CN208478180U - A kind of interlock for three position mechanism and breaker mechanism - Google Patents
A kind of interlock for three position mechanism and breaker mechanism Download PDFInfo
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- CN208478180U CN208478180U CN201820827617.4U CN201820827617U CN208478180U CN 208478180 U CN208478180 U CN 208478180U CN 201820827617 U CN201820827617 U CN 201820827617U CN 208478180 U CN208478180 U CN 208478180U
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Abstract
The utility model relates to a kind of interlocks for three position mechanism and breaker mechanism, the three position mechanism includes hand shift plate and baffle in place, the breaker mechanism includes pushing component, interlock plate and combined floodgate bent plate, with hand shift plate and in place, the lower right of baffle is in contact for the upper end for pushing component, the left end of the interlock plate is mounted in circuit breaker frame by articulation piece, the middle part of the combined floodgate bent plate is mounted in circuit breaker frame by articulation piece, the structure of the interlock plate right end is adapted with the structure of combined floodgate bent plate upper end, when interlock plate right end and combined floodgate bent plate upper end are blocked, the combined floodgate bent plate of breaker can not close a floodgate, when interlock plate right end is separated with combined floodgate bent plate upper end, the combined floodgate bent plate of breaker can close a floodgate；It pushes component and is used to after hand shift plate is pushed with baffle right end in place transmit power to the divide-shut brake that interlock plate realizes breaker.The interlock for three position mechanism and breaker mechanism has the advantage of structure simplicity.
Description
Technical field
The utility model relates to switchgear field more particularly to a kind of interlockings for three position mechanism and breaker mechanism
Device.
Background technique
One of requirement of the anti-interlock of the five of switchgear is that breaker cannot close when earthing is in closing position
Lock, what which in practice required that is that breaker cannot close a floodgate when three position mechanism is in earthing position.
It is complicated, erroneous for installation in electrically and manually interlock between existing three position mechanism and breaker, and join
Lock mode is single, not can guarantee interlocking in place.
Utility model content
For this reason, it may be necessary to a kind of interlock for three position mechanism and breaker mechanism be provided, to solve three station machines
The problem of structure and breaker mechanism interlock complexity.
To achieve the above object, a kind of interlock for three position mechanism and breaker mechanism is inventor provided,
The three position mechanism includes hand shift plate and baffle in place, the hand shift plate and baffle is set side by side in place, and the hand is dialled
The middle part of the middle part of plate and in place baffle passes through articulation piece respectively and is mounted on three position mechanism mounting plate；
The breaker mechanism includes pushing component, interlock plate and combined floodgate bent plate, the upper end for pushing component and hand
The lower right of shift plate and in place baffle is in contact, and the left end of the interlock plate is mounted in circuit breaker frame by articulation piece,
The middle part of the combined floodgate bent plate is mounted in circuit breaker frame by articulation piece, the structure and combined floodgate bent plate of the interlock plate right end
The structure of upper end is adapted, and when interlock plate right end is blocked with combined floodgate bent plate upper end, the combined floodgate bent plate of breaker can not close a floodgate, when
When interlock plate right end is separated with combined floodgate bent plate upper end, the combined floodgate bent plate of breaker can close a floodgate；
The lower end for pushing component is flexibly connected by connector with the middle part of interlock plate, is pushed component and is used to dial in hand
Plate transmits power to the divide-shut brake that interlock plate realizes breaker after pushing with baffle right end in place.
Further, the hand shift plate lower right-hand side is provided with bottom plate, and notch is offered on the bottom plate, described to keep off in place
When plate is around with the rotation of the hinged place of three position mechanism mounting plate, the right end of baffle can be transported up and down in the notch of hand shift plate in place
It is dynamic.
Further, the pushing component includes bracket and idler wheel, and the idler wheel is transversely mounted on bracket, idler wheel around
Central axis rotation, with hand shift plate and in place, the lower right of baffle is in contact the wheel face of the idler wheel.
Further, the pushing component includes compression bar, elastic component, fixed hub and connecting plate, the upper end of the compression bar
The lower right of baffle is in contact with hand shift plate and in place, the elastic component include reset spring and respectively it is fixed on it under
First positioning cap and the second positioning cap at both ends, the fixed hub are connected to below the second positioning cap, and fixed hub passes through company
Fitting is fixedly connected with circuit breaker frame, and the compression bar is arranged in the first positioning cap, the second positioning cap, reset spring and fixing axle
In set, the compression bar is relatively fixed between the first positioning cap and compression bar during pushing, the lower end of the compression bar and connecting plate it is upper
End is connected, and the lower end of the connecting plate is flexibly connected by connector with the middle part of interlock plate.
Further, the pushing component further includes compression bar, elastic component, fixed hub and connecting plate, the compression bar it is upper
End is connected with pedestal lower end, and the elastic component includes reset spring and fixed the first positioning cap for descending both ends on it of difference
With the second positioning cap, the fixed hub is connected to below the second positioning cap, and fixed hub passes through connector and circuit breaker frame
It is fixedly connected with, the compression bar is arranged in the first positioning cap, the second positioning cap, reset spring and fixed hub, under the compression bar
Relatively fixed between the first positioning cap and compression bar during pressure, the lower end of the compression bar is connected with the upper end of connecting plate, the company
The lower end of plate is flexibly connected by connector with the middle part of interlock plate.
Further, clamping structure is provided on the compression bar, first positioning cap is arranged at clamping structure.
Further, first positioning cap is fixedly arranged below bracket, and the upper end of compression bar is connected under the first positioning cap
Side.
Further, the perpendicular slotted hole of own centre line is opened up in the middle part of the lower end of the connecting plate and interlock plate.
Further, the interlock plate right end is provided with clamp, is provided with above the combined floodgate bent plate and mutually fits with clamp
The card slot matched.
Further, the articulation piece is pin shaft.
It is different from the prior art, above-mentioned technical proposal has the advantages that this is used for three position mechanism and breaker mechanism
Interlock in by the hand shift plate of three position mechanism together with the Interlocking System of the interlock of baffle in place, by disconnected
Pushing component, interlock plate and the combined floodgate bent plate of road device mechanism interlock to realize, have the advantage of structure simplicity.
Detailed description of the invention
Fig. 1 is a kind of initial position that can be closed a floodgate for the interlock of three position mechanism and breaker mechanism of the present embodiment
Face and side view；
Fig. 2 be the present embodiment it is a kind of for the interlock of three position mechanism and breaker mechanism close a floodgate face and side view
Figure；
When Fig. 3 acts for the present embodiment is a kind of for the interlock hand shift plate of three position mechanism and breaker mechanism just
Depending on side view；
Fig. 4 be the present embodiment it is a kind of for the interlock of three position mechanism and breaker mechanism in place baffle act when
It faces and side view.
Description of symbols:
1, hand shift plate；
2, baffle in place；
31, bracket；
32, idler wheel；
33, compression bar；
34, fixed hub；
35, connecting plate；
36, reset spring；
37, the first positioning cap；
38, the second positioning cap；
4, interlock plate；
5, combined floodgate bent plate；
6, connector.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
The utility model provides a kind of interlocking dress for three position mechanism and breaker mechanism referring to FIG. 1 to FIG. 4,
It sets, the three position mechanism includes hand shift plate 1 and baffle 2 in place, is set side by side before and after hand shift plate and baffle in place, the hand is dialled
The middle part of the middle part of plate and in place baffle passes through articulation piece respectively and is mounted on three position mechanism mounting plate.It needs to carry out herein
Illustrate: referring to the interlude any position of hand shift plate or the middle position of hand shift plate in the middle part of hand shift plate, in place baffle
The middle part interlude any position that refers to baffle in place or the middle position of baffle in place.In the present embodiment, hand shift plate
Baffle is different from the articulated position of three position mechanism mounting plate in place, specifically, hand shift plate and in place baffle and three station machines
Structure mounting plate be it is hinged by pin shaft, pin shaft in hand shift plate and the pin shaft center line on baffle in place are not on the same line.
Three stations in electric operating, be failure to actuate by hand shift plate, and baffle acts in place；Three stations in manual operation, dial by hand
Plate movement, baffle is failure to actuate in place.
The breaker mechanism includes pushing component, interlock plate 4 and combined floodgate bent plate 5, and the effect for pushing component is
When three position mechanism movement, the lower pressure of baffle is sent at interlock plate by the hand shift plate in three position mechanism and in place,
It allows between interlock plate and combined floodgate bent plate and blocks, so that breaker mechanism is unable to complete feed motion, when the movement of three position mechanism
After the completion, it pushes component and returns to initial position, the interlock plate of breaker mechanism is separated from combined floodgate bent plate, it can be achieved that breaker mechanism
Combined floodgate；The effect of interlock plate and combined floodgate bent plate is the component for realizing interlocking to breaker mechanism when three position mechanism is acted.
The lower right of baffle is in contact with hand shift plate and in place for the upper end for pushing component, hand shift plate and keeps off in place
When plate acts, hand shift plate and in place baffle can be rotated clockwise around the hinged place with three position mechanism mounting plate, in rotation
In the process, pushing component thereunder is arranged to complete the interlocking of breaker in hand shift plate and the lower right pushing of baffle in place
Movement.
The left end of the interlock plate is mounted in circuit breaker frame by articulation piece, passes through hinge in the middle part of the combined floodgate bent plate
Fitting is mounted in circuit breaker frame, needs to be illustrated herein: referring to the centre of combined floodgate bent plate in the middle part of combined floodgate bent plate
The middle position of section any position or combined floodgate bent plate.The structure of the interlock plate right end and the structure of combined floodgate bent plate upper end are mutually fitted
Match, when interlock plate right end is blocked with combined floodgate bent plate upper end, the combined floodgate bent plate of breaker can not close a floodgate, and when interlock plate right end and close
When lock bent plate upper end separates, the combined floodgate bent plate of breaker can close a floodgate.Interlock plate turns clockwise around the hinged place with circuit breaker frame
It can be blocked with combined floodgate bent plate after dynamic, to complete the feed motion of breaker, therefore combined floodgate bent plate can not be rotated toward interlock plate direction
Achieve the purpose that prevent breaker closing.Interlock plate rotates counterclockwise rear and combined floodgate bent plate around the hinged place with circuit breaker frame
Separation, combined floodgate bent plate can complete the feed motion of breaker toward the rotation of the direction of interlock plate.
The lower end for pushing component is flexibly connected by connector with the middle part of interlock plate, pushing component by hand shift plate with
And the lower pressure of baffle is transferred to the middle part of interlock plate in place, and push living by connector in the middle part of the lower end and interlock plate of component
Dynamic connection avoids during pushing power effect, and interlock plate, which is suppressed, can not extremely rotate, and pushes component for lower pressure and is transferred to interlocking
During plate, pushing the connector between component and interlock plate can be mobile dead to prevent suppressing in junction.
In certain preferred embodiments, the hand shift plate lower right-hand side is provided with bottom plate, offers slot on the bottom plate
Mouthful, when the baffle in place is around with the rotation of the hinged place of three position mechanism mounting plate, the right end of baffle can be in hand shift plate in place
Notch in move up and down.The hand shift plate and baffle in place are vertically arranged, and bottom plate is laterally setting, and bottom plate is from hand shift plate
Lower right-hand side extends to baffle direction in place, and the notch position opened up on bottom plate is corresponding with the right end position of baffle in place, arrives
When position baffle is rotated clockwise around the hinged place with three position mechanism mounting plate, the right end of baffle is from the top of bottom plate through slot in place
Mouth turns to below bottom plate.The beneficial effect being arranged in this way is that the structure of interlock can be more compact.
In certain preferred embodiments, the pushing component includes bracket 31 and idler wheel 32, and the idler wheel is laterally pacified
On bracket, idler wheel is rotated around central axis, the wheel face of idler wheel lower right phase of baffle with hand shift plate and in place
Contact.The bracket is H-shaped bracket, and the roller bearing both ends of the idler wheel are respectively erected in the both ends of bracket, and idler wheel can be on bracket
It is freely rotated around roller bearing, hand shift plate and baffle rotates clockwise in place is pressed down against pushing component process, the idler wheel on bracket
Opponent's shift plate and the in place frictional force of the lower right of baffle can be reduced, sliding friction is transformed into rolling friction, reduces friction
Consumed function improves interlocking efficiency.
In certain preferred embodiments, the pushing component includes compression bar 33, elastic component, fixed hub 34 and connecting plate
35, the effect of the elastic component be when three position mechanism hand shift plate and in place baffle movement in place after, the bullet of elastic component
Property restoring force will push the whole lifting upwards of component, be connected to and push the interlock plate right end of component lower end and be lifted, interlock plate with
Combined floodgate bent plate is separated, and the combined floodgate bent plate of breaker mechanism can realize combined floodgate, and the effect of the fixed hub is for compression bar
It moves up and down and fixed channel is provided, guarantee that the pressing action for pushing component is more steady, the effect of the connecting plate is by compression bar
Pressure transmission is at interlock plate；
With hand shift plate and in place, the lower right of baffle is in contact for the upper end of the compression bar, and the elastic component includes resetting bullet
Spring 36 and respectively fixed the first positioning cap 37 and the second positioning cap 38 for descending both ends on it, the fixed hub are connected to the
Below two positioning caps, fixed hub is fixedly connected with by connector and circuit breaker frame, and the compression bar is arranged in the first positioning cap, the
In two positioning caps, reset spring and fixed hub, the compression bar is relatively solid between the first positioning cap and compression bar during pushing
Fixed, the lower end of the compression bar is connected with the upper end of connecting plate, and the lower end of the connecting plate is living by the middle part of connector and interlock plate
Dynamic connection；
In embodiment work, hand shift plate in three position mechanism or in place baffle around with three position mechanism mounting plate
Hinged place rotation when, in the upper end of compression bar, compression bar is pressed down against the right end pressing force of hand shift plate or in place baffle,
The first positioning cap being set on compression bar is moved downward with compression bar, and it is fixed not to be fixed on the fixed hub in circuit breaker frame
Dynamic, the second positioning cap being fixedly connected with fixed hub is also fixed, therefore answering between the first positioning cap and the second positioning cap
Position spring is extruded generation elastic deformation, and the lower end of compression bar continues to move downward, be connected to the connecting rod of compression bar lower end also by
Lower pushing, connecting rod squeeze interlock plate, and interlock plate is rotated towards combined floodgate bent plate direction, and the right end of interlock plate is upper with combined floodgate bent plate
After cooperation is blocked between end, prevents breaker mechanism and close a floodgate.When the hand shift plate in three position mechanism or the knot of baffle movement in place
After beam, the upper end of compression bar be not pressurized power effect, reset spring itself restoring force effect under return to original state, by compression bar
It boosts upwards, the connecting plate for being connected to compression bar lower end lifts interlock plate, and interlock plate is separated with combined floodgate bent plate, so that it may realize open circuit
The combined floodgate of device；
In certain particularly preferred embodiments, clamping structure is provided on the compression bar, the first positioning cap card is set
It is arranged at clamping structure, on compression bar fluted, the first positioning cap is fastened on compression bar, and in other embodiments, compression bar is round
The upper diameter lower part diameter of column construction, compression bar is big, and the first positioning cap is inserted in compression bar from below compression bar, is reloaded into multiple
Position spring, the second positioning cap and fixed hub, the beneficial effect is that, under the first positioning cap can be dismantled from compression bar
Come.
In certain preferred embodiments, the pushing component includes bracket and idler wheel, and the idler wheel is transversely mounted on
On bracket, idler wheel is rotated around central axis, and with hand shift plate and in place, the lower right of baffle is in contact the wheel face of the idler wheel.
The pushing component further includes compression bar, elastic component, fixed hub and connecting plate, and the upper end of the compression bar is connected with pedestal lower end
It connects, the elastic component includes reset spring and fixed the first positioning cap and the second positioning cap for descending both ends on it of difference, institute
It states fixed hub to be connected to below the second positioning cap, fixed hub is fixedly connected with by connector and circuit breaker frame, the compression bar
It is arranged in the first positioning cap, the second positioning cap, reset spring and fixed hub, the first positioning during the compression bar pushes
Relatively fixed between cap and compression bar, the lower end of the compression bar is connected with the upper end of connecting plate, and the lower end of the connecting plate passes through connection
Part 6 is flexibly connected with the middle part of interlock plate；
In embodiment work, the hand shift plate of three position mechanism is with baffle in place around the hinge with three position mechanism mounting plate
When connecing place's rotation, the right end of hand shift plate and baffle in place pushes power and acts on the idler wheel of bracket, and bracket is pressed down against, pressure
It is transferred on compression bar from bracket, to prevent the feed motion of breaker.The beneficial effect is: by compression bar and hand shift plate, in place
Sliding friction between baffle is transformed into rolling friction, reduces function consumed by rubbing, and improves interlocking efficiency；
In certain particularly preferred embodiments, clamping structure is provided on the compression bar, the first positioning cap card is set
It is arranged at clamping structure, on compression bar fluted, the first positioning cap is fastened on compression bar, and in other embodiments, compression bar is round
The upper diameter lower part diameter of column construction, compression bar is big, and the first positioning cap is inserted in compression bar from below compression bar, is reloaded into multiple
Position spring, the second positioning cap and fixed hub, the beneficial effect is that, under the first positioning cap can be dismantled from compression bar
Come；
In certain particularly preferred embodiments, first positioning cap is fixedly arranged below bracket, the upper end connection of compression bar
In the lower section of the first positioning cap, the hand shift plate of three position mechanism turns with baffle in place around with the hinged place of three position mechanism mounting plate
When dynamic, bracket acts directly on the lower pressure that hand shift plate is come with the transmission of baffle in place on the first positioning cap, and setting is fixed first
The compression bar that position cap issues is pressed down against, and the reset spring between the first positioning cap and the second positioning cap is extruded deformation.
In certain particularly preferred embodiments, own centre line is opened up in the middle part of the lower end of the connecting plate and interlock plate and is mutually hung down
It can be connected by bolt and nut between in the middle part of straight slotted hole, the lower end of connecting plate and interlock plate, lower pressure is transmitted to connection by connecting plate
It when jam plate, is moved in the slotted hole that bolt can open up on connecting plate and interlock plate, avoids suppressing extremely, cause the interlock failure.
In certain preferred embodiments, the articulation piece is pin shaft.
In certain preferred embodiments, the interlock plate right end is provided with clamp, the top setting of the combined floodgate bent plate
Have a card slot compatible with clamp, the shape of clamp be it is rectangular-shaped, the card slot on combined floodgate bent plate be also it is rectangular-shaped, interlock plate and close
When lock bent plate blocks, refer to that rectangular-shaped clamp is inserted into rectangular-shaped card slot, so that combined floodgate bent plate will not be towards interlock plate direction
Rotation has the function that prevent breaker closing.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
The scope of patent protection of the utility model.Therefore, based on the innovative idea of the utility model, embodiment described herein is carried out
Change and modification or equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly
Or above technical scheme is used in other related technical areas indirectly, it is included in the protection model of the utility model patent
Within enclosing.
Claims (10)
1. a kind of interlock for three position mechanism and breaker mechanism, it is characterised in that: the three position mechanism includes
It hand shift plate and baffle in place, the hand shift plate and baffle is set side by side in place, and the middle part of the hand shift plate and keeps off in place
The middle part of plate passes through articulation piece respectively and is mounted on three position mechanism mounting plate；
The breaker mechanism includes pushing component, interlock plate and combined floodgate bent plate, the upper end for pushing component and hand shift plate
And the lower right of baffle is in contact in place, the left end of the interlock plate is mounted in circuit breaker frame by articulation piece, described
The middle part of combined floodgate bent plate is mounted in circuit breaker frame by articulation piece, the structure of the interlock plate right end and combined floodgate bent plate upper end
Structure be adapted, when interlock plate right end and combined floodgate bent plate upper end are blocked, the combined floodgate bent plate of breaker can not close a floodgate, and work as interlocking
When plate right end is separated with combined floodgate bent plate upper end, the combined floodgate bent plate of breaker can close a floodgate；
The lower end for pushing component is flexibly connected by connector with the middle part of interlock plate, push component be used in hand shift plate and
Baffle right end transmits power to the divide-shut brake that interlock plate realizes breaker in place after pushing.
2. the interlock according to claim 1 for three position mechanism and breaker mechanism, it is characterised in that: described
Hand shift plate lower right-hand side is provided with bottom plate, and notch is offered on the bottom plate, and the baffle in place is installed around with three position mechanism
When the hinged place rotation of plate, the right end of baffle can move up and down in the notch of hand shift plate in place.
3. the interlock according to claim 1 for three position mechanism and breaker mechanism, it is characterised in that: described
Pushing component includes bracket and idler wheel, and the idler wheel is transversely mounted on bracket, and idler wheel is rotated around central axis, the rolling
With hand shift plate and in place, the lower right of baffle is in contact the wheel face of wheel.
4. the interlock according to claim 1 for three position mechanism and breaker mechanism, it is characterised in that: described
Pushing component includes compression bar, elastic component, fixed hub and connecting plate, the upper end of compression bar baffle with hand shift plate and in place
Lower right is in contact, and the elastic component includes reset spring and fixed the first positioning cap and second for descending both ends on it of difference
Positioning cap, the fixed hub are connected to below the second positioning cap, and fixed hub is fixedly connected with by connector and circuit breaker frame,
The compression bar is arranged in the first positioning cap, the second positioning cap, reset spring and fixed hub, during the compression bar pushes
Relatively fixed between first positioning cap and compression bar, the lower end of the compression bar is connected with the upper end of connecting plate, the lower end of the connecting plate
It is flexibly connected by connector with the middle part of interlock plate.
5. the interlock according to claim 3 for three position mechanism and breaker mechanism, it is characterised in that: described
Pushing component further includes compression bar, elastic component, fixed hub and connecting plate, and the upper end of the compression bar is connected with pedestal lower end, institute
Stating elastic component includes reset spring and fixed the first positioning cap and the second positioning cap for descending both ends on it of difference, the fixation
Axle sleeve is connected to below the second positioning cap, and fixed hub is fixedly connected with by connector and circuit breaker frame, and the compression bar is arranged in
In first positioning cap, the second positioning cap, reset spring and fixed hub, the first positioning cap and pressure during the compression bar pushes
Relatively fixed between bar, the lower end of the compression bar is connected with the upper end of connecting plate, and the lower end of the connecting plate passes through connector and connection
The middle part of jam plate is flexibly connected.
6. the interlock according to claim 4 or 5 for three position mechanism and breaker mechanism, it is characterised in that:
Clamping structure is provided on the compression bar, first positioning cap is arranged at clamping structure.
7. the interlock according to claim 5 for three position mechanism and breaker mechanism, it is characterised in that: described
First positioning cap is fixedly arranged below bracket, and the upper end of compression bar is connected to the lower section of the first positioning cap.
8. the interlock according to claim 4 or 5 for three position mechanism and breaker mechanism, it is characterised in that:
The perpendicular slotted hole of own centre line is opened up in the middle part of the lower end of the connecting plate and interlock plate.
9. the interlock according to claim 1 for three position mechanism and breaker mechanism, it is characterised in that: described
Interlock plate right end is provided with clamp, and card slot compatible with clamp is provided with above the combined floodgate bent plate.
10. the interlock according to claim 1 for three position mechanism and breaker mechanism, it is characterised in that: institute
Stating articulation piece is pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820827617.4U CN208478180U (en) | 2018-05-30 | 2018-05-30 | A kind of interlock for three position mechanism and breaker mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820827617.4U CN208478180U (en) | 2018-05-30 | 2018-05-30 | A kind of interlock for three position mechanism and breaker mechanism |
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| CN208478180U true CN208478180U (en) | 2019-02-05 |
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| CN201820827617.4U Active CN208478180U (en) | 2018-05-30 | 2018-05-30 | A kind of interlock for three position mechanism and breaker mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511231A (en) * | 2018-05-30 | 2018-09-07 | 福建中能电气有限公司 | A kind of interlock for three position mechanism and breaker mechanism |
-
2018
- 2018-05-30 CN CN201820827617.4U patent/CN208478180U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511231A (en) * | 2018-05-30 | 2018-09-07 | 福建中能电气有限公司 | A kind of interlock for three position mechanism and breaker mechanism |
| CN108511231B (en) * | 2018-05-30 | 2024-02-23 | 福建中能电气有限公司 | Interlocking device for three-station mechanism and circuit breaker mechanism |
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