CN206134534U - Two bypass automatic change -over - Google Patents
Two bypass automatic change -over Download PDFInfo
- Publication number
- CN206134534U CN206134534U CN201621122644.9U CN201621122644U CN206134534U CN 206134534 U CN206134534 U CN 206134534U CN 201621122644 U CN201621122644 U CN 201621122644U CN 206134534 U CN206134534 U CN 206134534U
- Authority
- CN
- China
- Prior art keywords
- switch
- main
- road
- performs
- crank connecting
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model belongs to the technical field of low voltage electric class product manufacture and application, concretely relates to two bypass automatic change -over, mainly be applied to data center, mobile communication, important power consumption place such as subway, solve and I the way or II the tunnel carry out mainly that the switch breaks down or need normal the maintenance take the maintenance in -process out in taking out drawer type automatic change -over, its load of taking will normally be worked and to be cut off the power supply, mainly carry out the switch or II the tunnel mainly carry out the problem that the switch carries out incessant the normal power supply through I tunnel among the the bypass switch.
Description
Technical field
This utility model belongs to low-voltage electrical class product manufacturing and applied technical field, and in particular to a kind of double bypasses are automatic
Permutator, is mainly used in the important electricity consumption place such as data center, mobile communication, subway.
Background technology
At present using single bypass product in some low-voltage distribution systems, single bypass product is also capable of achieving to connect load
Continuous uninterrupted power supply, when the problems such as Dan Danggai roads power supply occurring over-pressed or under-voltage, just cannot accomplish to carry out load it is continuous not between
Cut-off electricity, the premise Shi Gai road power supply for carrying out continuous uninterrupted power supply to load is realized all the time not using single bypass product assurance
There are problems that any.Anything is all no absolute, and who dare not also ensure or promise to undertake that used power supply does not go wrong.Institute
So that the application of single bypass product has its limitation.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of pair of bypass automatic change-over, solves to work as and takes out
The main switch that performs in the tunnels of drawer formula automatic change-over Zhong I or II road breaks down or needs conventional maintenance to extract out in maintenance process,
Its bringing onto load wants normal work to be unable to power-off, by the roads of by-pass switch Zhong I it is main perform switch or II road it is main execution switch into
The problem of the uninterrupted normal power supply of row.
This utility model is achieved in that a kind of pair of bypass automatic change-over of offer, including master switch and bypass are opened
Close, master switch performs the switch A and main execution switch A in II road including I road is main, and the main execution switch A in I road and main execution the in II road switch A
Connected by mechanical interlock；By-pass switch includes that I road is main and performs the switch B and main execution switch B in II road, and the main execution in I road is opened
Close B and the main switch B that performs in II road is connected by mechanical interlock；
Master switch and by-pass switch are connected by automatic conversion component, and automatic conversion component includes 4 driving members and 4 biographies
Moving-wire, in the both sides of the both sides of master switch, by-pass switch a driving member is fixed respectively, driving member include being fixed on master switch and
Support, 2 groups of crank connecting links and 2 drive line union joints on by-pass switch, crank connecting link is rotatably mounted on support, bent
The connecting rod of stent outer that handle connecting rod is divided into the crank on the inside of support and is fixedly connected with crank, drive line union joint is included in
Roller and be fixed on the locating part of support above and below that connecting rod one end is fixed, the main main shaft for performing switch A in I road and
Electrical apparatus release, the main main shaft and electrical apparatus release for performing switch A in II road connect respectively with two crank connecting links of the driving member of master switch both sides
Touch, the main main shaft and electrical apparatus release for performing switch B in I road, the main main shaft and electrical apparatus release for performing switch B in II road are opened respectively with bypass
Close two crank connecting links contact of the driving member of both sides, the main main execution of crank connecting link and II road for performing switch A main shaft contacts in I road
Crank connecting link, the main crank connecting link for performing switch A electrical apparatus release contacts in I road and main execution the in II road that switch B electrical apparatus releases are contacted switchs B
The crank connecting link of main shaft contact, the main switch B electrical apparatus releases that perform of the main crank connecting link for performing switch A main shaft contacts in II road and I road connect
Tactile crank connecting link, the song of the main execution switch B main shaft contacts of the main crank connecting link for performing switch A electrical apparatus release contacts in II road and I road
Respectively by 1 drive line connection, the termination of drive line is connected to corresponding crank and connects handle connecting rod by drive line union joint
On bar.
Further, the main main mechanical interlock performed between switch A of switch A and II road that performs in I road causes that I road is main to hold
The main switch A that performs in II road is in gate-dividing state when row switch A closes a floodgate, and the main main switch A that performs in I road when switch A closes a floodgate that performs in II road is in
Gate-dividing state；The main main mechanical interlock performed between switch B of switch B and II road that performs in I road causes the main execution switch B in I road
The main switch B that performs in II road is in gate-dividing state during combined floodgate, and the main main switch B that performs in I road when switch B closes a floodgate that performs in II road is in separating brake shape
State.
Further, two crank connecting links on a driving member are cornerwise positioned at support with the junction point of the support
Two ends.
Further, drive line is steel cable.
Further, double bypass automatic change-overs are 3 extremely double bypass automatic change-overs or 4 extremely double bypass automatic conversions
Switch.
Compared with prior art, the utility model has the advantage of, realize and no matter opened by the main execution in the roads of master switch Zhong I
Closing A or the main switch A that performs in II road carries out normal power supply to load, or performs switch B or II tunnel by the roads of by-pass switch Zhong I are main
The main switch B that performs carries out normal power supply to load, can all ensure that its is mutual mechanical interlocked, and both two-way can not power simultaneously.
Master switch is normal to loading by the main execution switch B in the roads of by-pass switch Zhong I or the main execution switch B in II road from after drawout chassis extraction
During power supply, if during the main execution switch B in I road or the main execution switch B in II road are to loading normal power supply, I road power supply or II
The problems such as road power supply occurs over-pressed or under-voltage, can manually, electrically or automatic switching performs switch B or the main execution in I road to II road is main
Switch B, is continued to carry out normal power supply to loading by the main switch B that performs of the main execution switch B in II road or I road.In a word, double bypasses are automatic
Transfer switching equipment, after master switch is extracted out from drawout chassis, can perform switch B or II tunnel master by the way that the roads of by-pass switch Zhong I are main
Perform continuous uninterrupted power supply of the switch B realizations to load.In addition, the main execution switch in master switch and by-pass switch possesses connecing
Logical, breaking capacity and the advantage that the specified index of tolerance in short-term is high, conversion speed is fast.It is double bypass automatic transfer switching electric appliances with
The intelligent controller for being matched also is capable of achieving remote electric operating and is automatically brought into operation.
Description of the drawings
Fig. 1 is this utility model structural representation；
The main driving member inner face structural representation for performing switch A main shafts and electrical apparatus release contact in the roads of Fig. 2-1 Wei Yu I；
The main driving member formation outside schematic diagram for performing switch A main shafts and electrical apparatus release contact in the roads of Fig. 2-2 Wei Yu I；
The main driving member formation outside schematic diagram for performing switch B main shafts and electrical apparatus release contact in the roads of Fig. 3 Wei Yu II；
The main driving member inner face structural representation for performing switch B main shafts and electrical apparatus release contact in the roads of Fig. 4 Wei Yu I；
The main driving member formation outside schematic diagram for performing switch A main shafts and electrical apparatus release contact in the roads of Fig. 5 Wei Yu II；
Fig. 6-1 is a kind of preferred embodiment A faces schematic diagram of mechanical interlock；
Fig. 6-2 is the mechanical interlock B face schematic diagram in Fig. 6-1；
Applications of the Fig. 7 for the mechanical interlock in Fig. 6-1, Fig. 6-2 in automatic change-over.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with the accompanying drawings and implement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is used only for explaining
This utility model, is not used to limit this utility model.
With reference to Fig. 1, Fig. 2-1, Fig. 2-2, Fig. 3, Fig. 4 and Fig. 5, this utility model provides a kind of double bypass automatic conversions and opens
Pass, including master switch 1 and by-pass switch 2, master switch 1 includes that the main execution switch A11 in I road and main execution the in II road switch A12, I tunnel
Main switch A11 and the main switch A12 that performs in II road of performing is by mechanical interlock connection；By-pass switch includes that the main execution in I road is opened
Close B21 and the main switch B22, the main execution switch B21 in I road and the main switch B22 that performs in II road of performing in II road passes through mechanical interlock
Connection；
Master switch 1 and by-pass switch 2 are connected by automatic conversion component, and automatic conversion component includes 4 driving members 3 and 4
Bar drive line 4, in the both sides of the both sides of master switch 1, by-pass switch 2 driving member 3 is fixed respectively, and driving member 3 includes fixing
31,2 groups of crank connecting links of support on master switch and by-pass switch and 2 drive line union joints 33, crank connecting link is rotationally
It is fixed on support 31, the outside of support 31 that crank connecting link is divided into the crank 321 on the inside of support and is fixedly connected with crank 321
Connecting rod 322, drive line union joint 33 be included in the one end of connecting rod 322 fixation roller and be fixed on the above and below of support 31
Locating part, the main main shaft and electrical apparatus release for performing switch A11 in I road, the main main shaft and electrical apparatus release point for performing switch A12 in II road
Do not contact with two crank connecting links of the driving member 3 of the both sides of master switch 1, I road is main to perform the main shaft and dropout for switching B21
The main main shaft and electrical apparatus release for performing switch B22 in device, II road respectively with two crank connecting links of the driving member 3 of the both sides of by-pass switch 2
Contact, the main crank for performing switch B22 electrical apparatus release contacts of the main crank connecting link for performing switch A11 main shaft contacts in I road and II road connects
Bar, the main crank connecting link for performing switch A11 electrical apparatus release contacts in I road and the main crank connecting link for performing switch B22 main shaft contacts in II road,
The main crank connecting link for performing switch A12 main shafts contact in II road and the main crank connecting link for performing switch B21 electrical apparatus release contacts in I road, II
The main crank connecting link for performing switch B21 main shaft contacts of the main crank connecting link for performing switch A12 electrical apparatus release contacts in road and I road leads to respectively
Cross 1 drive line 4 to connect, the termination of drive line 4 is connected on corresponding crank connecting link by drive line union joint 33.
The main switch A that performs in 1 Zhong of master switch, I roads carries out closing operation, the main main axis for performing switch A in I road, with main shaft
One crank connecting link of rigidly connected crank handle turns is rotated down, and by the pulling force effect of drive line 4, pulls hold main with II road
One crank connecting link of row switch B contacts rotates down and pushes the main electrical apparatus release for performing switch B in II road in by-pass switch 2.It is main
Switch the roads of 1 Zhong I it is main perform switch A be in " combined floodgates " state when, 2 Zhong of by-pass switch, II roads it is main perform switch B electrical apparatus release
It is depressed completely, the main execution switch B in 2 Zhong of by-pass switch, II roads " can not close a floodgate ", and (1 Zhong of master switch, II roads are main to perform switch
A " can not close a floodgate ").In this case, when master switch 1 breaks down or needs to safeguard, the tunnel masters of 2 Zhong of by-pass switch I can be made
Perform switch B and be in " combined floodgate " state.The main switch B that performs in 2 Zhong of by-pass switch, I roads carries out closing operation, in by-pass switch 2
I road is main to perform switch B main axis, rotates with the rigidly connected crank handle turns crank connecting link of main shaft, and by the drawing of drive line 4
Power is acted on, and is pulled the crank connecting link that execution switch A main with II road is contacted to be rotated up and is pushed the main execution in II road in master switch 1 and opens
Close the electrical apparatus release of A.When the main execution switch B in 2 Zhong of by-pass switch, I roads is in " combined floodgate " state, the main execution in the roads of 1 Zhong of master switch II
The electrical apparatus release of switch A is depressed completely, and the main switch A that performs in 1 Zhong of master switch, II roads " can not close a floodgate " (in by-pass switch 2
The main switch B that performs in II road " can not close a floodgate ").Then main execution the in 1 Zhong of master switch, I roads is switched after A separating brakes, master switch 1
Extracting out from drawout chassis carries out malfunction elimination maintenance or conventional maintenance.After master switch 1 is extracted out from drawout chassis, in master switch 1 with
The main crank connecting link for performing switch A contacts in II road is still in the state for pushing electrical apparatus release.The originally main execution in the roads of 1 Zhong of master switch I
Mechanical interlocked relation broken when switch A closes a floodgate, by 2 Zhong of by-pass switch, I roads are main the mechanical interlocked pass after switch B closes a floodgate is performed
System is substituted.During master switch 1 carries out malfunction elimination maintenance or conventional maintenance, by 2 Zhong of by-pass switch, I roads are main switch is performed
Still uninterrupted normal power supply is carried out to load.
After the failture evacuation of master switch 1 and reparation or after the completion of conventional maintenance, master switch 1 loads drawer by normal operating flow process
In seat.Now the state in which of master switch 1 is：The main electrical apparatus release for performing switch A in II road is in the state that is depressed, both in this state
The main switch A that performs in 1 Zhong of master switch, II roads " can not close a floodgate ", and the main execution switch A in 1 Zhong of master switch, I roads can be with " combined floodgate ".Will be main
Switch the main switch A that performs in the roads of 1 Zhong I to close a floodgate, its interlocked operation process being illustrated starting at will be repeated, both II in by-pass switch 2
The main switch B and the main switch A that performs in 1 Zhong of master switch, II roads of performing in road " can not close a floodgate ".Hold 2 Zhong of by-pass switch, I roads are main again
Row switch B " separating brake ", the main mechanical interlocked relation broken performed when switch B closes a floodgate in 2 Zhong of by-pass switch, I roads, by master switch 1
I road it is main perform switch A close a floodgate after mechanical interlocked relation substituted.Recover it and perform switch A by 1 Zhong of master switch, I roads are main
Continue the working condition to load supplying.
, whereas if during carrying out normal power supply to load by the main execution switch A in II road in master switch 1, needing bypass to open
Close main execution the in the roads of 2 Zhong II and switch B, extract master switch 1 out from drawout chassis carries out failture evacuation or conventional maintenance to it, its operation
Process and mutual mechanical interlocked relation with it is above-mentioned in the same manner.
Master switch 1 performs the switch B or main execution switch B in II road from after drawout chassis extraction by 2 Zhong of by-pass switch, I roads are main
Load is powered.During this period, if during the main execution in I road switchs B to loading normal power supply, I road power supply occurred
Pressure or it is under-voltage the problems such as, manually, electrically or automatic switching is to II tunnel can continue normal confession to load by the main switch B that performs in II road
Electricity.Conversely, during this period, if during the main execution switch B in II road is to loading normal power supply, II road power supply occurs over-pressed or deficient
The problems such as pressure, manually, electrically or automatic switching is to I tunnel normal power supply can be continued to load by the main switch B that performs in I road.
In a word, for double bypass automatic transfer switching electric appliances, after master switch 1 is extracted out from drawout chassis, can be opened by bypass
Close the main continuous uninterrupted power supply for performing switch B realizations to load of the main execution switch B in the roads of 2 Zhong I or II road.
Mechanical interlock causes main execution the in I road to switch the main switch A that performs in II road when A closes a floodgate in gate-dividing state, II tunnel master
It is in gate-dividing state to perform the main switch A that performs in I road when switch A closes a floodgate；The main switch B that performs in II road is in when the main execution switch B in I road closes a floodgate
Gate-dividing state, the main main switch B that performs in I road when switch B closes a floodgate that performs in II road is in gate-dividing state.Can reach in prior art this
The mechanical interlock of effect goes for this utility model, and with reference to Fig. 6-1, Fig. 6-2, Fig. 7, giving one kind can be real
Now the mechanical interlock preferred embodiment of this kind of function, is realized two in automatic transfer switching electric appliance product by operations described below
It is mechanical interlocked that individual main execution is switched：When I road is main performs switch " combined floodgate " operation, performs switch spindle because I road is main and rotate,
The road kinematic link of I road rigidly connected with main shaft crank handle turns I is rotated, and while I road kinematic link is rotated, promotes the interlocking of II tunnel
Press plate rotary, II tunnel interlocking pressing plate front end push II road it is main perform switch electrical apparatus release, prevent II road it is main perform switch from
" combined floodgate ".Realize the way switch of I way switch locking II., whereas if when the main execution switch in II road is in " combined floodgate " state, due to II
The main switch spindle that performs in road is rotated, and the road kinematic link of II road rigidly connected with main shaft crank handle turns II is rotated, I tunnel interlocking pressing plate
The main electrical apparatus release for performing switch in I road is depressed, prevents the main switch that performs in I road from " combined floodgate ", realized the tunnel of II way switch locking I and open
Close.In so as to reliably realize automatic transfer switching electric appliance product two it is main perform switch it is mechanical interlocked.
For the crank connecting link on rational deployment driving member 3, as the improvement of technical scheme, two on a driving member 3
Individual crank connecting link is located at the cornerwise two ends of support 1 with the junction point of support 1.
Intensity according to required for drive line 4, used as the improvement of technical scheme, drive line is steel cable.
This utility model be applied to automatic change-over in need electric equipment products, it is preferable that double bypass automatic conversions
Switch as 3 extremely double bypass automatic change-overs or 4 extremely double bypass automatic change-overs.
Claims (5)
1. pair bypass automatic change-over, it is characterised in that including master switch and by-pass switch, master switch includes the main execution in I road
Switch A and the main switch A, the main execution switch A in I road and the main switch A that performs in II road of performing in II road are connected by mechanical interlock；It is other
Way switch switchs the B and main execution switch B in II road including main execution the in I road, and the main execution switch B in I road and the main execution in II road switch B and pass through
Mechanical interlock connects；
The master switch and by-pass switch are connected by automatic conversion component, and automatic conversion component includes 4 driving members and 4 biographies
Moving-wire, in the both sides of the both sides of master switch, by-pass switch a driving member is fixed respectively, driving member include being fixed on master switch and
Support, 2 groups of crank connecting links and 2 drive line union joints on by-pass switch, crank connecting link is rotatably mounted on support, bent
The connecting rod of stent outer that handle connecting rod is divided into the crank on the inside of support and is fixedly connected with crank, drive line union joint is included in
Roller and be fixed on the locating part of support above and below that connecting rod one end is fixed, the main main shaft for performing switch A in I road and
Electrical apparatus release, the main main shaft and electrical apparatus release for performing switch A in II road connect respectively with two crank connecting links of the driving member of master switch both sides
Touch, the main main shaft and electrical apparatus release for performing switch B in I road, the main main shaft and electrical apparatus release for performing switch B in II road are opened respectively with bypass
Close two crank connecting links contact of the driving member of both sides, the main main execution of crank connecting link and II road for performing switch A main shaft contacts in I road
Crank connecting link, the main crank connecting link for performing switch A electrical apparatus release contacts in I road and main execution the in II road that switch B electrical apparatus releases are contacted switchs B
The crank connecting link of main shaft contact, the main switch B electrical apparatus releases that perform of the main crank connecting link for performing switch A main shaft contacts in II road and I road connect
Tactile crank connecting link, the song of the main execution switch B main shaft contacts of the main crank connecting link for performing switch A electrical apparatus release contacts in II road and I road
Respectively by 1 drive line connection, the termination of drive line is connected to corresponding crank and connects handle connecting rod by drive line union joint
On bar.
2. according to claim 1 pair of bypass automatic change-over, it is characterised in that I road is main to perform switch A and II
It is in separating brake that the main mechanical interlock performed between switch A in road causes the main main switch A that performs in II road when switch A closes a floodgate that performs in I road
State, the main main switch A that performs in I road when switch A closes a floodgate that performs in II road is in gate-dividing state；I road is main to perform switch B and the main execution in II road
Mechanical interlock between switch B causes main execution the in I road to switch the main switch B that performs in II road when B closes a floodgate in gate-dividing state, II tunnel
The main main switch B that performs in I road when switch B closes a floodgate that performs is in gate-dividing state.
3. according to claim 1 pair of bypass automatic change-over, it is characterised in that two on a driving member
Crank connecting link is located at the cornerwise two ends of support with the junction point of the support.
4. according to claim 1 pair of bypass automatic change-over, it is characterised in that the drive line is steel cable.
5. according to claim 1 pair of bypass automatic change-over, it is characterised in that described pair of bypass automatic change-over
For 3 extremely double bypass automatic change-overs or 4 extremely double bypass automatic change-overs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122644.9U CN206134534U (en) | 2016-10-13 | 2016-10-13 | Two bypass automatic change -over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122644.9U CN206134534U (en) | 2016-10-13 | 2016-10-13 | Two bypass automatic change -over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134534U true CN206134534U (en) | 2017-04-26 |
Family
ID=58573463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621122644.9U Withdrawn - After Issue CN206134534U (en) | 2016-10-13 | 2016-10-13 | Two bypass automatic change -over |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134534U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298309A (en) * | 2016-10-13 | 2017-01-04 | 沈阳斯沃电器有限公司 | Double bypass automatic change-overs |
| CN109119264A (en) * | 2018-09-28 | 2019-01-01 | 无锡韩光电器股份有限公司 | For bypassing the electrically operated disabling device of automatic transfer switching electric appliance |
| CN110379657A (en) * | 2019-07-16 | 2019-10-25 | 德布森电气（上海）有限公司 | A kind of withdrawable double bypass automatic change-overs |
| CN115864071A (en) * | 2022-12-01 | 2023-03-28 | 江苏卓胜微电子股份有限公司 | Bypass joint, machining equipment and maintenance method |
-
2016
- 2016-10-13 CN CN201621122644.9U patent/CN206134534U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106298309A (en) * | 2016-10-13 | 2017-01-04 | 沈阳斯沃电器有限公司 | Double bypass automatic change-overs |
| CN106298309B (en) * | 2016-10-13 | 2018-04-17 | 沈阳斯沃电器有限公司 | Double bypass automatic change-overs |
| CN109119264A (en) * | 2018-09-28 | 2019-01-01 | 无锡韩光电器股份有限公司 | For bypassing the electrically operated disabling device of automatic transfer switching electric appliance |
| CN109119264B (en) * | 2018-09-28 | 2023-09-26 | 无锡韩光电器股份有限公司 | Electric operation invalidation device for bypass automatic transfer switching device |
| CN110379657A (en) * | 2019-07-16 | 2019-10-25 | 德布森电气（上海）有限公司 | A kind of withdrawable double bypass automatic change-overs |
| CN115864071A (en) * | 2022-12-01 | 2023-03-28 | 江苏卓胜微电子股份有限公司 | Bypass joint, machining equipment and maintenance method |
| CN115864071B (en) * | 2022-12-01 | 2023-09-26 | 江苏卓胜微电子股份有限公司 | Bypass joint, processing equipment and maintenance method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206134534U (en) | Two bypass automatic change -over | |
| CN106298309B (en) | Double bypass automatic change-overs | |
| CN202990914U (en) | Direct push catwalk machine for low drill stand | |
| CN202197145U (en) | Intelligent dual-power automatic transfer switch | |
| CN206673684U (en) | A kind of power switching device based on PLC controls | |
| CN203055708U (en) | Electric operating mechanism for isolation switch | |
| CN210806845U (en) | Dual-power switch switching circuit | |
| CN103248113B (en) | A kind of automatic transfer switch controller | |
| CN103124103B (en) | Electricity utilization system of 10KV station of converter station and mutual switching and reverse switching methods of electricity utilization system through spare power automatic switching | |
| CN206595621U (en) | A kind of manipulator livewire work part flow arrangement | |
| CN206584883U (en) | A kind of intelligent breaker of the automatic divide-shut brake of remote control | |
| CN202135211U (en) | Intelligent track camera | |
| CN204256411U (en) | CAN communication mining intrinsic safety type crashstop closedown switch | |
| CN103578811B (en) | Circuit breaker interlocking device | |
| CN203278383U (en) | Economical controller of automatic changeover switch | |
| CN210245438U (en) | Manual tripping mechanism of underground coal mine distribution switch | |
| CN106877227B (en) | A kind of manipulator livewire work part flow arrangement | |
| CN105739421A (en) | Solenoid valve energy-saving control circuit based on PLC shut program control switching mode | |
| CN202423936U (en) | Interlocking device | |
| CN206236561U (en) | For the anti-reclosing device of breaker | |
| CN201247920Y (en) | Interlocking device of switch cabinet | |
| CN209133375U (en) | Biswitch rigidity interlocking mechanism | |
| CN201927354U (en) | USB (universal serial bus) gating controller | |
| CN104635944A (en) | Usb keyboard and mouse switcher | |
| CN202995313U (en) | Fire-fighting non-fire-fighting power switching-off double-power-supply automatic change-over switch electric appliance applicable to multi-signal input |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170426 Effective date of abandoning: 20180417 |