CN108735535A - Interlock between electric switch - Google Patents
Interlock between electric switch Download PDFInfo
- Publication number
- CN108735535A CN108735535A CN201710245772.5A CN201710245772A CN108735535A CN 108735535 A CN108735535 A CN 108735535A CN 201710245772 A CN201710245772 A CN 201710245772A CN 108735535 A CN108735535 A CN 108735535A
- Authority
- CN
- China
- Prior art keywords
- interlock
- lockset
- electric switch
- brake apparatus
- interlinked mechanism
- 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.)
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Classifications
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- 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
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The present invention is the interlock between a kind of electric switch, can execute mechanical interlock between two or more breakers.The interlock includes：One lockset；One interlinked mechanism interlocked when being pivoted with the lockset；One brake apparatus, to limit or discharge the action of the interlinked mechanism；One transmission device, to transmit brake signal to the brake apparatus；With a shell, the lockset, the interlinked mechanism, the brake apparatus and the transmission device are set to group.A kind of simple mechanicalness serial verb construction of interlock offer, device easy for installation, but preventing electric switch from malfunctioning really, can improve the security performance in electrical equipment use.
Description
Technical field
The invention relates to the interlocks between a kind of electric switch, and electrical safety can be improved especially with regard to one kind
The switch Lock device with two same action member of performance.
Background technology
For applicant of the present invention based on the cordiality to improving industry security, the experience done in fact with scene once had a series of passes
There are more than ten parts to apply for a patent and be approved in the achievement of the invention and creation of motor switch and power supply management, research and development.Especially
Ground, present invention applicant once provided a series of motor switch locking device design of practicalities, can be with the electricity of various labels and model
Machine switch is used in combination, and effect is good.Present invention applicant why have a series of this invention about motor switch safety with
Creation is in view of passing by many electrical hazards both at home and abroad, be all happened in the maintenance event of electromechanics, be mainly a lack of reality
Motor switch locking device.But there are no for various states locking device all applicatory so far.
" the electrical safety technical data " that Taiwan board of workers labourer safety and sanitation research institute published in 1999 is by reviving
It is pointed out in the research report that literary source is presided over：" one of the main reason for electrification accident is always labourer's unexpected injury should avoid as possible
To protect labourer safe.The main reason for electrification accident occurs is that public institution and labourer are insufficient to the cognition of electrical safety, is made
There are the potential dangers such as unsafe environment and unsafe behavior for working site." common electrical safety disaster mainly has
Two kinds, the first is from using electrical mechanical equipment, and second is the carelessness in electric operation.In order to remedy cause list
Position and labourer are insufficient to the cognition of electrical safety, prevent from generating harm using electrical operation, in Taiwan, " labourer's safety and sanitation are set
Apply rule " in the 45th article, further peremptory norm employer need to have safety devices using electrical mechanical equipment, that is, right
In the machinery using power running, there is significantly danger, should appropriate location be provided with the emergency braking apparatus of distinguishing mark, stand
It interdicts power and is interlocked with braking system, can quickly stop the operating of machinery when urgent.In addition, for preventing using electrical
Operation generate harm in terms of, in power failure operation, Taiwan " labourer's safety and sanitation facility rule " the 254th article of regulation
Employer for be engaged in after open circuit the circuit, the circuit support or the laying close to the circuit working substance, construction, inspection,
When the operations such as repairing, paint, it should take the switch of open circuit in operation after confirming open circuit with regard to the circuit, answer " locking "
Or the facility that mark " forbidding power transmission ", " in power failure operation " or setting monitoring personnel monitor.It is aforementioned the first come from using electricity
The disaster of the mechanical equipment of gas, caused by the reason is that almost most people for electrical safety interdict principle of dynamics cognition not
Foot.Although the 254th article of Taiwan " labourer's safety and sanitation facility rule " further provide for, opening for open circuit is taken in circuit
About answering " locking " in operation, but up to now, should the regulation of " locking " all often flow in empty talk, it is uncertain
It carries out.
It is provided according to International Power regulation NEC.422.31. (430.102) (440.14), the branch as xegregating unit
Switch or breaker should have blocking device；Xegregating unit position can be closed when referring in consuming device visual range or opening a way
Lock；And lockout mechanisms should be placed in appropriate location.The principle and purposes that its regulation is concluded are misdeliver in order to prevent electricity, inverse power transmission
(in the case where not influencing public safety), and specification：One, private indoor distributor cap does not have to locking；Two, public place electricity consumption
It locks；Switch handle locking can be used in motor centralized control panel；It must not then lock with when having unsafe condition after locking.
Therefore, blocking device is to prevent misdelivery electricity, inverse power transmission etc., because vision has the situation that can't see, it is possible to occur
Danger is latched so just may require that in repair, to ensure safety.In view of this, all there is life in the producer for manufacturing switch in the world
Produce relevant product.It is numerous including external hanging type, internal key type etc..Equally in OSHA（Occupational safety and health standard）,
Fire service law regulation etc. has mandatory provision and rule of punishing.
In special place, the demand that the requirement for switch has its different again, for example in many hazardous areas, such as change
Factory, powder magazine, gas, liquid factory, military installations etc. are learned, it is certain switch to be required to be closed in power transmission with electric switch,
It is inaccurate accidentally to be touched switch open circuit or malfunctioned, serious loss is caused, for example the stove heart is melting high temperature high pressure liquid, can make
At ouster le main consequence.So in certain Code in Hazardous Special Locations, switch must be the state for being latched in energization (closure) ON, because
Above-mentioned reason, so the producer of whole world manufacture killer switch also has one kind to be latched in logical on the device of switch locking
The device of electric (closure) ON states, and manufacture another product.
In Code in Hazardous Special Locations environment, certain specific functions be by demand, for example in many computer rooms that nobody garrisons,
Killer switch is in certain circuits, it is necessary to prevent external force malfunction from causing to power off, and cause damages and accident even occurs.But
For in the circuit, when an accident occurs, whether overload, fault current, earth fault etc., it is necessary to allow the breaker escape,
In order to avoid making equipment that damage occur even causes fire.So in the requirement of above-mentioned blocking device, and it is different from above two state,
A kind of forced blocking is in energization（It is closed, ON）State, a kind of forced blocking are broken in off-position（OFF）, again necessary when failure
Breaker can be allowed to make the action of escape so that accident is isolated.
It is the action that two breakers must be made mutually to do to lock there are many situation in many cases of practical power systems
State, i.e. two breaker interlockings（Interlock）, i.e. two breakers wherein only have an energization, cannot two it is logical simultaneously
Electricity, no it will cause short circuit accidents.Above-mentioned state is most of in a general case all to use automatic transfer switch (namely custom
Claim ATS), but automatic transfer switch is typically all two and comes on same casing, and breaker must same specification.?
Under actual state, all flexible application modes are lost, if the dress that the mode that can be locked with safety lock for switching of the present invention improves
It sets, then can solve long-term above-mentioned inconvenience.But it is able to accomplish that electrical resistance, to the function of lock, just meets its peace with mechanicalness
The requirement of full property.And solve above-mentioned various situations, it is necessary to the requirement of ON, OFF, Trip etc., it is necessary to have interlocking function.
When three breakers must be done to lock status, i.e. three breakers interlock the function of interlocking Tie, that is, three open circuits
Device is at most only allowed two and is closed at（ON）If the interlock between electric switch of the present invention can be applied, then can solve
Long problem.And due to can carry out mechanical aspects to lock, its absolute reliability can be improved.And by state
Mechanical effect can be conducive to identification, increase the convenience used and safety.The present invention and also improve, such as China
Inconvenience and disadvantage in Taiwan Patent M318184 Patent Case no-fuse switch locking device patents, can only lock escape position
The mode set can not be common to aforementioned although having met the requirement of the blocking device for the locking that must be able to have a power failure when repair
The situation of other different function demands and must interlocking function.The improvement that the present invention also improves switch safety interlock mode is special
In profit, the problem of being electronically likely to result in lock function to lock section part.The broken string that such as has a power failure may cause to malfunction
Or the puzzlement being failure to actuate.Countries in the world generally all use conventional lock, different sides for the mode locked in existing skill
Formula need to have different lockset and component, derive multiple safety lock state sample implementation, and without actual machine to locking work(
It can be distinguished with profit, will so cause the increase of production cost, and increase the burden in the management of product and the puzzlement of owner.Existing skill
Countries in the world have in the manufacturing firm of profession for interlocking device and manufacture a kind of lockset to lock, be generally commonly called as in skill
Kirkey is to do the work to lock with the key in lockset.If there is two locksets, a key is only put above, in addition one
A lockset must have key, key to pull up just be placed on an other lockset, be controlled with key.Similarly
When three locksets, then two keys are enclosed, are so reached to lock function with the control of key.Although it has versatility, and
Simple structure, installation are easy, but potential fatal defects are, when the improper intervention control operation using standby key, can be made
At malfunction, cause work safety dangerous.The above variety of problems exists for a long time, and domestic and international practitioner can not properly settle always this
The problems such as.
Invention content
The main object of the present invention is used in electric switch being provided in provide one kind, for example is between breaker and breaker
Interlock, be one kind can really mechanical interlock, be particularly suitable for short-range control, avoid because of electrical resistance
It causes to malfunction or be failure to actuate when failure.In detail, the main purpose of the present invention is between executable 1. two breakers
2. mechanical interlock prevents three while the mechanical interlock of input between three breakers, is 3. mutual between more breakers
Lock application and the mechanical switch security lock arrangement that a kind of 4. versatility is provided.A kind of simple structure of present invention offer, installation side
Just switch locking device, use that can be comprehensive above-mentioned various functions demand solution, and with infallible
The way that be combined with each other of mechanicalness, prevent the situation of malfunction from generating, the security performance in electrical equipment use can be improved.
Technical means to solve problem：
In order to achieve the above objectives, the interlock of safety lock for switching provided by the invention includes：One lockset；One with the lockset
The interlinked mechanism interlocked when pivot；One brake apparatus, to limit or discharge the action of the interlinked mechanism；With a transmission device,
To transmit brake signal to brake apparatus；And a shell, the lockset, the interlinked mechanism, the brake apparatus are set to group, and should
Transmission device.The interlock of the present invention has the transmission device of an auxiliary, can utilize such as line traffic control module, does a medium and provides one
Apart from transmission agency.It is force side to be preferably such that a line traffic control module to have both ends, one end, and one end is mobilizable to have in stress end
The acting device of medium or equal function.And the braking that must have one whether making safety lock for switching inside lever act
Mechanism, then combined with switch safety lock body lockset, it so can then reach interlocking function, and prevent the situation of malfunction
Occur, it is mechanical to locking safety higher, it is ensured that meet the requirement of public safety specification, and prevent the generation of contingency.
In order to reach the requirement of mechanical latching function, the lockset of locking is the locked state that can reach multiple positions,
The lockset must have special function, can do the transformation of various combinations, such as there are three position or two positions for key rotation
It sets, the requirement extracted or can not pulled away can be done at various locations, to meet the requirement of various status functions.
Again in order to reach the requirement of mechanical latching function, it is necessary to manufacture an arrestment mechanism, the arrestment mechanism one end with
The transmission device of auxiliary such as line traffic control module, and separately at least (group) safety lock for switching interlocks, the action state of arrestment mechanism
It is：When the start for the transmission device that at least as soon as (group) assists, then arrestment mechanism releases, and allows the lever activity inside lock
Freely.
It, can be in the rear of safety lock for switching or appropriate position to reach the mechanical interlock function between two breakers
It sets (comprising inside safety lock for switching), when safety lock for switching start, interlocks internal lever activity, the transmission dress assisted at this time
It sets line traffic control module such as to interlock, the lever inside another safety lock for switching will be made to be failure to actuate, between such two safety lock for switching
Mutual action, you can reach the malfunction that two breakers will not be put into simultaneously and cause the accident.
It, can be in safety lock for switching to reach the mechanical interlock function of preventing three between three breakers while putting into
Top or appropriate location (comprising inside safety lock for switching), place at least two or more the transmission devices assisted such as line traffic control mould
Block interlocks, and the case that can implement at this time is will to reserve a movable groove above safety lock for switching, in slot in have a washer, should
Washer and internal lever are affixed, so when safety lock for switching start, interlock internal lever action, promote the transmission dress of auxiliary
It sets line traffic control module such as to link, and makes lever action or the not start inside other two safety lock for switching, can so reach
Three at least one, switches are the states in locking, can so reach due function.
Such as above-mentioned two, safety lock for switching of the present invention is for interlocking the requirement of situation, in addition to can be in safety lock for switching
Internal mechanical mechanism does variation appropriate, can also apply and be changed to do in a manner of key.Additional auxiliary can be applied to pass
Dynamic device, and the device of an arrestment mechanism is done, and coordinate with the cross bar in lockset, and the opposite logical of braking protruded stigma position
Function, to reach the interlocking application between more breakers.
As previously discussed, in the interlocking application between more breakers, can obtain that a kind of generally applicable property uses opens
The interlock of safety lock is closed, and can be applied in most place, can be obtained most using the interlock of the present invention
Big economic benefit becomes a kind of outfit of standard standard, it is possible to reduce the puzzlement in maintenance of equipment in the future, solving to work as has
People accidentally takes standby key, when with the standby key start, will not generate malfunction, so as not to malfunction cause an accident or
Person's work pacifies event, to meet the requirement of safety.
In order to solve existing issue, the present invention in addition to novelty and progressive, having also contemplated city in the design process
The problem of field property.The problem of marketability, is other than the functionality that solution acts on, if for appropriate location or can meet the world
Regulation such as NEC, IEC, JIS, BS, CCC, CNS etc., as described above, mode and the attainable purpose work(of means institute that this solves
Energy property all can reach the requirement of current various specifications.
Description of the drawings
Fig. 1 is the appearance diagram of the interlock between electric switch of the present invention.
Fig. 2 is two interlock action state schematic diagrames of the interlock between electric switch of the present invention.
Fig. 3 is another case study on implementation action state signal of two interlocks of the interlock between electric switch of the present invention
Figure.
Fig. 4 is the another case study on implementation action state signal of two interlocks of the interlock between electric switch of the present invention
Figure.
Fig. 5 is three interlock action state schematic diagrames of the interlock between electric switch of the present invention.
Fig. 6 is appearance diagram of the internal key of the interlock between electric switch of the present invention in box body.
In figure：
Interlock 10；Ontology 11；Key 12；Lockset 13；
Locked position of coupler 14；Locked position of coupler shows 15；Normal position 16；
Normal position shows 17；Lever 18；Stripe shape trepanning 19；
Interlock positioning plate 20；Preceding fixed seat 21；Fixed seat 22 afterwards；Fixed screw holes 23；
Transmission device 24；Auxiliary drive 24A；Arrestment mechanism 26；Brake protruded stigma 27；
Mounting hole 28；Rear mounting hole 29；Box body 30；Fixed plate 31.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Interlock 10 between electric switch according to the present invention, the device preferred embodiment implemented, as shown in Figure 1,
Its locking device is by with a box-like ontology 11, the key 12 of ontology 11 as shown in the figure is inserted into lockset 13, and with inverse
Hour hands turn to locked position of coupler 14, at this time internal drive mechanism action, and lever 18 is made to be moved to locked position of coupler 14, and show or
It is shown in locked position of coupler and shows 15, normal position shows that 17 do not show.Otherwise when being clockwise to normal position 16,
Internal drive mechanism action at this time makes lever 18 be moved to normal position 16, and shows or be shown in normal position and show 17,
Locked position of coupler shows that 15 do not show at this time.There is a stripe shape trepanning 19 in the top of interlock 10 as shown in Figure 1, and centre has in one
Portion interlocks positioning plate 20, can be acted with the lever 18 inside lockset 13, all have one in the front and back of the gearing positioning plate 20
Fixed seat, preceding fixed seat 21 and rear fixed seat 22 fixed seat are fixed on box-like body 11, which has fixed screw holes 23,
The transmission device 24 of auxiliary can be disposed above, it can be as the gearing machine for providing the interlock 10 between this electric switch
Structure.The transmission device 24 of certain placement auxiliary can also be fixed in the rear mounting hole 29 of ontology 11, reach only electric with him
The function that the interlock 10 of device switch room interlocks.Lower in ontology 11 can be equipped with a device arrestment mechanism 26, and there is system in inside
Dynamic protruded stigma 27 can be fixed as the auxiliary drive 24A of his interlock 10 on this mounting hole 28, and be passed according to auxiliary
The start of device 24A is moved to control arrestment mechanism 26 so that the lever 18 in lockset 13 is controlled, and reaches mechanicalness to lock
Function.
Interlock 10 between electric switch according to the present invention, the first embodiment implemented, as shown in Figure 2.Interlocking dress
Setting 10 ontologies 11 has a rear mounting hole 29, can connect the transmission device 24 of placement auxiliary, which is linked in lock
Lever 18 inside tool 13.When file bar 18 is toward when 16 start of normal position, the also start of transmission device 24, and interlock to him only
The arrestment mechanism 26 of interlock 10, the arrestment mechanism 26 action (as shown in fig. 1) make his 10 internal file of interlock
Bar 18, which can not be driven, to be made and is locked in locked position of coupler 14.So when in his the wherein lockset 13 of interlock 10 if there is spare key
Spoon 12 will not act, and can so reach the function to lock.As shown in Figure 2, when interlock 10 is in locked position of coupler 14,
In front, the transmission device 24 linked with lockset 13 does not act 13 inside lever 18 of lockset.Simultaneously with his interlock 10
Arrestment mechanism 26 be failure to actuate, at this time he only interlock 10 can activity freely, so that it may to reach the work(being fully interlocked
Can, the phenomenon that not will produce malfunction.
Interlock 10 between electric switch according to the present invention, the second embodiment implemented, as shown in Figure 3.Interlocking dress
There is a gearing positioning plate 20 in the top for setting 10 ontologies 11, which closes with 13 inside lever 18 of lockset and interlock admittedly, this
The transmission device 24 of auxiliary, is disposed the fixed screw holes 23 being fixed in fixed seat 22 by fixed seat 22 after 11 top of body has one.
When file bar 18 is toward when 16 start of normal position, the also start of transmission device 24, and interlock to the braking of his interlock 10
Mechanism 26, the arrestment mechanism 26 action (as shown in Figure 3) make his 10 internal file bar 18 of interlock that can not be driven to lock
It is scheduled on locked position of coupler 14.So when his interlock 10 if there is standby key 12 will not act, can so reach pair
The function of lock.As shown in Figure 3, when interlock 10 is in locked position of coupler 14,13 inside lever 18 of lockset is in front, with lockset
The transmission devices 24 of 13 links do not act, while being failure to actuate with the arrestment mechanism of his interlock 10 26, he is only at this time
Interlock 10 can activity freely, so that it may with the function of complete sequential logic, the phenomenon that without will produce malfunction.
Interlock 10 between electric switch according to the present invention, the 3rd embodiment implemented, as shown in Figure 4.Interlocking dress
There is a gearing positioning plate 20 in the top for setting 10, which interlocks with 13 inside lever 18 of lockset, and 13 top of lockset has
The transmission device 24 of auxiliary is disposed the fixed screw holes 23 in fixed seat 21 before being fixed on, when lever 18 by fixed seat 21 before one
When past 14 start of locked position of coupler, the also start of transmission device 24, and interlock to the arrestment mechanism 26 of his interlock 10, the system
Motivation structure 26 is failure to actuate (as shown in Figure 4), so he only interlock 10 can activity freely, so that it may with completely sequence
The function of logic, the phenomenon that without will produce malfunction.As shown in Figure 4, when interlock 10 is in normal position 16, lockset
At rear, the transmission device 24 linked with lockset 13 does not act 13 inside levers 18, at the same with the system of his interlock 10
Motivation structure 26 acts, he can not be driven and be locked in locked position of coupler 14 10 internal file bar 18 of interlock only, so when him
If there is standby key 12 will not act in the wherein lockset 13 of interlock 10 only, the function to lock so can reach.
Interlock 10 between electric switch according to the present invention, the fourth embodiment implemented, as shown in Figure 5.Present case
Implementation case be third case study on implementation extension application, when using to three to lock function, the transmission device 24 of auxiliary must
There must be two.Similarly the arrestment mechanism 26 below interlock 10 also must be by the transmission device of other two interlocks 10
24 control, the interlock 10 that so ought be wherein braked, in its arrestment mechanism 26, as long as his interlock 10 is locked to
When locked position of coupler 14, lever 18 is just released at this time and limits movable function, such three switches are when doing interlock function, so that it may with
Achieve the effect that three will not ON simultaneously, and completed in a manner of mechanical.Similarly, three 10 interlocking work(of interlock
Can, it can also be reached with the extension application of the second case study on implementation, as set out above.
Interlock 10 between electric switch according to the present invention, another preferable case study on implementation implemented is as shown in fig. 6, be
Arrestment mechanism 26 and the interlinked mechanism interactive with lever 18 are placed in box body 30 by specification function as shown in Figure 1,
The fixed plate 31 of the outside only transmission device 24 of auxiliary, for another solution.
In conclusion the interlocking device of safety lock for switching of the present invention, structure that can be by internal mechanical and transmission
Mechanism, arrestment mechanism it is interconnected, the application of various specific demands can be solved, and solved to lock mechanism with mechanical
Electrically to do the accident that lock function may occur, present invention is particularly suitable between the switch of relatively short distance to lock function
Using the deep practicability for having industry.Embodiment described above be only to absolutely prove the present invention and the preferred embodiment lifted,
Protection scope of the present invention is without being limited thereto.Those skilled in the art on the basis of the present invention made by equivalent substitute or change
It changes, within protection scope of the present invention.Protection scope of the present invention is subject to claims.
Claims (6)
1. the interlock between a kind of electric switch, which is characterized in that including：
One lockset；
One interlinked mechanism interlocked when being pivoted with the lockset；
One brake apparatus, to limit or discharge the action of the interlinked mechanism；
One transmission device, to transmit brake signal to the brake apparatus；With
One shell sets the lockset, the interlinked mechanism, the brake apparatus and the transmission device to group.
2. the interlock between electric switch according to claim 1, which is characterized in that wherein the shell, which is equipped with, fixes
Seat, the transmission device can directly be locked in the shell or the fixed seat corresponding position.
3. the interlock between electric switch according to claim 1, which is characterized in that wherein the interlinked mechanism is a gear
Bar, which, which is equipped with, interlocks positioning plate and braking element, pivot to interlock with the lockset and stay in several positions of acquiescence
It sets；When the bar stays in default location, the bar bottom end or interlock positioning plate, the conflict transmission device transmit signal to he
The brake apparatus of interlock makes that brake apparatus limit or discharge that interlinked mechanism.
4. the interlock between electric switch according to claim 3, which is characterized in that wherein the braking element is one prominent
Column, the brake apparatus limit or when discharging the interlinked mechanism, be positioned in the protruded stigma, to limit the action of bar.
5. the interlock between electric switch according to claim 3, which is characterized in that wherein the braking element is a hole
Hole, the brake apparatus limit or when discharging the interlinked mechanism, be positioned in the hole, to limit the action of bar.
6. the interlock between electric switch according to claim 1, which is characterized in that wherein the surface of shell is equipped with one
Equipment is shown, with the mode of operation of display switch safety lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245772.5A CN108735535A (en) | 2017-04-14 | 2017-04-14 | Interlock between electric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245772.5A CN108735535A (en) | 2017-04-14 | 2017-04-14 | Interlock between electric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108735535A true CN108735535A (en) | 2018-11-02 |
Family
ID=63924643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710245772.5A Pending CN108735535A (en) | 2017-04-14 | 2017-04-14 | Interlock between electric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108735535A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922089Y (en) * | 2006-05-25 | 2007-07-11 | 武汉普天通信设备集团有限公司 | Switch inter-locking device used for Micro circuit breaker |
| CN201430108Y (en) * | 2009-06-25 | 2010-03-24 | 上海宝临超亚电器有限公司 | Mechanism interlocking device of high voltage circuit breaker |
| CN201556873U (en) * | 2009-12-11 | 2010-08-18 | 天水长城开关厂有限公司 | Interlocking device of earth switch used for propelling mechanism |
| CN101834412A (en) * | 2010-06-01 | 2010-09-15 | 武汉长兴电器发展有限公司 | Switch cabinet mechanical interlocking matched set |
| CN202488019U (en) * | 2012-03-01 | 2012-10-10 | 江苏电科电气设备有限公司 | Interlocking mechanism of circuit breaker cabinet switch room for ring net |
| CN202564092U (en) * | 2011-11-30 | 2012-11-28 | Abb技术有限公司 | Interlocking device between breaker and disconnector |
-
2017
- 2017-04-14 CN CN201710245772.5A patent/CN108735535A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922089Y (en) * | 2006-05-25 | 2007-07-11 | 武汉普天通信设备集团有限公司 | Switch inter-locking device used for Micro circuit breaker |
| CN201430108Y (en) * | 2009-06-25 | 2010-03-24 | 上海宝临超亚电器有限公司 | Mechanism interlocking device of high voltage circuit breaker |
| CN201556873U (en) * | 2009-12-11 | 2010-08-18 | 天水长城开关厂有限公司 | Interlocking device of earth switch used for propelling mechanism |
| CN101834412A (en) * | 2010-06-01 | 2010-09-15 | 武汉长兴电器发展有限公司 | Switch cabinet mechanical interlocking matched set |
| CN202564092U (en) * | 2011-11-30 | 2012-11-28 | Abb技术有限公司 | Interlocking device between breaker and disconnector |
| CN202488019U (en) * | 2012-03-01 | 2012-10-10 | 江苏电科电气设备有限公司 | Interlocking mechanism of circuit breaker cabinet switch room for ring net |
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Application publication date: 20181102 |