CN208889561U - A kind of isolation combined operation mechanism of vacuum load switch - Google Patents
A kind of isolation combined operation mechanism of vacuum load switch Download PDFInfo
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- CN208889561U CN208889561U CN201821443480.9U CN201821443480U CN208889561U CN 208889561 U CN208889561 U CN 208889561U CN 201821443480 U CN201821443480 U CN 201821443480U CN 208889561 U CN208889561 U CN 208889561U
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Abstract
The utility model discloses a kind of isolation combined operation mechanisms of vacuum load switch, include operating shaft, the first actuating axis for controlling disconnecting switch on-off and the second actuating axis for controlling vacuum extinction device on-off；Operating shaft controls the first actuating axis by linkage unit and the second actuating axis links.Fracture linkage is disconnected at disconnecting switch and vacuum extinction device two closes, and vacuum load switch has been not easy electric arc；It can be the successive combined floodgate of several Milliseconds, after electric arc caused by disconnecting switch combined floodgate transient state is quickly extinguished, vacuum extinction device safety closing, vacuum load switch has higher security reliability at disconnecting switch and vacuum extinction device two in the disconnected conjunction of the linkage of fracture.
Description
Technical field
The utility model relates to high-voltage switch gears, more particularly, to a kind of isolation combined operation mechanism of vacuum load switch.
Background technique
As voltage class requires to be continuously improved, the drop-out voltage of high voltage load switch requires to be continuously improved.
In the prior art, part of the manufacturer is equally provided with the vacuum switch of multi-break；However in its setting, each fracture is independent
The divide-shut brake synchronism of actuating divide-shut brake, the multi-break cannot be guaranteed.The divide-shut brake synchronism of the multi-break is poor, multi-break
The due big drop-out voltage of institute cannot preferably embody, multi-break is but similar to single port.The divide-shut brake synchronism of the multi-break compared with
Difference, the arcing time is longer, be easy to cause cut-off not in time, failure of interruption etc..
Thus, it is necessary to which a kind of multi-break isolation linkage operating mechanism of vacuum load switch is arranged, multi-break linkage is disconnected
It closes, vacuum extinction device has been not easy electric arc, has higher protection class.
Utility model content
In order to overcome the deficiencies of the prior art, the technical solution adopted in the utility model is:
A kind of isolation combined operation mechanism of vacuum load switch, includes operating shaft, for controlling disconnecting switch on-off
The first actuating axis and the second actuating axis for controlling vacuum extinction device on-off；Operating shaft passes through linkage unit control first
Actuating axis and the linkage of the second actuating axis.
Another specific embodiment according to the present utility model, further has, the linkage unit include STATEMENT OF FEDERALLY SPONSORED,
The second connecting lever with the first connecting lever of the first actuating axis connection and with the second actuating axis connection, STATEMENT OF FEDERALLY SPONSORED pass through the first connecting lever band
Dynamic first actuating axis rotation, STATEMENT OF FEDERALLY SPONSORED drive the rotation of the second actuating axis by the second connecting lever.
Another specific embodiment according to the present utility model, further has, and the STATEMENT OF FEDERALLY SPONSORED is provided with for accommodating
The first sliding groove of first connecting lever end sliding and the second sliding slot slid for accommodating the second connecting lever end；STATEMENT OF FEDERALLY SPONSORED rotation
When, one end of the first connecting lever is accommodated in first sliding groove sliding and the first actuating axis rotates, and one end of the second connecting lever is accommodated in the
Sliding and the rotation of the second actuating axis in two sliding slots.
Another specific embodiment according to the present utility model, further has, and first connecting lever and the second connecting lever are equal
It is provided with sliding slot, STATEMENT OF FEDERALLY SPONSORED, which is provided with, can be accommodated in the first flange slid in the first connecting lever sliding slot, and STATEMENT OF FEDERALLY SPONSORED, which is provided with, to be held
Set the second flange slid in the second connecting lever sliding slot；When STATEMENT OF FEDERALLY SPONSORED rotates, the first flange slides in the sliding slot of the first connecting lever,
And first actuating axis rotation, the second flange slide in the sliding slot of the second connecting lever and the second actuating axis rotation.
Another specific embodiment according to the present utility model, further has, and the linkage unit includes linkage tooth
Wheel, the second gear with the first gear of the first actuating axis connection and with the second actuating axis connection, linkage gear pass through first
Gear drives the rotation of the first actuating axis, and linkage gear drives the second actuating axis to rotate by second gear.
Another specific embodiment according to the present utility model, further has, and the STATEMENT OF FEDERALLY SPONSORED is connected with energy-stored spring；
Energy-stored spring provides the power that the first actuating axis and the second actuating axis reset.
Another specific embodiment according to the present utility model, further has, and the both ends of the energy-stored spring are cut with scissors respectively
STATEMENT OF FEDERALLY SPONSORED and operating shaft are connect, one end of energy-stored spring is socketed operating shaft, and energy-stored spring can be rotated around operating shaft.
A kind of isolation combined operation mechanism for vacuum load switch that the utility model uses, has the advantages that
Fracture linkage is disconnected at disconnecting switch and vacuum extinction device two closes, and vacuum load switch has been not easy electric arc；Disconnecting switch and vacuum are gone out
It can be the successive combined floodgate of several Milliseconds, electricity caused by disconnecting switch combined floodgate transient state at arc device two in the disconnected conjunction of the linkage of fracture
After arc is quickly extinguished, vacuum extinction device safety closing, vacuum load switch has higher security reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model, hidden cabinet body portion plate；
Fig. 2 is the main view of the utility model；
Fig. 3 is the side view of the utility model；
Fig. 4 is partial enlarged view at the A of the utility model Fig. 3；
Fig. 5 is the structural schematic diagram of the utility model operating mechanism.
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1 to Figure 3, a kind of vacuum-load ring network cabinet of isolation linkage, including cabinet body, switching mechanism 2 and operation
Mechanism 1；Vacuum interrupter chamber, operating mechanism room and the cable vault of separation are provided in cabinet body.Switching mechanism 2 includes successively to be electrically connected
The first connecting terminal 21, disconnecting switch 22, vacuum extinction device 23 and the second connecting terminal 24, the switching mechanism 2 connect further includes having
The second rotor 26 for controlling the first rotor 25 of 22 on-off of disconnecting switch and for controlling 23 on-off of vacuum extinction device, operation
Mechanism 1 connects the first rotor 25 and the second rotor 26；Operating mechanism 1 is for controlling disconnecting switch 22 and vacuum extinction device 23
It is dynamic.First connecting terminal 21 connects the wall surface of vacuum interrupter chamber, for connecting outer cable, epoxy resin terminals etc.；Second connects
Line terminals 24 connect the wall surface that vacuum interrupter and cable compartment are connected.
As shown in Figures 2 and 3, the first connecting terminal 21 and the second connecting terminal 24, an inlet wire as on-load switch
End, another is as leading-out terminal.First connecting terminal 21 is connected with and cabinet terminal, the second connecting terminal 24 include copper bar and/
Or outlet terminal.Ring network cabinet includes cabinet body, and the on-load switch room being separated by, operating mechanism Room 1, cable compartment are provided on cabinet body.The
One connecting terminal 21 and the second connecting terminal 24 include the epoxy insulator for connecting cabinet body, the first rotor 25 and the second rotor
26 it is hinged on the cabinet.
As shown in Figure 1 to Figure 3, operating mechanism 1 connects the first rotor 25 and the second rotor 26, and operating mechanism 1 is for controlling
The first rotor 25 and the linkage of the second rotor 26, and then control the linkage of disconnecting switch 22 and vacuum extinction device 23.Disconnecting switch 22
Feed motion and vacuum extinction device 23 feed motion link, the two close a floodgate linkage synchronize, realize the combined floodgate of on-load switch；Every
It leaves and closes 22 separating brake movement and the separating brake movement linkage of vacuum extinction device 23, realize the separating brake of on-load switch.
The disconnected conjunction method of on-load switch, the end of incoming cables of on-load switch and leading-out terminal are provided with disconnecting switch 22 and vacuum extinction
Device 23, the first rotor 25 are operated for controlling 22 on-off of disconnecting switch, the second rotor 26 for controlling 23 on-off of vacuum extinction device
Mechanism 1 connects the first rotor 25 and the second rotor 26 simultaneously, and operating mechanism 1 is for controlling disconnecting switch 22 and vacuum extinction device 23
Linkage；During operating mechanism 1 drives the first rotor 25 and the second rotor 26 to act, the first rotor 25 drives disconnecting switch 22
After combined floodgate T time, the second rotor 26 drives vacuum extinction device 23 to close a floodgate；The separating brake that operating mechanism 1 also controls disconnecting switch 22 is dynamic
Make and the separating brake of vacuum extinction device 23 acts linkage.
T time is 8~16ms, after electric arc caused by 22 combined floodgate transient state of disconnecting switch is quickly extinguished, vacuum extinction device
23 safety closings, vacuum load switch have higher security reliability.Preferably, T time is 10~13ms, disconnecting switch 22
After electric arc caused by combined floodgate transient state is quickly extinguished, vacuum extinction device 23 comparatively fast relatively safe closes a floodgate.
Port at disconnecting switch 22 and 23 liang of vacuum extinction device, cut-offfing between on-load switch end of incoming cables and leading-out terminal are set
Voltage is higher, meets higher voltage class requirement；It is additionally provided with simultaneously for controlling disconnecting switch 22 and vacuum extinction device 23
The operating mechanism 1 of linkage, disconnecting switch 22 and 23 combined floodgate synchronism of vacuum extinction device are good, and vacuum extinction device 23 is not likely to produce electricity
Arc；Disconnecting switch 22 and the combined floodgate of vacuum extinction device 23 are only separated by extremely short T time, and first safety connects electricity to on-load switch, arc extinguishing is led again
It is logical.
As shown in Figures 1 to 4, the connection of disconnecting switch 22 and vacuum extinction device 23 can be set are as follows: disconnecting switch 22 is wrapped
The the first moving contact 22b for including the first static contact 22a and being arranged on the first rotor 25, vacuum extinction device 23 includes second
Static contact and the second moving contact, the first static contact 22a are electrically connected with the first connecting terminal 21, and the first moving contact 22b and second is dynamic
Contact electrical connection, the second static contact are electrically connected with the second connecting terminal 24.First static contact 22a and the when the first rotor 25 rotates
One moving contact 22b on-off, the rotation of the second rotor 26 is for driving the second moving contact to abut the second static contact.Specifically, first
Copper bar is connected between moving contact 22b and the second moving contact to be flexible coupling.The first rotor 25 and the second rotor 26 include central spindle
And the epoxy insulator of connecting shaft outer core；First moving contact 22b is arranged on epoxy insulator, the epoxy of the second rotor 26
Insulator is for driving moving contact to slide.In the disconnected conjunction method of on-load switch, the rotation of the first rotor 25 stops, disconnecting switch 22 is closed
After lock T time, the rotation of the second rotor 26 stops, vacuum extinction device 23 closes a floodgate
The connection of disconnecting switch 22 and vacuum extinction device 23 may be set to be: disconnecting switch 22 includes the first static contact
22a and the first moving contact 22b being arranged on the first rotor 25, vacuum extinction device 23 include that the second static contact and second are dynamic
Contact, the first static contact 22a are electrically connected with the first connecting terminal 21, and the first moving contact 22b is electrically connected with the second static contact, and second
Moving contact is electrically connected with the second connecting terminal 24.The first static contact 22a and the first moving contact 22b is logical when the first rotor 25 rotates
Disconnected, the rotation of the second rotor 26 is for driving the second moving contact to abut the second static contact.Specifically, the first moving contact 22b and
Copper bar is connected between two static contacts to be flexible coupling.
As shown in Figure 3 and Figure 4, the second moving contact includes lever 23a and the contact end that is connected on lever 23a, is moved
Bar 23a is connected with elastic component 23b, and elastic component 23b is for driving lever 23a far from the second static contact, the rotation of the second rotor 26
For driving the contact end of lever 23a to abut the second static contact.
As shown in Figure 3 and Figure 4, vacuum extinction device 23 includes shell, and the second static contact part accommodates vacuum extinction device 23
In shell, the second moving contact part is accommodated in sliding in 23 shell of vacuum extinction device.
As shown in Figure 3 and Figure 4, the connection of the second moving contact and the second rotor 26 can be with are as follows: and elastic component 23b is tension spring, the
Two rotors 26 connect lever 23a by tension spring；The rotation of second rotor 26 is for driving lever 23a close to or far from the second stationary contact
Head.Second rotor 26 includes the epoxy insulator of central spindle and connecting shaft outer core, is provided with collets on lever 23a, is drawn
The both ends of spring are separately connected epoxy insulator and collets.
The connection of second moving contact and the second rotor 26 may be: cam structure is set on the second rotor 26, specifically,
Cam structure is arranged on epoxy insulator；When second rotor 26 rotates, cam structure is to the abutting of lever 23a for driving the
Two moving contacts abut the second static contact；Spring is connected between 23 shell of vacuum extinction device and lever 23a, spring is dynamic for driving
Bar 23a is far from the second static contact.Specifically, being provided with collets on lever 23a, when the second rotor 26 rotates, cam structure can
It is connected on collets；Both ends of the spring abuts 23 shell of lever 23a collets and vacuum extinction device respectively.
As shown in figure 3, further include having earthing switch 27, earthing switch 27 includes third trochanter and is connected to third and turns
Third moving contact on son, third moving contact connect ground wire, and third trochanter is for driving third moving contact to connect or far from second
Terminals 24；When third trochanter rotates, the electrical connection of third moving contact or separate second connecting terminal 24.Third trochanter is hinged on cabinet
On body；Third trochanter includes central spindle and the epoxy insulator that is arranged in central spindle, and third moving contact is connected to epoxy insulation
On body.In the disconnected conjunction method of on-load switch, when needing ground under the second connecting terminal 24, third trochanter, third trochanter rotation are rotated
Third moving contact is driven to be electrically connected the second connecting terminal 24.
As shown in figure 3, being set as claw pattern for connecting one end of the second connecting terminal on third moving contact, second is connect
Snap-gauge pattern is set as connecting one end of third moving contact in line terminals 24；When the first rotor 25 rotates, the first moving contact
22b snapping or separate first static contact 22a.It is U-shaped for connecting the end of the second connecting terminal on third moving contact, it is set as
Claw pattern, including there are two elasticity card bases.
As shown in Fig. 2, it is set as claw pattern for connecting one end of the first moving contact 22b on the first static contact 22a, the
Snap-gauge pattern is set as connecting one end of the first static contact 22a on one moving contact 22b；When the first rotor 25 rotates, first
Moving contact 22b snapping or separate first static contact 22a.It is U-shaped for connecting the end of moving contact on first static contact 22a, if
It is set to claw pattern, including there are two elasticity card bases.
As depicted in figs. 1 and 2, switching mechanism 2 is used to control the disconnected conjunction of at least two-phase electricity, the first connecting terminal 21, isolation
Switch 22, vacuum extinction device 23 and the second connecting terminal 24 are correspondingly arranged at least two；Be provided on the first rotor 25 to
Lack two the first moving contact 22b, the flange for separating at least two first moving contact 22b is provided on the first rotor 25；
The flange for separating at least two vacuum extinction device 23 is provided on second rotor 26.Common, on-load switch is used for three
The mutually disconnected conjunction of electricity.The first rotor 25 and the second rotor 26 include the epoxy insulator of central spindle and connecting shaft outer core；It is convex
Edge is arranged in epoxy and becomes attached to the upper of body, is electrically isolated for high pressure.
As shown in figure 5, operating mechanism 1 includes operating shaft 11, the first actuating axis for controlling 22 on-off of disconnecting switch
And the second actuating axis for controlling 23 on-off of vacuum extinction device；Operating shaft 11 by linkage unit control the first actuating axis and
The linkage of second actuating axis.
As shown in Figure 1, Figure 2 and shown in Fig. 5, linkage unit be can be set are as follows: linkage unit includes STATEMENT OF FEDERALLY SPONSORED 12 and the first behaviour
The first connecting lever 13 that moving axis connects and the second connecting lever 14 with the second actuating axis connection；STATEMENT OF FEDERALLY SPONSORED 12 passes through 13 band of the first connecting lever
Dynamic first actuating axis rotation, STATEMENT OF FEDERALLY SPONSORED 12 drive the rotation of the second actuating axis by the second connecting lever 14, and operating shaft 11 passes through STATEMENT OF FEDERALLY SPONSORED
12 the first actuating axis of control and the linkage of the second actuating axis.First actuating axis and the first rotor 25 are integrally formed, the two connection has
First connecting lever 13 connects the first rotor 25；When first connecting lever 13 drives the first rotor 25 to rotate, the first moving contact 22b and first is quiet
Contact 22a is disconnected or engagement.Second actuating axis and the second rotor 26 are integrally formed, the two connection has the connection of the second connecting lever 14
Second rotor 26；When second connecting lever 14 drives the rotation of the second rotor 26, the second moving contact and the second static contact are disconnected or are engaged.Behaviour
Make axis 11 and the first rotor 25 and the linkage of the second rotor 26 are controlled by STATEMENT OF FEDERALLY SPONSORED 12.In the disconnected conjunction method of on-load switch, rotation behaviour
Make axis 11, operating shaft 11 controls the first rotor 25 and the linkage of the second rotor 26 by STATEMENT OF FEDERALLY SPONSORED 12, and disconnecting switch 22 and vacuum are gone out
Arc device 23 links.
As shown in figure 5, STATEMENT OF FEDERALLY SPONSORED 12 and the first connecting lever 13 form crank block slider structure, 14 shape of STATEMENT OF FEDERALLY SPONSORED 12 and the second connecting lever
At crank block slider structure.Specifically, STATEMENT OF FEDERALLY SPONSORED 12 can be set are as follows: STATEMENT OF FEDERALLY SPONSORED 12 is provided with for accommodating 13 end of the first connecting lever
The first sliding groove of sliding and the second sliding slot slid for accommodating 14 end of the second connecting lever；When STATEMENT OF FEDERALLY SPONSORED 12 rotates, first is turned
One end of arm 13 is accommodated in sliding in first sliding groove and the first actuating axis rotates, and it is sliding that one end of the second connecting lever 14 is accommodated in second
Sliding and the rotation of the second actuating axis in slot.STATEMENT OF FEDERALLY SPONSORED 12 may be set to be: 12 first connecting lever 13 of STATEMENT OF FEDERALLY SPONSORED and the second connecting lever 14
It is provided with sliding slot, STATEMENT OF FEDERALLY SPONSORED 12, which is provided with, can be accommodated in the first flange slid in 13 sliding slot of the first connecting lever, and STATEMENT OF FEDERALLY SPONSORED 12 is set
The second flange slid in 14 sliding slot of the second connecting lever can be accommodated in by being equipped with；When STATEMENT OF FEDERALLY SPONSORED 12 rotates, the first flange is in the first connecting lever
Sliding and the rotation of the first actuating axis in 13 sliding slot, the second flange slides in the sliding slot of the second connecting lever 14 and the second actuating axis
Rotation.Sliding groove structure setting, sliding slot have certain stroke, 14 travel settings of the first connecting lever 13 and the second connecting lever.Operating shaft 11 passes through
During linkage unit drives the first rotor 25 and the second rotor 26 to link, disconnecting switch 22 is closed vacuum extinction after T time
Device 23 is closed, and guarantees that the two closure has certain synchronism, and vacuum extinction device 23 is not likely to produce electric arc, allows when generating electric arc
There is T time to carry out arc extinguishing, guarantees the degree of protection of on-load switch.
Linkage unit may be set to be: linkage unit includes linkage gear, the first tooth with the first actuating axis connection
Wheel and the second gear with the second actuating axis connection, linkage gear drive the first actuating axis to rotate by first gear, linkage
Gear drives the rotation of the second actuating axis by second gear.
As shown in figure 5, operating mechanism 1 includes the energy-stored spring 15 connecting with STATEMENT OF FEDERALLY SPONSORED 12；Disconnecting switch 22 and vacuum
When extinguisher 23 closes a floodgate, 15 deformation of energy-stored spring；Energy-stored spring 15 provides disconnecting switch 22 and the linkage separating brake of vacuum extinction device 23
Power；Energy-stored spring 15 provides the power that the first actuating axis and the second actuating axis reset, the first actuating axis and the second actuating axis
It resets, 23 separating brake of disconnecting switch 22 and vacuum extinction device.Specifically, the both ends of energy-stored spring 15 are respectively articulated with STATEMENT OF FEDERALLY SPONSORED 12 and behaviour
Make axis 11, one end of energy-stored spring 15 is socketed operating shaft 11, and energy-stored spring 15 can be rotated around operating shaft 11.Energy-stored spring 15 and connection
Moving part 12 forms brace and connecting rod framework.When disconnecting switch 22 and vacuum extinction device 23 close a floodgate, STATEMENT OF FEDERALLY SPONSORED 12 drives energy-stored spring 15
It swings, energy-stored spring 15 is specially generally to have STATEMENT OF FEDERALLY SPONSORED 12 and storage at this time around the swing of operating shaft 11, at this time 15 deformation of energy-stored spring
15 stress of energy spring is point-blank.When operating shaft 11 executes separating brake movement, slightly then energy-stored spring 15 passes through linkage to stress
Part 12 and connecting lever drive the first rotor 25 and the rotation of the second rotor 26, realize quick acting switching-off.Operating shaft 11 and cabinet body are hinged, energy storage
One end of spring 15 is socketed in operating shaft 11；When operating shaft 11 rotates, energy-stored spring 15 can not be rotated.
Above embodiments are only to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.
Claims (7)
1. a kind of isolation combined operation mechanism of vacuum load switch, it is characterised in that: include operating shaft (11), for controlling
The first actuating axis of disconnecting switch (22) on-off and the second actuating axis for controlling vacuum extinction device (23) on-off；Operating shaft
(11) the first actuating axis is controlled by linkage unit and the second actuating axis links.
2. a kind of isolation combined operation mechanism of vacuum load switch according to claim 1, it is characterised in that: described
Dynamic component includes STATEMENT OF FEDERALLY SPONSORED (12), the with the first connecting lever (13) of the first actuating axis connection and with the second actuating axis connection
Two connecting levers (14), STATEMENT OF FEDERALLY SPONSORED (12) drive the rotation of the first actuating axis by the first connecting lever (13), and STATEMENT OF FEDERALLY SPONSORED (12) is turned by second
Arm (14) drives the rotation of the second actuating axis.
3. a kind of isolation combined operation mechanism of vacuum load switch according to claim 2, it is characterised in that: described
Moving part (12) is provided with the first sliding groove for accommodating the sliding of the first connecting lever (13) end and is used to accommodate the second connecting lever (14)
The second sliding slot of end sliding；When STATEMENT OF FEDERALLY SPONSORED (12) rotates, one end of the first connecting lever (13) be accommodated in first sliding groove sliding and
The rotation of first actuating axis, one end of the second connecting lever (14) is accommodated in sliding in second sliding slot and the second actuating axis rotates.
4. a kind of isolation combined operation mechanism of vacuum load switch according to claim 2, it is characterised in that: described
One connecting lever (13) and the second connecting lever (14) are provided with sliding slot, and STATEMENT OF FEDERALLY SPONSORED (12), which is provided with, can be accommodated in the first connecting lever (13) sliding slot
First flange of middle sliding, STATEMENT OF FEDERALLY SPONSORED (12), which is provided with, can be accommodated in the second flange slid in the second connecting lever (14) sliding slot；Connection
When moving part (12) rotates, the first flange slides in the sliding slot of the first connecting lever (13) and the first actuating axis rotates, and the second flange exists
Sliding and the rotation of the second actuating axis in the sliding slot of second connecting lever (14).
5. a kind of isolation combined operation mechanism of vacuum load switch according to claim 1, it is characterised in that: described
Dynamic component includes linkage gear, the second tooth with the first gear of the first actuating axis connection and with the second actuating axis connection
Wheel, linkage gear drive the first actuating axis to rotate by first gear, and linkage gear drives the second actuating axis by second gear
Rotation.
6. according to a kind of isolation combined operation mechanism of any vacuum load switch of claim 2 to 4, feature exists
In: the STATEMENT OF FEDERALLY SPONSORED (12) is connected with energy-stored spring (15)；Energy-stored spring (15) provides the first actuating axis and the second actuating axis is multiple
The power of position.
7. a kind of isolation combined operation mechanism of vacuum load switch according to claim 6, it is characterised in that: the storage
The both ends of energy spring (15) are respectively articulated with STATEMENT OF FEDERALLY SPONSORED (12) and operating shaft (11), and one end of energy-stored spring (15) is socketed operating shaft
(11), energy-stored spring (15) can be rotated around operating shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443480.9U CN208889561U (en) | 2018-09-04 | 2018-09-04 | A kind of isolation combined operation mechanism of vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821443480.9U CN208889561U (en) | 2018-09-04 | 2018-09-04 | A kind of isolation combined operation mechanism of vacuum load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208889561U true CN208889561U (en) | 2019-05-21 |
Family
ID=66511184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821443480.9U Active CN208889561U (en) | 2018-09-04 | 2018-09-04 | A kind of isolation combined operation mechanism of vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208889561U (en) |
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2018
- 2018-09-04 CN CN201821443480.9U patent/CN208889561U/en active Active
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