fastener is the screw cooperated with threaded hole.It should be noted that slot 83
Upper tool rotates the mating surface of parallel with stopping surface there are two tools and block cooperation on push jack 6 there are two the stopping surface being parallel to each other,
Guarantee the stability that push jack 6 is rotated when earthing operating shaft 8 rotates by the cooperation of stopping surface and mating surface.
As shown in Figures 5 to 7, the front end of drive rod 12 is equipped with pressing plate 10, and as shown in figure 12, pressing plate 10 includes being sleeved on
Body 101 on drive rod 12 and the plate body 102 that setting is extended outwardly by 101 periphery of body, the body 101 in the present embodiment
It is equipped with rectangular opening, as shown in figure 13, drive rod 12 is equipped with the pressing plate fixed part 122 with rectangular opening shape adaptation, passes through square
The transmission connection of pressing plate 10 and drive rod 12 is realized in shape hole and the cooperation of 122 rotation stop of pressing plate fixed part.As shown in Figures 5 to 7, this reality
Applying interlock in example further includes the guide holder 7 being fixed on side cabinet, and drive rod 12 rotates the rear end for being inserted into guide holder 7
In the pilot hole being arranged on face, the rear end face of guide holder 7 and the front end face block of body 101 cooperate, and prevent body 101 along transmission
Bar 12, which slides axially, to fall off.
As shown in Figures 5 to 7, torsional spring 11 is arranged on drive rod 12, the elastic arm at 11 both ends of torsional spring presses respectively to be assemblied in
Between the side plate of cabinet body and the plate body 102 of pressing plate 10.When earthing operating shaft 8 rotates, the top of plate body 102 and rotation push jack 6
The cooperation of 62 pushing tow of pushed section is stirred drive rod 12 by pushing part 62 and is rotated.Torsional spring 11 by being assemblied on drive rod 12 simultaneously
Active force towards rotation push jack 6 is applied to pressing plate 10, so that pressing plate 10 is contacted with rotation push jack 6, to ensure that bias is held
Power part and stablizing for eccentric shifting part cooperate, and the structure of entire interlock is simple.Certainly, earthing operating shaft 8 and drive rod
12 linkage actions realized under the cooperation of rotation push jack 6 and pressing plate 10 are the prior arts.
As shown in Fig. 5, Fig. 6, Fig. 7 and Fig. 9, interlock further includes being arranged between 12 rear end of drive rod and back door 1
Driver plate 3, driver plate 3 constitute the driving member in the present embodiment.The front end of driver plate 3 is equipped with and is set in earthing operating shaft 8
Fixed ring 9, as shown in Figure 15 and Figure 16, the inner hole 91 of fixed ring 9 is square hole, as shown in figure 8, earthing operating shaft 8
Rear end has the rotation stop section 81 being adapted to square hole and the unlock section 82 positioned at 81 front side of rotation stop section, and unlock section is cylindric knot
Structure.Earthing operating shaft 8 is realized by the cooperation of rotation stop section 81 and square hole with the cooperation of the rotation stop of fixed ring 9, by unlock section
82 release the rotation stop with fixed ring 9.When specifically used, when back door 1 is closed, at the unlock section 82 of earthing operating shaft 8
In in the square hole of fixed ring 9, at this point, operator can drive 8 separating brake of earthing operating shaft or combined floodgate.
As shown in Figure 15 to Figure 17, the two sides up and down of 9 periphery of fixed ring are provided with convex block 92, have up and down on guide holder 7
Otic placode, is provided with the guide groove 71 with the guiding cooperation of convex block 92 on otic placode, and when use passes through convex block 92 and the guiding of guide groove 71 cooperates
Fixed ring 9 can slide back and forth along guide holder 7.The fixed ring fixation hole 93 passed through for driver plate 3 is additionally provided in fixed ring 9, specifically
, fixed ring 9 is threaded through 3 one end of driver plate and fixed ring 9 is welded in 3 end of driver plate.
As shown in Figures 5 to 7, interlock further includes the guide-localization support frame 4 being fixed on side cabinet, and guiding is fixed
There is driver plate perforation 41 and drive rod perforation 42, driver plate 3 is installed in driver plate perforation 41 and passes through biography on the support frame 4 of position
Front and back guiding is realized in movable plate perforation 41, and drive rod 12 is installed in drive rod perforation 42 and realizes front and back by drive rod perforation 42
Guiding.
As shown in Figures 5 to 7, interlock further includes the tension spring being connected between driver plate 3 and guide-localization support frame 4
5, as shown in figure 14, driver plate 3 is equipped with tension spring connecting hole 32.As shown in figure 18, guide-localization support frame 4 is solid equipped with tension spring
Determine hole 43, the both ends of tension spring 5 are fixedly connected with tension spring fixation hole 43 and tension spring connecting hole 32 respectively.As shown in Figures 5 to 7, join
Locking device further includes the lance 2 for being connected to 3 rear end of driver plate, and as shown in figure 14, the rear end of driver plate 3 is equipped with threaded hole 31, is hit
The front end of bar 2 has thread segment, and specifically when installation, lance 2, which is connected through a screw thread, to be fixed on driver plate 3.As shown in figure 19, it hits
Bar 2 includes press end 21, and when back door 1 is closed, back door 1 is pressed against on the press end 21 of lance 2.
As shown in Figures 5 to 7, the rear end of drive rod 12 be provided with back door 1 interlock locking plate 13, and locking plate 13 perpendicular to
The axis of drive rod 12.The rear end corresponding position of drive rod 12 is equipped with locking plate locating rack 14, as shown in figure 20, locking plate locating rack
14 are equipped with the retaining groove 141 vertically extended.When drive rod 12 and back door 1 interlock, locking plate 13 is passed through out of retaining groove 141,
And cooperate with the front and rear sides face block of retaining groove 141, realize the positioning to 12 axial direction of drive rod.Such as Figure 21 and Figure 22 institute
Show that there is the locking plate fixation hole 131 of rectangle on locking plate 13, there is the lock with 131 shape adaptation of locking plate fixation hole on drive rod 12
Piece fixed part 121, locking plate fixation hole 131 and 121 rotation stop of locking plate fixed part cooperate, and specifically when assembly, can be threaded through locking plate 13
On drive rod 12, then it is fixed on drive rod 12 by the modes such as being bonded, welding, naturally it is also possible to will be on drive rod 12
One section of 121 rear side of locking plate fixed part is set as helicitic texture, and nut driving is on helicitic texture, and the front end face for passing through nut
Cooperate with 13 block of locking plate, avoids locking plate 13 from sliding axially along drive rod 12 and fall off.
As shown in Figures 5 to 7, interlock further includes latch hook hanging plate 15, as shown in figure 23, on latch hook hanging plate 15 have with
Locking plate 13 hooks the hook portion 151 of cooperation, and specifically when installation, latch hook hanging plate 15 is welded on 1 plate of back door, and locking plate locating rack 14 is pacified
On the side plate of cabinet body.
When this interlock can realize that switchgear cable vault back door 1 is closed, ability separating brake earthing switch 500, simultaneously only
The sequential interlocking device at back door 1 could be opened in 500 "on" position of earthing switch, main interlocked operation embodiment is as follows:
When rear door of switch cabinet 1 is closed, could the back door separating brake earthing switch 500:(1 open, 500 "on" position of earthing switch) such as
Shown in Figure 24 to Figure 29, in 1 opening state of back door, under 5 pulling force effect of tension spring, lance 2 stretches out in outside rear cabinet driver plate 3, passes
The bending mounting surface of movable plate 3 and the side plate bending face of switchgear limit, and only lance 2 is stretched out outside cabinet；Back door 1 is closed
Operation, back door 1, which is closed, forms displacement, and lance 2 is pushed to be driven into cabinet body, is welded in consolidating for the other end by the promotion of driver plate 3
Ring 9 is determined along the guide groove 71 of guide holder 7 to moving before cabinet, so that fixed ring 9 is from 81 position of rotation stop section of earthing operating shaft 8 position
Unlock 82 position of section is moved on to, the unlock of knife operating shaft 8 is grounded, so as to be grounded the rotation of knife operating shaft 8, is realized
It rotates counterclockwise, earthing separating brake, the rotation stop and unlock principle about fixed ring 9 and earthing operating shaft 8 are detailed in Figure 34 to figure
37。
The only combined floodgate of earthing switch 500 could open 500 separating brake of back door 1:(earthing switch, 1 closed state of back door) as schemed
30, to shown in Figure 33, in 1 closed state of back door, may be implemented 500 separating brake of earthing switch, specific implementation process and corresponding interlocking dress
Set as follows: rotation is grounded the "on" position of knife to the conversion of gate-dividing state, earthing operation to earthing operating shaft 8 counterclockwise
Axis 8 rotates counterclockwise, drives rotation push jack of the location and installation in 8 end of earthing operating shaft to rotate simultaneously, pressing plate is hit in compressing
10, pressing plate 10 reacts on torsional spring 11, and drive rod 12 is driven to rotate, so that locking plate 13 be driven to rotate synchronously, (is welded in door-plate
Latch hook hanging plate 15 protrudes into cabinet body in shutdown state) the rotation locking latch hook hanging plate 15 of locking plate 13, prevent cabinet back door 1 is from opening；
Earthing switch 500 closes a floodgate, and earthing operating shaft 8 rotates clockwise, and pressing plate 10 releases the compressing of rotation push jack 6, and rotation push jack 6 exists
Rotation is resetted under the action of torsional spring 11,13 synchronous rotary of locking plate releases the locking to latch hook hanging plate 15, and 1 side of back door can be beaten
It opens, realizes and only have the combined floodgate of earthing switch 500 that could open back door 1.
Device insulation performance requires to realize: as shown in Figure 3 and Figure 4, earthing switch 500 is installed in cabinet body in front-rear direction
Portion, 8 need of earthing operating shaft are driven to ground connection cutter position with the interlock metal plate at back door 1, complete unit with switchgear
Major loop bus intersectional region carries out the transmitting of interlock connection using plate and small round bar, completely concedes inside region, significantly
Space is saved, Fig. 4 is detailed in, realizes that interlocking transmission mechanism reaches with side phase bus distance L2 in 800mm wide 10kV switchgear
130mm fully meets earthing switch 500 and 1 interlock device of back door in 10kV switchgear electric insulating quality and is able to satisfy 125mm
Requirement.
Switchgear of the invention has the advantages that
1) when realizing the closing of the switchgear product cable vault back door 10kV, ability separating brake earthing switch 500, while being only grounded
500 "on" position of switch could open back door, avoid in back door opening state, the electrification of switchgear cable vault, main bus-bar connects shape
At high tension loop, mistakenly entering charged chamber；Improve five anti-interlocks, promote Medium Voltage Switchgear properties of product, ensure that in press off
Close the reliability and safety that cabinet operates with.
2) all parts of interlock are using laser cutting, and numerical control bending, assembled shaped by lapping, design accuracy is high, interlocking
Significant effect, protection precision are high.
3) 10kV switchgear properties of product are promoted, protection, the insulating requirements of switchgear are fully met.
Rotation push jack 6 in the present embodiment constitutes the eccentric shifting part；In other embodiments, eccentric shifting part can
For structural members such as the cam being fixed in earthing operating shaft or driving levers.
Rotation push jack 6 in the present embodiment is plugged in the slot 83 of earthing operating shaft 8, and is fixed on by fastener
In earthing operating shaft 8, in other embodiments, rotation push jack can be fixed on the end of earthing operating shaft by being bonded or welded
Portion is fixed on the outer peripheral surface of earthing operation shaft rear end.It is of course also possible to along earthing operating shaft on rotation push jack
Two push jack fixation holes are arranged in spaced radial, while two and push jack fixation hole one being arranged on the rear end face of earthing operating shaft
One corresponding push jack connecting hole, rotation push jack are fixed with earthing operating shaft by corresponding two push jack connecting holes and push jack
Hole is fixedly connected.Or be fixed in earthing operating shaft using fixed form of the pressing plate on drive rod by push jack is rotated, have
Body, rotation push jack may include the body and plate body being set in earthing operating shaft, set between body and earthing operating shaft
There is spline structure, rotation push jack is set in earthing operating shaft by body, and by being fixed on earthing operating shaft end
Fastener and body rear end block cooperation make rotate push jack be fixed in earthing operating shaft.
Pressing plate 10 in the present embodiment constitutes the eccentric bearing member；In other embodiments, eccentric bearing member can also
It is constituted to weld or being adhesively fixed on plate or the block structure of drive rod front end, mainly there is eccentric bearing member one can pass
Pass the face structure of power.
Rectangular opening and pressing plate fixed part 122 in the present embodiment constitute the spline structure in the present embodiment, in other implementations
In example, rectangular opening can also be replaced by tri-angle-holed, pentagon hole, hexagonal hole, while set pressing plate fixed part to and body
On hole adaptation polygonized structure.Pressing plate and drive rod can also realize rotation stop cooperation by key and keyway, at this time key and keyway
Constitute spline structure.
Elastic component in the present embodiment is torsional spring 11, and elastic component can be replaced by tension spring in other embodiments, tension spring its
Middle one end is connected on pressing plate, and the other end is connected on the rear wall or guide holder of cabinet body, is applied by tension spring to eccentric bearing member
Add the active force mobile towards eccentric shifting part.
Fixed ring 9 in the present embodiment is ring body, and in other embodiments, retaining groove replacement can also be used in fixed ring, corresponding
Needs be provided in earthing operating shaft can with retaining groove block cooperate stopping surface, while setting can pass through retaining groove
Bar or piece.
Ring body in the present embodiment is made of the fixed ring 9 for being fixed on 3 front end of driver plate, in other embodiments, can be
Ring body is arranged in the front side of driver plate, i.e. ring body is an integral structure with driver plate.
In other embodiments, locking plate can also be used other modes with drive rod and be fixedly connected, such as weld, for another example will lock
The bending of piece root is fitted on the outer peripheral surface of drive rod and is connected by threaded fastener, but need to pay attention to locking plate and drive rod it
Between should realize rotation stop.
Locking plate 13 in the present embodiment is through in the retaining groove 141 of locking plate locating rack 14, in other embodiments, can also be passed through
Other modes realize the axially position of drive rod, such as the interval setting circlip on drive rod, circlip and guide-localization support frame
Block cooperates along the longitudinal direction.
The earthing switch of invention and the embodiment of back door interlocking device, earthing switch and rear gate interlock in the present embodiment fill
It sets identical as the structure of interlock described in the specific embodiment of above-mentioned switchgear, repeats no more.
Claims (10)
1. switchgear, including cabinet body, the rear side of cabinet body is equipped with back door, is equipped with earthing switch in the middle part of the intracorporal front-rear direction of cabinet, opens
Closing cabinet further includes for realizing the interlock of earthing switch and rear gate interlock, and the interlock includes being driven with earthing switch
The operation front axle of cooperation further includes the operation rear axle for locking and the unlock back door with operation front axle linkage, feature
It is that the operation front axle and the axis for operating rear axle mutually stagger, and operation front axle is equipped with eccentric shifting part, operates and set on rear axle
Have for realizing operation front axle and operation rear axle linkage in the stirring lower swing to drive the rotation of operation rear axle of eccentric shifting part
Eccentric bearing member, interlock further includes the elasticity applied to eccentric bearing member towards the mobile active force of eccentric shifting part
Part.
2. switchgear according to claim 1, characterized in that the rear end of the operation front axle, which is equipped with, forms eccentric shifting part
Rotation push jack, the rotation push jack with operation the axis of front axle it is vertical.
3. switchgear according to claim 2, characterized in that the rear end of the operation front axle, which is provided with, radially to be extended
Slot, the rotation push jack is plugged in slot, and the fastener on the rear end face by being connected to operation front axle is fixed on
It operates on front axle.
4. switchgear according to claim 1 or 2 or 3, characterized in that the bias bearing member includes being set with after the activation
Body on axis, further include extended outwardly from body periphery setting with the plate body eccentric shifting part with, operate rear axle and
Spline structure is provided between body.
5. switchgear according to claim 4, characterized in that the elastic component is the torsional spring being set on operation rear axle.
6. switchgear according to claim 1 or 2 or 3, characterized in that the interlock further include fore-aft travel set
The driving member before operation between the rear end and back door of axis is set, the front end of driving member is equipped with the interlocking being set on operation front axle
The rear end of part, the operation front axle has the rotation stop section cooperated with locking part rotation stop, also has and is located on front side of rotation stop section to release
With the unlock section of locking part rotation stop.
7. switchgear according to claim 6, characterized in that the corresponding position of shaft rear end is equipped with before operating on cabinet body
Guide holder, the locking part guiding are assemblied on guide holder.
8. switchgear according to claim 7, characterized in that the locking part includes the ring for being connected to driving member front end
Body, the inner hole of ring body and the rotation stop section rotation stop of operation front axle cooperate, and the two sides up and down of ring body periphery are provided with convex block, are oriented to seat tool
There is upper lower ear plate, the guide groove with convex block guiding cooperation is provided on otic placode.
9. switchgear according to claim 1 or 2 or 3, characterized in that the rear end of the operation rear axle is provided with and back door
The locking plate of interlocking, axis of the locking plate perpendicular to operation rear axle；Corresponding position on cabinet body with the rear end of operation rear axle is equipped with lock
Piece locating rack is provided with the retaining groove vertically extended on the locking plate locating rack, and the locking plate is passed through out of described retaining groove,
And cooperate with the front and rear sides cell wall block of retaining groove.
10. earthing switch and back door interlocking device, characterized in that the earthing switch is claim 1- with back door interlocking device
9 described in any item interlocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168011.3A CN109920668B (en) | 2019-03-06 | 2019-03-06 | Earthing switch and back door interlocking device and switch cabinet using interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910168011.3A CN109920668B (en) | 2019-03-06 | 2019-03-06 | Earthing switch and back door interlocking device and switch cabinet using interlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109920668A true CN109920668A (en) | 2019-06-21 |
| CN109920668B CN109920668B (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910168011.3A Active CN109920668B (en) | 2019-03-06 | 2019-03-06 | Earthing switch and back door interlocking device and switch cabinet using interlocking device |
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| Country | Link |
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| CN (1) | CN109920668B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391099A (en) * | 2019-08-29 | 2019-10-29 | 武汉理工大学 | A kind of switchgear cabinet door interlock |
| CN111029204A (en) * | 2019-12-30 | 2020-04-17 | 青岛益和电气集团股份有限公司 | Locking device for rear door and grounding switch of switch cabinet |
| CN112185745A (en) * | 2019-07-04 | 2021-01-05 | 施耐德电器工业公司 | Grounding switch for switch cabinet and switch cabinet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424500A (en) * | 1994-04-08 | 1995-06-13 | Electro-Mechanical Corporation | Door-mounted operating mechanism for electrical switchgear |
| CN102005320A (en) * | 2010-12-02 | 2011-04-06 | 天水长城开关厂有限公司 | Interlocking device between electric grounding switch and circuit breaker |
| CN203760364U (en) * | 2014-03-06 | 2014-08-06 | 库柏(宁波)电气有限公司 | Back door interlocking device of high voltage switch cabinet |
| JP2015158046A (en) * | 2014-02-21 | 2015-09-03 | 株式会社東芝 | Handle device and cabinet |
| CN205428759U (en) * | 2016-04-06 | 2016-08-03 | 万控集团有限公司 | Door interlock behind cubical switchboard |
| CN207409422U (en) * | 2017-10-31 | 2018-05-25 | 兴机电器有限公司 | Earthing switch back door interlocking device |
-
2019
- 2019-03-06 CN CN201910168011.3A patent/CN109920668B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424500A (en) * | 1994-04-08 | 1995-06-13 | Electro-Mechanical Corporation | Door-mounted operating mechanism for electrical switchgear |
| CN102005320A (en) * | 2010-12-02 | 2011-04-06 | 天水长城开关厂有限公司 | Interlocking device between electric grounding switch and circuit breaker |
| JP2015158046A (en) * | 2014-02-21 | 2015-09-03 | 株式会社東芝 | Handle device and cabinet |
| CN203760364U (en) * | 2014-03-06 | 2014-08-06 | 库柏(宁波)电气有限公司 | Back door interlocking device of high voltage switch cabinet |
| CN205428759U (en) * | 2016-04-06 | 2016-08-03 | 万控集团有限公司 | Door interlock behind cubical switchboard |
| CN207409422U (en) * | 2017-10-31 | 2018-05-25 | 兴机电器有限公司 | Earthing switch back door interlocking device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185745A (en) * | 2019-07-04 | 2021-01-05 | 施耐德电器工业公司 | Grounding switch for switch cabinet and switch cabinet |
| CN112185745B (en) * | 2019-07-04 | 2023-07-07 | 施耐德电器工业公司 | Grounding switch for switch cabinet and switch cabinet |
| CN110391099A (en) * | 2019-08-29 | 2019-10-29 | 武汉理工大学 | A kind of switchgear cabinet door interlock |
| CN111029204A (en) * | 2019-12-30 | 2020-04-17 | 青岛益和电气集团股份有限公司 | Locking device for rear door and grounding switch of switch cabinet |
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|---|---|
| CN109920668B (en) | 2020-10-20 |
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