CN108807041A - A kind of mechanical interlocks of double power supply automatic transfer switch - Google Patents
A kind of mechanical interlocks of double power supply automatic transfer switch Download PDFInfo
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- CN108807041A CN108807041A CN201810671743.XA CN201810671743A CN108807041A CN 108807041 A CN108807041 A CN 108807041A CN 201810671743 A CN201810671743 A CN 201810671743A CN 108807041 A CN108807041 A CN 108807041A
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- separating brake
- spare
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- brake lever
- power supply
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- 238000012546 transfer Methods 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 6
- 210000003734 kidney Anatomy 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009411 base construction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Braking Arrangements (AREA)
Abstract
A kind of mechanical interlocks of double power supply automatic transfer switch, it includes main operation mechanism main shaft (1) and standby operation mechanism main shaft (2), main machine frame cantilever (101) is housed on main operation mechanism main shaft (1), spare mechanism cantilever (201) is housed on standby operation mechanism main shaft (2), it is characterised in that：The main machine frame cantilever (101) is connected with the upper end of Left-wing Federation's locking bar (3), the lower end of the left latch lever (3) is connected using elastic device (4) with spare separating brake lever (5), spare separating brake lever (5) can be driven to rotate, can be linked with spare mechanism separating brake semiaxis (6) in spare separating brake lever (5) rotation process；Whole device is simple in structure efficiently, the assembly space of occupancy is smaller, have flexible contact conversion and dimension adjustable function, it is more convenient to be installed, safeguarded and replaced, and it can also be integrated with other functional structures of double power supply automatic transfer switch, realize that modularization, manufacturing cost substantially reduce.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology fields, are exactly specifically to be related to a kind of machinery of double power supply automatic transfer switch
Interlock.
Background technology
With the development of society, requirement of the people to power grid and its during power transmission and distribution also gradually improves, main body
The safety of power supply unit, reliability, duration, easy repair and maintenance etc. now, therefore with these above-mentioned typical spies
The application of the double power supply automatic transfer switch of sign is more and more extensive；Double power supply automatic transfer switch may be implemented in the time being exceedingly fast
Common automatic switchover between power supply and stand-by power supply is particularly suitable for the occasion that various requirement for cannot be electrically cut off for a long time.
Double power supply automatic transfer switch has two groups of mutually independent contact systems, respectively controls the main power source and stand-by power supply of its connection
Connection/disjunction, every group of contact system controlled by respective operating mechanism respectively；Double power supply automatic transfer switch is in reality
During use, allows two operating mechanisms to control its respective contact system and connect all in separating brake off-state or one group
The system of touching, which is located at another group of contact system of combined floodgate on-state and is in separating brake off-state, (does not allow two groups of contact systems simultaneously
In combined floodgate on-state)；Double power supply automatic transfer switch can carry out main power source and stand-by power supply in course of normal operation
Detection monitoring, when detecting that power supply has abnormal, just switches over from abnormal power supply toward normal power source automatically, thereby using
Normal power source is powered；This requires double power supply automatic transfer switch will quickly, surely in transfer process in main power source and stand-by power supply
It is fixed, efficient, and be equipped with corresponding interlock, to accomplish to prevent active/standby to be also turned on power supply, it is ensured that power supply safety.
In existing double power supply automatic transfer switch, the interlocking majority between two-way power supply is being closed using shift fork technology
When unifying the power supply of side, combined floodgate main shaft is withstood with manual shift fork (also known as retainer), prevents the other side from being closed, this method master
To be applied to the transfer switching equipment of low capacity, and for the transfer switching equipment of large capacity because its operating force is big, when action, rushes
Hit that power is big, as using the method withstood combined floodgate main shaft or drive interlock by combined floodgate main shaft, interlock is larger by stress, can
It is low by property, cause its service life low, volume is larger.
Invention content
Mechanical interlocking device anti-impact force of the purpose of the present invention aiming at above-mentioned existing double power supply automatic transfer switch
Not strong, the larger technological deficiency of volume provides a kind of mechanical interlocks of double power supply automatic transfer switch, utilizes connecting rod, thick stick
The frame mode of bar and operating mechanism cantilever etc., control it is active/standby connected with the operating mechanism of contact system, make a behaviour
When driving its contact system to be in combined floodgate on-state as mechanism, another operating mechanism is in and is locked in sub-gate position
It sets, to realize the active/standby requirement that can not be closed a floodgate simultaneously with contact system.Whole device is simple in structure efficiently, the assembly of occupancy
Space is smaller, has flexible contact conversion and dimension adjustable function, more convenient to be installed, safeguarded and replaced, and
It can also be integrated with other functional structures of double power supply automatic transfer switch, realize that modularization, manufacturing cost are big
It is big to reduce.
It is insufficient existing for the mechanical interlocking device of above-mentioned existing double power supply automatic transfer switch in order to overcome, present invention design
A kind of mechanical interlocks of double power supply automatic transfer switch, it includes main operation mechanism main shaft and standby operation mechanism master
Axis is equipped with main machine frame cantilever on main operation mechanism main shaft, spare mechanism cantilever is housed on standby operation mechanism main shaft,
It is characterized in that：The main machine frame cantilever is connected with the upper end of Left-wing Federation's locking bar, and the lower end of the left latch lever is filled using elasticity
It sets to be connected with spare separating brake lever and can drive spare separating brake lever rotation, it can during the spare separating brake lever rotation
It links with spare mechanism separating brake semiaxis；
The spare mechanism cantilever is connected with the lower end of right blocking lever, and the upper end of the right latch lever utilizes elastic device
Main separating brake lever rotation can be driven by being connected with main separating brake lever, can be with main machine frame during the main separating brake lever rotation
Separating brake semiaxis links.
Further, Left-wing Federation's locking bar is located in carrier base with right blocking lever and can only be transported along length direction by limitation
It is dynamic.
Further, the elastic device includes mounting plate and shrapnel one, and the mounting plate and shrapnel one are fitted together, described
Mounting plate is adjustable mounted in an end position of Left-wing Federation's locking bar or right blocking lever.
Further, the main separating brake lever and spare separating brake lever be equipped with touching arm, the shake-up arm with it is described corresponding
Shrapnel one links, and the shrapnel one can drive the shake-up armband to move the corresponding main separating brake lever and spare separating brake lever
Rotation, the main separating brake lever and spare separating brake lever are also equipped with separating brake cantilever described in separating brake cantilever and can drive main machine frame separating brake
Corresponding separating brake transmission arm on semiaxis and spare mechanism separating brake semiaxis.
Further, the main machine frame cantilever and spare mechanism cantilever include cantilever slab, and the plate face of the cantilever slab is equipped with
Cantilevered axle.
Further, the main separating brake lever and spare separating brake lever are equipped with shrapnel two or spring two, the shrapnel two or bullet
Spring two resists pedestal.
Further, one end of Left-wing Federation's locking bar and right blocking lever dress mounting plate is frosting, and mounting plate is filled using screw
On the frosting, at least one screw via is that kidney slot installs Board position for adjusting.
Further, the carrier base includes stand stopper, and the stand stopper is equipped with limiting slot, Left-wing Federation's lock
The shaft of bar and right blocking lever is located in limiting slot, and the stand stopper is covered using supporting plate, and the carrier base is mounted in base
On seat.
Further, the main separating brake lever and spare separating brake lever are attached separately to the upper groove and lower groove of corresponding pedestal
It is interior.
Further, main operation mechanism main shaft and standby operation mechanism main shaft are attached separately to main operation mechanism and spare behaviour
Make on the side plate of structure, the main operation mechanism and standby operation structure are mounted on pedestal using pedestal horizontal central line as symmetrical centre
Arrangement symmetrical above and below, the main operation mechanism and standby operation structure are located on the same vertical direction of pedestal.
Advantageous effect
A kind of mechanical interlocks of double power supply automatic transfer switch provided by the invention, utilizes connecting rod, lever and operation
The frame mode of mechanism cantilever etc., control it is active/standby connected with the operating mechanism of contact system, make an operating mechanism band
When its dynamic contact system is in combined floodgate on-state, another operating mechanism is in and is locked in open position, to real
The existing active/standby requirement that can not be closed a floodgate simultaneously with contact system.Whole device is simple in structure efficiently, and the assembly space of occupancy compares
It is small, have flexible contact conversion and dimension adjustable function, it is more convenient to be installed, safeguarded and replaced, and can also be with
Other functional structures of double power supply automatic transfer switch are integrated, and realize that modularization, manufacturing cost substantially reduce.
Description of the drawings
Attached drawing 1 is the mounting structure schematic diagram of the embodiment of the present invention；
Attached drawing 2 is base construction schematic diagram in the embodiment of the present invention；
Attached drawing 3a be in the embodiment of the present invention main contact system and spare contact system all in opening position diagram；
Attached drawing 3b is enlarged drawing at C in attached drawing 3a；
Attached drawing 3c is enlarged drawing at D in attached drawing 3a；
Attached drawing 4a is that main contact system closes a floodgate and spare contact system opening position diagram in the embodiment of the present invention；
Attached drawing 4b is enlarged drawing at E in attached drawing 4a；
Attached drawing 5a is main contact system separating brake and spare contact system closing position schematic diagram in the embodiment of the present invention；
Attached drawing 5b is enlarged drawing at F in attached drawing 5a；
Attached drawing 6 is main operation mechanism structure schematic diagram in the embodiment of the present invention；
Attached drawing 7 is standby operation mechanism structure schematic diagram in the embodiment of the present invention；
Attached drawing 8 is main separating brake lever construction schematic diagram in the embodiment of the present invention；
Attached drawing 9 is spare separating brake lever construction schematic diagram in the embodiment of the present invention；
Attached drawing 10 is elastic device mounting structure schematic diagram in the embodiment of the present invention；
Attached drawing 11 is Left-wing Federation's locking bar or right blocking lever structural schematic diagram in the embodiment of the present invention；
Attached drawing 12 is elastic apparatus structure schematic diagram in the embodiment of the present invention；
Attached drawing 13 is main machine frame separating brake semiaxis or spare mechanism separating brake semiaxis structural schematic diagram in the embodiment of the present invention；
Attached drawing 14 is stand stopper structure schematic diagram in the embodiment of the present invention；
Attached drawing 15 is that carrier base knot installs structure schematic diagram in the embodiment of the present invention；
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention will be further described.
Example example
As shown in figure 1 and 2, a kind of mechanical interlocks of double power supply automatic transfer switch, it includes main operation mechanism
Main shaft 1 and standby operation mechanism main shaft 2, main operation mechanism main shaft 1 and standby operation mechanism main shaft 2 are attached separately to main operation
On the side plate of mechanism A and standby operation structure B, the main operation mechanism A and standby operation structure B are mounted on pedestal with pedestal 11
Horizontal central line is symmetrical centre arrangement symmetrical above and below, and the main operation mechanism A and standby operation structure B are located at the same of pedestal 11
On vertical direction.Main separating brake lever 8 and spare separating brake lever 5 are attached separately to the upper groove 11a and lower groove of corresponding pedestal 11
In 11b.
As shown in Fig. 6, main machine frame cantilever 101 is housed on main operation mechanism main shaft 1, it is as shown in Fig. 7, described standby
With on operating mechanism main shaft 2 be equipped with spare mechanism cantilever 201, wherein the upper end of the main machine frame cantilever 101 and Left-wing Federation's locking bar 3
It is connected, the lower end of the left latch lever 3 is connected using elastic device 4 and spare separating brake lever 5 and can drive spare separating brake
Lever 5 rotates, and can link with spare mechanism separating brake semiaxis 6 in spare 5 rotation process of separating brake lever；The spare mechanism
Cantilever 201 is connected with the lower end of right blocking lever 7, and the upper end of the right latch lever 7 utilizes elastic device 4 ' and main separating brake lever 8
Being connected can drive main separating brake lever 8 to rotate, can be with main machine frame separating brake semiaxis 9 in main 8 rotation process of separating brake lever
Linkage.Left-wing Federation's locking bar 3 is located at right blocking lever 7 in carrier base 10 can only be moved by limitation along length direction.
Illustrate the concrete structure of associated components in the present embodiment in detail further below：
As shown in attached drawing 10 and 12, the elastic device 4,4 ' includes mounting plate 401,401 ' and shrapnel one 402,402 ',
The mounting plate 401,401 ' and shrapnel one 402,402 ' are fitted together, and the mounting plate 401,401 ' is mounted in Left-wing Federation's locking bar
One end position of 3 or right blocking levers 7 is adjustable.
As shown in figs. 8 and 9, the main separating brake lever 8 and spare separating brake lever 5 are described to touch equipped with shake-up arm 801,501
Swing arm 801,501 links with the corresponding shrapnel one 402,402 ', and the shrapnel one 402,402 ' can drive the shake-up
Arm 801,501 drives the corresponding main separating brake lever 8 and the rotation of spare separating brake lever 5, the main separating brake lever 8 and spare point
Brake lever rod 5 is also equipped with separating brake cantilever 802,502, and the separating brake cantilever 802,502 can drive main machine frame point as shown in fig. 13 that
Corresponding separating brake transmission arm 901,601 on lock semiaxis 9 and spare mechanism separating brake semiaxis 6.
The main machine frame cantilever 101 and spare mechanism cantilever 201 include cantilever slab 101a, 201a, the cantilever slab 101a,
The plate face of 201a is equipped with cantilevered axle 101a01,201a01.
The main separating brake lever 8 and spare separating brake lever 5 are equipped with shrapnel two or spring two, are to utilize shrapnel in the present embodiment
2 803,503 resist pedestal 11.
As shown in Fig. 11, one end that Left-wing Federation's locking bar 3 fills mounting plate 401,401 ' with right blocking lever 7 is frosting,
For mounting plate 401,401 ' using screw on the frosting, at least one screw via is that kidney slot is used to adjust mounting plate
401,401 ' positions.
As shown in figures 14 and 15, the carrier base 10 includes being set on stand stopper 10a, the stand stopper 10a
There are limiting slot 10a01, Left-wing Federation's locking bar 3 and the shaft of right blocking lever 7 to be located in limiting slot 10a01, the stand stopper
10a is covered using supporting plate 10b, and the carrier base 10 fills on the base 11.
As shown in attached drawing 3a, 3b and 3c, main contact system and spare contact system are all in open position, and main operation machine
After the completion of structure A and standby operation mechanism B all energy storage；
Carrying out operation to the switch knob of main operation mechanism A at this time makes its combined floodgate, in making process, main operation mechanism A
Main operation mechanism main shaft 1 rotated clockwise, interlocking Left-wing Federation locking bar 3 by main machine frame cantilever 101 moves downward；In the Left-wing Federation
During locking bar 3 moves downward, spare separating brake lever 5 is interlocked, spare separating brake lever 5 is made to rotate clockwise；Spare separating brake thick stick
Bar 5 touches arm 501 and touches dividing in the spare mechanism separating brake semiaxis 6 of standby operation mechanism B during rotating clockwise
Lock transmission arm 601 is rotated, and makes standby operation mechanism B that can not carry out closing operation, as shown in figs. 4 a and 4b.
If carrying out operation to the switch knob of standby operation mechanism B makes its combined floodgate, in making process, standby operation mechanism
The standby operation mechanism main shaft 2 of B is rotated counterclockwise, and interlocking right latch lever 7 by spare mechanism cantilever 201 moves upwards；
During right latch lever 7 moves upwards, main separating brake lever 8 is interlocked, main separating brake lever 8 is made to rotate counterclockwise；Dynamic main point
Brake lever rod 8 touches arm 801 and touches in the main machine frame separating brake semiaxis 9 of main operation mechanism A during rotating clockwise
Separating brake transmission arm 901 is rotated, and makes main operation mechanism A that can not carry out closing operation.As shown in attached drawing 5a and 5b.
Structure, ratio, size, quantity etc. depicted in institute of embodiment of the present invention accompanying drawings, only coordinating specification
Revealed content is not limited to the enforceable restriction item of the present invention so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall and obtain and can contain in disclosed technology contents
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
Claims (10)
1. a kind of mechanical interlocks of double power supply automatic transfer switch, it includes main operation mechanism main shaft (1) and standby operation
Mechanism main shaft (2) is equipped with main machine frame cantilever (101), standby operation mechanism main shaft on main operation mechanism main shaft (1)
(2) spare mechanism cantilever (201) is housed on, it is characterised in that：The upper end of the main machine frame cantilever (101) and Left-wing Federation's locking bar (3)
Be connected, the lower end of the left latch lever (3) be connected with spare separating brake lever (5) using elastic device (4) can drive it is standby
It is rotated with separating brake lever (5), can be linked with spare mechanism separating brake semiaxis (6) in spare separating brake lever (5) rotation process；
The spare mechanism cantilever (201) is connected with the lower end of right blocking lever (7), and the upper end of the right latch lever (7) utilizes
Elastic device (4 ') is connected with main separating brake lever (8) can drive main separating brake lever (8) to rotate, the main separating brake lever (8)
It can link with main machine frame separating brake semiaxis (9) in rotation process.
2. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The left side
Blocking lever (3) is located at right blocking lever (7) in carrier base (10) can only be moved by limitation along length direction.
3. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The bullet
Property device (4,4 ') includes mounting plate (401,401 ') and shrapnel one (402,402 '), the mounting plate (401,401 ') and shrapnel
One (402,402 ') are fitted together, and the mounting plate (401,401 ') is mounted in the one of Left-wing Federation's locking bar (3) or right blocking lever (7)
End position is adjustable.
4. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The master
Separating brake lever (8) and spare separating brake lever (5) equipped with touching arm (801,501), the shake-up arm (801,501) with it is described corresponding
Shrapnel one (402,402 ') linkage, the shrapnel one (402,402 ') can drive the shake-ups arm (801,501) drive institute
State corresponding main separating brake lever (8) and spare separating brake lever (5) rotation, the main separating brake lever (8) and spare separating brake lever (5)
It is also equipped with separating brake cantilever (802,502), the separating brake cantilever (802,502) can drive main machine frame separating brake semiaxis (9) and spare
Corresponding separating brake transmission arm (901,601) in mechanism separating brake semiaxis (6).
5. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The master
Mechanism cantilever (101) and spare mechanism cantilever (201) include cantilever slab (101a, 201a), the cantilever slab (101a, 201a)
Plate face is equipped with cantilevered axle (101a01,201a01).
6. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The master
Separating brake lever (8) and spare separating brake lever (5) are equipped with shrapnel two or spring two (803,503), the shrapnel two or spring two
(803,503) pedestal (11) is resisted.
7. a kind of mechanical interlocks of double power supply automatic transfer switch as claimed in claim 3, it is characterised in that：The left side
One end of blocking lever (3) and right blocking lever (7) dress mounting plate (401,401 ') is frosting, and mounting plate (401,401 ') utilizes spiral shell
For silk on the frosting, at least one screw via is that kidney slot is used to adjust mounting plate (401,401 ') position.
8. a kind of mechanical interlocks of double power supply automatic transfer switch as claimed in claim 1 or 2, it is characterised in that：Institute
It includes stand stopper (10a) to state carrier base (10), and the stand stopper (10a) is equipped with limiting slot (10a01), the left side
Blocking lever (3) and the shaft of right blocking lever (7) are located in limiting slot (10a01), and the stand stopper (10a) utilizes supporting plate
(10b) is covered, and the carrier base (10) is on pedestal (11).
9. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：The master
Separating brake lever (8) and spare separating brake lever (5) are attached separately to the upper groove (11a) and lower groove (11b) of corresponding pedestal (11)
It is interior.
10. a kind of mechanical interlocks of double power supply automatic transfer switch as described in claim 1, it is characterised in that：It is described
Main operation mechanism main shaft (1) and standby operation mechanism main shaft (2) are attached separately to main operation mechanism
(A) and on the side plate of standby operation structure (B), the main operation mechanism (A) and standby operation structure (B) are on pedestal
Using pedestal (11) horizontal central line as symmetrical centre arrangement symmetrical above and below, the main operation mechanism (A) and the position standby operation structure (B)
In on the same vertical direction of pedestal (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671743.XA CN108807041A (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical interlocks of double power supply automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810671743.XA CN108807041A (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical interlocks of double power supply automatic transfer switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108807041A true CN108807041A (en) | 2018-11-13 |
Family
ID=64070853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810671743.XA Pending CN108807041A (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical interlocks of double power supply automatic transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108807041A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148553A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Transmission system of switch operating mechanism |
| CN115148558A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Operating mechanism of switch |
| CN115148551A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Position locking device of switch operating mechanism |
| CN115148557A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Operating system of switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115148553A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Transmission system of switch operating mechanism |
| CN115148558A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Operating mechanism of switch |
| CN115148551A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Position locking device of switch operating mechanism |
| CN115148557A (en) * | 2021-03-31 | 2022-10-04 | 上海良信电器股份有限公司 | Operating system of switch |
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