CN106024491A - Manual locking device of operating mechanism - Google Patents
Manual locking device of operating mechanism Download PDFInfo
- Publication number
- CN106024491A CN106024491A CN201610438439.1A CN201610438439A CN106024491A CN 106024491 A CN106024491 A CN 106024491A CN 201610438439 A CN201610438439 A CN 201610438439A CN 106024491 A CN106024491 A CN 106024491A
- Authority
- CN
- China
- Prior art keywords
- switching
- switch
- operating mechanism
- control loop
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a manual locking device of an operating mechanism. The manual locking device comprises a base, a switching cover and an electric control loop change-over switch, wherein the base is fixed at the front end of a manual operation hole of the operating mechanism; the switching cover is arranged at the front end of the base in a sliding manner; the electric control loop change-over switch is connected to an electric control loop of the operating mechanism; an interlock electromagnet is arranged in the base; the upper end of the base is provided with a switching signal microswitch through a microswitch bracket; the interlock electromagnet is connected to the electric control loop of the operating mechanism through an interlock electromagnet change-over switch; the electric control loop change-over switch and the interlock electromagnet change-over switch are microswitches and are symmetrically fixed in the base respectively; a switching block is fixed at the lower part of the inner side of the switching cover and a strip clamping groove is arranged in the upper part of the inner side; the switching block is arranged between the electric control loop change-over switch and the interlock electromagnet change-over switch; and a boss with a slope is arranged at one side, close to the electric control loop change-over switch, of the switching block and a groove with the slopes at two ends is arranged in one side, close to the interlock electromagnet change-over switch.
Description
Technical field
The present invention relates to the high-voltage switch gear in high-tension power transmission and transformation equipment, be specially a kind of operating mechanism and manually close
Locking device.
Background technology
In high voltage power transmission and transforming system, high-voltage switch gear is one of visual plant in system, its have close,
Cutoff high circuit, the function of protection circuit safe operation.Operating mechanism is the power source of high-voltage switch gear,
Being the heart of high-voltage switch gear, in addition to automatically protecting, the operation of operating mechanism is to realize under manual control
, operation can be the most electronic.For avoiding human operational error to cause the person, equipment to injure thing
Therefore generation, operating mechanism must be provided with careful anti-misoperation function.
Summary of the invention
For problems of the prior art, the present invention provides a kind of operating mechanism manual locking device,
Compact to design, simple in construction, easily operated, it is possible to prevent the maloperation of operating mechanism.
The present invention is to be achieved through the following technical solutions:
A kind of operating mechanism manual locking device, including the end being fixed on front end, operating mechanism manual operation hole
Seat, is slidably arranged in the switching lid of pan frontward end, and be connected in operating mechanism Electronic control loop is electronic
Control loop switch switch；
Being provided with interlocking electromagnet in described base, the upper end of base is provided with by microswitch support
Switching signal microswitch；Interlocking electromagnet is connected to operating mechanism electricity by interlocking electromagnet switching switch
In dynamic control loop；Electronic control loop switch switch and interlocking electromagnet switching switch are fine motion and open
Close, and be respectively symmetrically and be fixed in base；
The interior side-lower of described switching lid is fixed with handoff block, and inside front is provided with long clamp bar slot；Switching
Block is arranged between Electronic control loop switch switch and interlocking electromagnet switching switch, and handoff block is near electricity
The dynamic side controlling loop switch switch is provided with the boss on band slope, near interlocking electromagnet switching switch
Side be provided with the groove that two ends are slope；
Interlocking electromagnet protruding parts of its dynamic core ends under electroless state is inserted in switching and covers setting
Long clamp bar slot in；
Under electronic operating condition i.e. original state, switching lid hides in manual operation square hole front, switching lid
Upper end and switching signal microswitch contact separation, switching signal microswitch disconnects；Electronic control loop
The contact of switching switch separates with the boss side of handoff block, Electronic control loop switch switch Guan Bi；Connection
Lock electric magnet switching switch and groove one side contacts of handoff block, contact point is positioned at cutting of groove front end outer side
Changing on block, interlocking electromagnet switching switches off；
Under the conditions of manual working, switching lid slips off and exposes manual operation square hole, and switching covers end and switching signal
Microswitch contact, switching signal microswitch closes；The contact of Electronic control loop switch switch
With boss one side contacts of handoff block, contact point is positioned on boss, and Electronic control loop switch switch is disconnected
Open；Interlocking electromagnet switching switch and groove one side contacts of handoff block, contact point is positioned at groove, connection
Lock electric magnet switching switch Guan Bi.
Preferably, the both sides of the edge of base are provided with slide rail, and switching lid both sides are provided with track；Slide rail is embedding
Formed in entering track and be slidably connected.
Preferably, base is provided with semicircle shape breach near the one end in manual operation hole.
Preferably, connected by tension spring respectively in both sides between base switching lid；Under original state,
Tension spring and all microswitch reset.
Preferably, the protruding parts of interlocking electromagnet its dynamic core ends under electroless state inserts strip card
In the middle part of groove, when switching lid moves to opening direction, behind manual operation hole, exposed portion, dynamic iron core limits and cuts
Change lid stop motion.
Preferably, switching cap surface is provided with label and handle, handle, label, switching lid and switching
Block is fixed together by screw combination.
Further, switching covers to move with interlocking electromagnet and is provided with operation pin insertion on the position that iron core is relative
Hole, operation pin is connected on handle.
Preferably, when operating mechanism control loop is charged, switching lid is moved to opening direction, motion
Period；
The control loop switch being close to this side switch is switched to by handoff block convex platform side by closure state
Off-state, completes to switch electrically and manually；
The interlocking electromagnet being close to this side switching switch is switched by handoff block upper groove side by off-state
Becoming closure state, interlocking electromagnet is energized, and along with the continuation of handoff block is slided, interlocking electromagnet switching is opened
The contact closed is switched to again, after tiding over groove, the state of cut-offfing；
After motion, switching signal microswitch is closed by the upper end of switching lid, and sends out to control centre
Go out just at the signal of manual operation.
Compared with prior art, the present invention has a following useful technique effect:
The manual locking device of operating mechanism of the present invention, by being arranged on the interlocking electromagnetism controlled in loop
Ferrum, can effectively prevent the maloperation to operating mechanism, when controlling after the power-off of loop, interlocking electromagnet without
Method works, and therefore can guarantee that mechanism cannot carry out divide-shut brake to mechanism in the case of not possessing operating condition
Operation, i.e. mechanism both cannot be carried out electric operating when not charged and also cannot be carried out hand operation；And at tool
In the case of standby operating condition, by the adhesive of interlocking electromagnet iron core, and cover cutting of linkage with switching
Change the block effect to both sides microswitch, it is possible to the machinery between realizing manually, electrically, electric interlock,
Make operating mechanism cannot be carried out electric operating when manual operation, cannot be carried out during electric operating manually grasping
Make, it is ensured that the safety of operation.
Accompanying drawing explanation
Fig. 1 is the structure front view of manual locking device of the present invention.
Fig. 2 is the structure rearview of manual locking device of the present invention.
Fig. 3 is the structure upward view of manual locking device of the present invention.
Fig. 4 is the structure positive view of manual locking device of the present invention.
Fig. 5 is the structure side sectional view of manual locking device of the present invention.
Fig. 6 is the structural side view of manual locking device of the present invention.
In figure: 1. label；2. handle；3. operation pin；4. interlocking electromagnet；5. Electronic control loop switch
Switch；6. switching lid；7. base；8. screw；9. handoff block；10. interlocking electromagnet switching switch；11.
Switching signal microswitch；12. microswitch mounting frames；13. tension springs；14. screws.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be to the present invention
Explanation rather than restriction.
One operating mechanism manual locking device of the present invention, including a base 7, and base 7 uses screw
8 fronts, manual operation hole being fixed on operating mechanism.Base 7 front is provided with switching lid 6, non-
Under operating condition, switching lid 6 covering operates square hole front at mechanism manual.The left and right sides of switching lid 6 sets
In respect of gathering sill, inner central is provided with a handoff block 9.As shown in Figure 4, base 7 left and right sides
Edge designs has guide rail, both sides to be arranged above switching signal microswitch 11 and mounting bracket 12 thereof,
Top center is provided with interlocking electromagnet 4, and below the interlocking electromagnet 4 of base 7, the right and left is installed
There is the microswitch in switching Electronic control loop as controlling loop switch switch 5 and switch-interlocking electric magnet
Microswitch as interlocking electromagnet switch switch 10.As it is shown on figure 3, base 7 and switching lid 6
Between cooperatively form slide rail by guide rail and gathering sill and connect, as shown in Figure 2 and Figure 6, each other and set
In respect of tension spring 13, under external force and interlocking electromagnet 4 are energized, switching lid 6 can do along base 7
Sliding up and down, after external force eliminates, switching lid 6 sets back under the effect of tension spring 13.Such as Fig. 5
Shown in, the dynamic iron core of interlocking electromagnet 4 is just to the long clamp bar slot inside switching lid 6, under electroless state
Electric magnet 4 moves the protruding parts of core ends and is inserted in long clamp bar slot.Move after interlocking electromagnet 4 energising
Iron core is inhaled into, and departs from the long clamp bar slot inside switching lid 6.
As it is shown in figure 1, the outer surface at switching lid 6 is pasted with manual operation prompting label 1, lower section sets
Put an operation handle 2, on the label 1 of this manual locking device and switching lid 6, with electric magnet 4
Relative Position Design has operation pin 3 to insert hole, and is additionally designed with operation pin 3, to facilitate mechanism to exist
Also manual operation can be realized in the case of uncharged.As it is shown in figure 5, with screw 14 by handle 2, inscription
Board 1, switching lid 6 and handoff block 9 are installed together.As shown in Figure 1 and Figure 5, switching lid 6 on
The Position Design that electric magnet 4 is relative has operation pin insertion apertures, and is additionally designed with operation pin 3, in mechanism
By operation pin 3, electric magnet 4 can be moved iron core in the case of uncharged and eject the strip inside switching lid 6
Draw-in groove so that switching lid 6 can be promoted to the position that hand operation square hole is completely exposed, to realize manually
Operation.Content on manual operation prompting label 1 is manual locking device application notice, with convenient
Operator operates.
As it is shown on figure 3, base 7 is bent shaping by thin plate, cross section inType, two bendings
Edge as slide rail.Semicircle shape breach is arranged at base 7 bottom, to facilitate the insertion of operation handle.Middle
Symmetrical switching respectively as control loop switch switch 5 and interlocking electromagnet equipped with two microswitch switchs
10.The upper middle position of base 7 has installs the hole of electric magnet and equipped with interlocking electromagnet 4, top
Both sides or side switching signal microswitch 11 and mounting bracket 12 thereof are installed.
Switching lid is 6 compressing by organic material, its cross section inType, at two edges
There is elongated slot, as track, coordinate with the base 7 as slide rail.In the middle of top inside switching lid 6
Position Design has long clamp bar slot, centre position, middle part equipped with handoff block 9, outer surface equipped with label 1, under
Portion is equipped with handle 2, and four are combined by screw 14.
Wherein, as shown in Figure 4, handoff block 9 is compressing by organic material, and its profile is substantially in elongated
Square type, the side of its end is provided with the boss on band slope, a side, and opposite side is near middle position
It is provided with the groove that both sides are ramped shaped.In handoff block 9 with in switching lid 6 sliding processes, switch
On block 9, the control loop switch being close to this side switch 5 is cut by the boss on side band slope by closure state
Change off-state into, complete to switch electrically and manually；The groove on opposite side band slope will be close to this side
Interlocking electromagnet switching switch 10 switched to closure state by off-state, interlocking electromagnet 4 leads to
Electricity, along with the continuation of handoff block 9 is slided, the roller of this side microswitch is switched to again after tiding over groove
Cut-off state.
As shown in Figure 6, when switching lid 6 slides to the operation insertable position of handle, switching lid 6 will
Switching signal microswitch 11 switches, and sends just at the signal of manual operation to control centre.Work as actuating
When mechanism is charged, handle 2 can be held and be easy to cover switching 6 pull-ups, first during switching lid 6 pull-ups
First pass through the boss cutting-off controlling power supply on band slope, side, connect interlocking electromagnet by groove one end afterwards
The power supply of 4, cuts off the power supply of interlocking electromagnet 4, followed by finally by switching by the groove other end
Signal microswitch 11 sends just at the signal of manual operation to control centre.
Concrete, the present invention includes that a base 7, base 7 screw 8 are fixed on operating mechanism
Front, manual operation hole, base 7 left and right sides is designed with guide rail.Base 7 front is provided with switching lid
6, switching lid 6 inner central installs a handoff block 9.There are gathering sill, the end in switching lid 6 left and right sides
The guide rail of seat 7 left and right sides is embedded in the gathering sill of switching lid 6 left and right sides, and switching lid 6 is together with dress
Handoff block 9 thereon can move back and forth along guide-track groove direction, base 7 and switching lid 6 it
Between be each side attached with a tension spring 13.Both sides or side peace above base 7
Equipped with a switching signal microswitch 11 and microswitch mounting frame 12, the middle part above base 7
Position is provided with interlocking electromagnet 4, and interlocking electromagnet 4 its dynamic iron core in the case of without electricity is limited in switching
In long clamp bar slot inside lid 6.On base 7, lower section the right and left of interlocking electromagnet 4 is provided with two
Individual microswitch, side microswitch is that interlocking electromagnet switches switch 10, and opposite side is Electronic control
Loop switch switch 5.The handoff block 9 of switching lid 6 inner central is used for below switch-interlocking electric magnet 4
Two microswitch.Outer surface at switching lid 6 is pasted with manual operation prompting label 1, and lower section sets
Put an operation handle 2, with screw 8, handle 2, label 1, switching lid 6 and handoff block 9 are installed
Together.During power station in-site installation, maintenance during mechanism's non-transformer, this device is also equipped with an operation
Pin 3 carries out manual unlocking as key to this device.
When operating mechanism is allowed to operation, if now operating mechanism being operated manually, 2 will be shaken hands
Pulling up, handoff block 9 is lifted by upward sliding with switching lid 6 simultaneously, cuts off Electronic control successively and returns
Road, connect electric magnet loop, tripping magnet loop, to being completely exposed the hand operation square hole of mechanism,
Connect manual operating signal loop afterwards.
When operating mechanism is not allowed to operation, when i.e. controlling loop dead electricity, no matter whether microswitch cuts
Change, the dynamic iron core of interlocking electromagnet 4 all will not adhesive, dynamic iron core be stuck in switching lid inside long clamp bar slot
In, make switching lid cannot on lift, hand operation square hole cannot expose, it is impossible to manually grasps mechanism
Make.
On the premise of allowing manual operation, after manual operation terminates and extracts wind, switching lid 6 exists
Drive handoff block 9 lower sliding cover together to stop under the pulling force of tension spring 13 and shake operation square hole, own simultaneously
Microswitch resets.
The present invention is also provided with one and is only limitted to installation, the non-transformer handle hole of debugging stage use and operation
Pin.Operating mechanism control loop cannot hot line job time, owing to the dynamic iron core of interlocking electromagnet 4 cannot
Adhesive, dynamic iron core is stuck in the long clamp bar slot of switching lid, cause switching lid cannot on lift and expose hand behaviour
Make square hole, now operation pin 3 is inserted the non-transformer handle hole of switching lid 6, by dynamic iron core top from upper end
Going out the long clamp bar slot in inner side of switching lid 6, making switching lid 6 obtain above lifting, until being completely exposed hand operation
Square hole.
The present invention is not limited only to operating mechanism manual block, and being also applied for other has setting of similar safety requirements
Standby, facility.At above-mentioned middle combination accompanying drawing, basic structure and the use principle of this device are described,
But the invention is not limited in above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only shown
Meaning property, those skilled in the art is under the enlightenment of the present invention, without departing from spirit of the invention and power
Profit requires under the ambit protected, it is also possible to making a lot of form, these belong to the guarantor of the present invention
Within protecting.
Claims (8)
1. an operating mechanism manual locking device, it is characterised in that include being fixed on operating mechanism manual
The base (7) of handle hole front end, is slidably arranged in the switching lid (6) of base (7) front end, is connected to
Electronic control loop switch switch (5) in operating mechanism Electronic control loop；
Being provided with interlocking electromagnet (4) in described base (7), fine motion is passed through in the upper end of base (7)
Switch bracket (12) is provided with switching signal microswitch (11)；Interlocking electromagnet (4) is by interlocking
Electric magnet switching switch (10) is connected in operating mechanism Electronic control loop；Electronic control loop switch
Switch (5) and interlocking electromagnet switching switch (10) and are microswitch, and are respectively symmetrically and are fixed on
In base (7)；
The interior side-lower of described switching lid (6) is fixed with handoff block (9), and inside front is provided with strip
Draw-in groove；Handoff block (9) is arranged on Electronic control loop switch switch (5) and interlocking electromagnet switching is opened
Closing between (10), handoff block (9) is provided with near the side of Electronic control loop switch switch (5)
With the boss on slope, it is slope that the side of interlocking electromagnet switching switch (10) is provided with two ends
Groove；
Interlocking electromagnet (4) protruding parts of its dynamic core ends under electroless state is inserted in switching lid
(6) in the upper long clamp bar slot arranged；
Under electronic operating condition i.e. original state, switching lid (6) hides in manual operation square hole front,
Switching lid (6) upper end and switching signal microswitch (11) contact separation, switching signal microswitch
(11) disconnect；The contact of Electronic control loop switch switch (5) and the boss side of handoff block (9)
Separate, Electronic control loop switch switch (5) Guan Bi；Interlocking electromagnet switching switchs (10) and cuts
Changing groove one side contacts of block (9), contact point is positioned in the handoff block (9) of groove front end outer side, connection
Lock electric magnet switching switch (10) disconnects；
Under the conditions of manual working, switching lid (6) slips off and spills manual operation square hole, switching lid (6) upper end
With switching signal microswitch (11) contact, switching signal microswitch (11) closes；Electronic
Controlling the contact of loop switch switch (5) and boss one side contacts of handoff block (9), contact point is positioned at
On boss, Electronic control loop switch switch (5) disconnects；Interlocking electromagnet switching switch (10) with
Groove one side contacts of handoff block (9), contact point is positioned at groove, interlocking electromagnet switching switch
(10) Guan Bi.
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that the end
The both sides of the edge of seat (7) are provided with slide rail, and switching lid (6) both sides are provided with track；Slide rail embeds rail
Formed in road and be slidably connected.
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that the end
Seat (7) is provided with semicircle shape breach near the one end in manual operation hole.
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that the end
Connected by tension spring (13) respectively in both sides between seat (7) switching lid (6)；Original state
Under, tension spring (13) and all microswitch reset.
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that connection
Lock electric magnet (4) protruding parts of its dynamic core ends under electroless state is inserted in the middle part of long clamp bar slot,
When switching lid (6) is moved to opening direction, behind manual operation hole, exposed portion, dynamic iron core limits switching
Lid (6) stop motion.
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that cut
Change and on lid (6) surface, be provided with label (1) and handle (2), handle (2), label (1), switching
Lid (6) and handoff block (9) are fixed together by screw (14) combination.
A kind of operating mechanism manual locking device the most according to claim 6, it is characterised in that cut
Change and be provided with operation pin insertion apertures on the position that the upper iron core dynamic with interlocking electromagnet (4) of lid (6) is relative,
Operation pin (3) is connected to shake hands on (2).
A kind of operating mechanism manual locking device the most according to claim 1, it is characterised in that when
When operating mechanism control loop is charged, switching lid (6) is moved to opening direction, during motion；
Handoff block (9) convex platform side by control loop switch switch (5) be close to this side by closing
State switches to off-state, completes to switch electrically and manually；
Handoff block (9) upper groove side by interlocking electromagnet switching switch (10) be close to this side by
Off-state switches to closure state, and interlocking electromagnet (4) is energized, along with the continuation of handoff block (9)
Sliding, the contact of interlocking electromagnet switching switch (10) is switched to again, after tiding over groove, the state of cut-offfing；
After motion, switching signal microswitch (11) is closed by the upper end of switching lid (6), and
Send just at the signal of manual operation to control centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438439.1A CN106024491B (en) | 2016-06-17 | 2016-06-17 | A kind of operating mechanism manual locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438439.1A CN106024491B (en) | 2016-06-17 | 2016-06-17 | A kind of operating mechanism manual locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106024491A true CN106024491A (en) | 2016-10-12 |
| CN106024491B CN106024491B (en) | 2017-12-01 |
Family
ID=57088790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610438439.1A Active CN106024491B (en) | 2016-06-17 | 2016-06-17 | A kind of operating mechanism manual locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106024491B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509653A (en) * | 2017-09-15 | 2019-03-22 | Abb有限公司 | Switching device and associated switch |
| CN110993421A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Interlocking structure of three-position switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514995A1 (en) * | 1991-05-24 | 1992-11-25 | Giampietro Tosi | Compact device for the manual control of operating switches |
| CN201508787U (en) * | 2009-08-18 | 2010-06-16 | 张文权 | Manual operation device |
| CN201796766U (en) * | 2009-12-17 | 2011-04-13 | 上海行创电气有限公司 | Electrical interlocking control device for transfer switching equipment |
| CN203225198U (en) * | 2013-02-05 | 2013-10-02 | 西门子公司 | Isolation switch and changeover switch |
| CN203521232U (en) * | 2014-01-02 | 2014-04-02 | 浙江轩业电气设备有限公司 | Interlocking device |
| CN204740981U (en) * | 2015-06-16 | 2015-11-04 | 江苏大全长江电器股份有限公司 | Electrically -operated interlocking device |
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2016
- 2016-06-17 CN CN201610438439.1A patent/CN106024491B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0514995A1 (en) * | 1991-05-24 | 1992-11-25 | Giampietro Tosi | Compact device for the manual control of operating switches |
| CN201508787U (en) * | 2009-08-18 | 2010-06-16 | 张文权 | Manual operation device |
| CN201796766U (en) * | 2009-12-17 | 2011-04-13 | 上海行创电气有限公司 | Electrical interlocking control device for transfer switching equipment |
| CN203225198U (en) * | 2013-02-05 | 2013-10-02 | 西门子公司 | Isolation switch and changeover switch |
| CN203521232U (en) * | 2014-01-02 | 2014-04-02 | 浙江轩业电气设备有限公司 | Interlocking device |
| CN204740981U (en) * | 2015-06-16 | 2015-11-04 | 江苏大全长江电器股份有限公司 | Electrically -operated interlocking device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509653A (en) * | 2017-09-15 | 2019-03-22 | Abb有限公司 | Switching device and associated switch |
| CN109509653B (en) * | 2017-09-15 | 2022-07-19 | Abb瑞士股份有限公司 | Switching device and associated switch |
| CN110993421A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Interlocking structure of three-position switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106024491B (en) | 2017-12-01 |
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Effective date of registration: 20221228 Address after: No.24, gazelle Valley, high tech Zone, Xi'an, Shaanxi 710077 Patentee after: XI'AN XD HIGH VOLTAGE SWITCHGEAR OPERATING MECHANISM CO.,LTD. Patentee after: CHINA XD ELECTRIC Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. |
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