CN209046055U - A kind of safety low-pressure comprehensive distribution box - Google Patents
A kind of safety low-pressure comprehensive distribution box Download PDFInfo
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- CN209046055U CN209046055U CN201821628945.8U CN201821628945U CN209046055U CN 209046055 U CN209046055 U CN 209046055U CN 201821628945 U CN201821628945 U CN 201821628945U CN 209046055 U CN209046055 U CN 209046055U
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Abstract
The utility model provides a kind of safety low-pressure comprehensive distribution box, is related to the technical field of low-tension distribution box, comprising: the two-way disconnecting link of level Four air switch, level Four and anti-misoperation locking device；One end of the anti-misoperation locking device is connect with the input terminal of the level Four air switch, the other end is connect with the input terminal of the two-way disconnecting link of the level Four, when the level Four air switch is closed, and the two-way disconnecting link of level Four disconnects, the anti-misoperation locking device disconnects the level Four air switch；And when the two-way disconnecting link of the level Four disconnects, the anti-misoperation locking device is latched the level Four air switch.By the anti-misoperation locking device that level Four two-way disconnecting link and level Four air switch is arranged, security hidden trouble is avoided the occurrence of, and ground connection operation is carried out by the method for the grounding function of the two-way disconnecting link of level Four, while increasing safety, cumbersome work is avoided, working efficiency is accelerated.
Description
Technical field
The utility model relates to low-tension distribution box technical fields, more particularly, to a kind of safety low-pressure comprehensive distribution box.
Background technique
With the expansion of the laying project of rural power grids, the security hidden trouble of low-tension distribution box needs to cause people's weight
Depending on the low-tension distribution box of the new rural power grids in part, although having setting isolation switch and air switch, air switch and isolation switch
Between there is no anti-misoperation apparatus, be easy to appear security risk.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of safety low-pressure comprehensive distribution box, to solve existing skill
The low-tension distribution box of the new rural power grids in part in art, although having setting isolation switch and air switch, air switch and isolation knife
The technical issues of not having anti-misoperation apparatus between lock, being easy to appear security risk.
In a first aspect, the utility model embodiment provides a kind of safety low-pressure comprehensive distribution box, comprising: end of incoming cables, four
Grade air switch, the two-way disconnecting link of level Four, anti-misoperation locking device and leading-out terminal；
The end of incoming cables includes four circular holes, and the circular hole is used to fix the route that cabinet is accessed in circuit；
The level Four air switch includes four input terminals and four output ends, the line of four input terminals and end of incoming cables
Road is separately connected, and when the level Four air switch detects that electric current is more than rated current in circuit, disconnects the level Four air
Switch, makes circuit switch to off state by channel status；
The two-way disconnecting link of level Four includes four input terminals, four output ends and four disconnecting links, four input terminals point
It is not connect with four output ends of the level Four air switch, four output ends ground connection, the static contact of the disconnecting link and institute
State the input terminal connection of the two-way disconnecting link of level Four, another static contact connect with the output end, when the disconnecting link moving contact and
When the output end connection of the two-way disconnecting link of level Four, the grounding where the input terminal of the two-way disconnecting link of level Four；When described
When the moving contact of disconnecting link is connect with the leading-out terminal, the leading-out terminal is connect with load, the input terminal of the two-way disconnecting link of level Four
The branch access at place；And the moving contact of the disconnecting link is with any static contact when not connecting, the two-way disconnecting link of level Four it is defeated
Branch circuit break where outlet；
One end of the anti-misoperation locking device is connect with the input terminal of the level Four air switch, the other end and the level Four
The input terminal of two-way disconnecting link connects, described anti-error to close when the level Four air switch is closed, and the two-way disconnecting link of level Four disconnects
Locking device disconnects the level Four air switch；And when the two-way disconnecting link of the level Four disconnects, the anti-misoperation locking device locking
The level Four air switch；
The leading-out terminal includes four circular holes, and the circular hole is used for the route for picking out cabinet fixed in circuit.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the anti-misoperation locking device includes: disconnecting link and tripping coil；
There is mechanical linkage between the disconnecting link and the two-way disconnecting link of the level Four；
When the level Four air switch is closed, and the two-way disconnecting link of level Four disconnects, the anti-misoperation locking device disconnects institute
State level Four air switch, comprising: the two-way disconnecting link of level Four disconnects, and the two-way disconnecting link of level Four is driven by the mechanical linkage
The disconnecting link disconnects, and the branch where the tripping coil disconnects, and the tripping coil controls the level Four air switch and disconnects；
When the two-way disconnecting link of the level Four disconnects, the anti-misoperation locking device is latched the level Four air switch, comprising: institute
It states the two-way disconnecting link of level Four to disconnect, the two-way disconnecting link of level Four drives the disconnecting link to disconnect by the mechanical linkage, the tripping
Branch where coil disconnects, and the tripping coil is latched the level Four air switch, close the level Four air switch can not
It closes.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, one end of the anti-misoperation locking device is connect with the input terminal of the level Four air switch, comprising: the anti-misoperation locking device
One end connect respectively with the default zero line of the input terminal of the level Four air switch, the input with the level Four air switch
The zero line side at end connects.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, the other end of the anti-misoperation locking device is connect with the input terminal of the two-way disconnecting link of the level Four, comprising: the anti-misoperation locking dress
The other end set is connect with the default zero line of the input terminal of the two-way disconnecting link of the level Four respectively, the two-way input with the level Four
The zero line side at end connects.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect,
In, further includes: low voltage surge arrester；
Three input terminals of the low voltage surge arrester are connect with three default zero lines of the end of incoming cables respectively, described low
Pressure arrester is for protecting the circuit from lightning voltage damage.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect,
In, further includes: backboard；
The end of incoming cables, level Four air switch, the two-way disconnecting link of level Four and leading-out terminal are both secured on backboard.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect,
In, the back of the backboard is used for circuit trace.
With reference to first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect, also
It include: cabinet.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, weather shield is equipped with above the cabinet.
With reference to first aspect, the utility model embodiment provides the 9th kind of possible embodiment of first aspect,
In, the front of the cabinet is equipped with chamber door, and the chamber door and cabinet are hinged, and the chamber door is equipped with safety lock.
The utility model embodiment brings following the utility model has the advantages that the utility model includes: that end of incoming cables, level Four air are opened
Pass, the two-way disconnecting link of level Four and leading-out terminal；The end of incoming cables includes four circular holes, and the circular hole accesses cabinet for fixing in circuit
Route；The level Four air switch includes four input terminals and four output ends, the line of four input terminals and end of incoming cables
Road is separately connected, and when the level Four air switch detects that electric current is more than rated current in circuit, disconnects the level Four air
Switch, makes circuit switch to off state by channel status；The two-way disconnecting link of level Four includes four input terminals and four output ends
With four disconnecting links, four input terminals are connect with four output ends of the level Four air switch respectively, four output
End ground connection, the static contact of the disconnecting link are connect with the input terminal of the two-way disconnecting link of the level Four, another static contact and the output
End connection, when the moving contact of the disconnecting link is connect with the output end of the two-way disconnecting link of the level Four, the two-way disconnecting link of level Four
Grounding where input terminal；When the moving contact of the disconnecting link is connect with the leading-out terminal, the leading-out terminal and load connect
It connects, the branch access where the input terminal of the two-way disconnecting link of level Four；And the moving contact of the disconnecting link not with any static contact
Branch circuit break when connection, where the output end of the two-way disconnecting link of level Four；One end of the anti-misoperation locking device and described four
The input terminal connection of grade air switch, the other end is connect with the input terminal of the two-way disconnecting link of the level Four, when the level Four air is opened
It closes and closes, when the two-way disconnecting link of level Four disconnects, the anti-misoperation locking device disconnects the level Four air switch；And work as institute
When stating the two-way disconnecting link of level Four and disconnecting, the anti-misoperation locking device is latched the level Four air switch.The leading-out terminal includes four
Circular hole, the circular hole are used for the route for picking out cabinet fixed in circuit, though to solve that low-tension distribution box exists in the prior art
So there are the setting two-way disconnecting link of level Four and level Four air switch, but there is no anti-error behaviour between the two-way disconnecting link of level Four and level Four air switch
The technical issues of making device, being easy to appear security risk, and pass through the grounding function of the two-way disconnecting link of level Four, it is no longer necessary to it uses
The method of conventional method hanging earthing conductor on the line carries out ground connection operation, while increasing safety, avoids cumbersome work, adds
Fast working efficiency.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is circuit diagram in a kind of safety low-pressure comprehensive distribution box provided by the embodiment of the utility model；
Fig. 2 is a kind of anti-misoperation locking device connection schematic diagram provided by the embodiment of the utility model；
Fig. 3 is the two-way chopper switch structural schematic diagram of level Four provided by the embodiment of the utility model；
Fig. 4 is circuit diagram in another safety low-pressure comprehensive distribution box provided by the embodiment of the utility model；
Fig. 5 is a kind of safety low-pressure comprehensive distribution box structural schematic diagram provided by the embodiment of the utility model.
Icon:
The end of incoming cables 01-；02- level Four air switch；The two-way disconnecting link of 03- level Four；04- leading-out terminal；05- anti-misoperation locking device；
06- low voltage surge arrester；07- weather shield；08- chamber door；09- safety lock；10- cabinet；11- disconnecting link；12- tripping coil；13- machine
Tool connecting rod.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
The low-tension distribution box of the new rural power grids in part at present, is not provided with isolation switch and air switch, even if being equipped with isolation knife
Lock and air switch, but isolation switch can not be grounded simultaneously with air switch, it is also necessary to it is mounted on the line using conventional method
The method of ground wire (need now to beat ground stud, pedal bar, tower hanging earthing conductor) carries out ground connection operation, is easy to appear security risk, is based on
This, a kind of safety low-pressure comprehensive distribution box provided by the embodiment of the utility model is kept away by setting isolation switch and air switch
Exempt from security hidden trouble occur, and pass through the grounding function of the two-way disconnecting link of level Four, it is no longer necessary to using conventional method in route
The method of upper hanging earthing conductor (need now to beat ground stud, pedal bar, tower hanging earthing conductor) carries out ground connection operation, increases the same of safety
When, cumbersome work is avoided, working efficiency is accelerated.
It is comprehensive to a kind of safety low-pressure disclosed in the utility model embodiment first for convenient for understanding the present embodiment
Distribution box is closed, is as shown in Figure 1 circuit diagram in a kind of safety low-pressure comprehensive distribution box provided by the embodiment of the utility model, packet
It includes: end of incoming cables 01, level Four air switch 02, the two-way disconnecting link 03 of level Four and leading-out terminal 04；
The end of incoming cables 01 includes four circular holes, and the circular hole is used to fix the route that cabinet is accessed in circuit；
In the utility model embodiment, end of incoming cables 01 refers generally to be set to the dress for being used to fix route above distribution box
It sets, wherein four circular holes are for fixing three firewires and a zero curve.
The level Four air switch 02 includes four input terminals and four output ends, four input terminals and end of incoming cables 01
Route be separately connected, when the level Four air switch 02 detects in circuit that electric current is more than rated current, disconnect described four
Grade air switch 02, makes circuit switch to off state by channel status；
In the utility model embodiment, the air switch 02 is one kind of breaker, and the air switch 02 is one
As long as electric current is more than the switch that rated current will disconnect automatically in kind of circuit, it integrates control and multi-protective function.
In addition to it can complete contact and disjunction circuit, short circuit, heavy overload and the under-voltage that circuit or electrical equipment can still be occurred etc. into
Row protection, improves the safety of circuit, guarantees the safety of electrician.
The two-way disconnecting link 03 of level Four includes four input terminals, four output ends and four disconnecting links, four input terminals
It is connect respectively with four output ends of the level Four air switch 02, four output ends ground connection, the static contact of the disconnecting link
It is connect with the input terminal of the two-way disconnecting link 03 of the level Four, another static contact is connect with the output end, when moving for the disconnecting link
When contact is connect with the output end of the two-way disconnecting link 03 of the level Four, the branch where the input terminal of the two-way disconnecting link 03 of level Four is connect
Ground；When the moving contact of the disconnecting link is connect with the leading-out terminal 04, the leading-out terminal 04 is connect with load, and the level Four is two-way
Branch access where the input terminal of disconnecting link 03；And the moving contact of the disconnecting link is with any static contact when not connecting, described four
Branch circuit break where the output end of the two-way disconnecting link 03 of grade；
In the utility model embodiment, traditional isolation switch is replaced using the two-way disconnecting link 03 of level Four, when the dynamic touching of disconnecting link
When head is connect with the input terminal of the two-way disconnecting link 03 of the level Four, the input terminal of the two-way disconnecting link 03 of level Four and the level Four are double
Branch access to where disconnecting link 03, the branch connection load, works normally working condition at this time for circuit；When moving for disconnecting link
When contact is connect with the output end of the two-way disconnecting link 03 of the level Four, the grounding at two-way 03 place of disconnecting link of level Four, wherein
One end of the two-way disconnecting link 03 of level Four is running position, and the other end is earthing position, when two-way level Four disconnecting link is closed to earthing position
When, line-to-ground requirement will be met, it is no longer necessary in low-voltage circuit head end hanging earthing conductor, while no longer need to multiple groups outlet direction extension
Ground line not only avoids the occurrence of safety problem, and greatly improve working efficiency for insulated wire without ground connection electrical verification ring is looked for.
One end of the anti-misoperation locking device 05 is connect with the input terminal of the level Four air switch 02, the other end with it is described
The input terminal of the two-way disconnecting link 03 of level Four connects, when the level Four air switch 02 is closed, and the two-way disconnecting link 03 of level Four disconnects,
The anti-misoperation locking device 05 disconnects the level Four air switch 02；It is described and when the two-way disconnecting link 03 of the level Four disconnects
Anti-misoperation locking device 05 is latched the level Four air switch 02；
It is as shown in Figure 2 a kind of anti-misoperation locking provided by the embodiment of the utility model in the utility model embodiment
Device connection schematic diagram, one end of the anti-misoperation locking device 05 are connect with the input terminal of the level Four air switch 02, comprising:
One end of the anti-misoperation locking device 05 is connect with the default zero line of the input terminal of the level Four air switch 02 respectively, with institute
State the zero line side connection of the input terminal of level Four air switch 02；The other end of the anti-misoperation locking device 05 and the level Four are two-way
The input terminal of disconnecting link 03 connects, comprising: the other end of the anti-misoperation locking device 05 respectively with the two-way disconnecting link 03 of the level Four
The default zero line of input terminal connects, and the zero line side of the input terminal two-way with the level Four is connect.It is provided in distribution box anti-
Misoperation locking device 05, the low-tension distribution box of having air switch and isolation switch in status, due to air switch and isolation switch
Operation is not associated with mutually, is easy to appear that on-load pulls open isolation switch or disconnecting switch is not closed, directly closes air etc. accidentally
The case where operation, in this way operation, will cause the security risks such as arc light, and in response to this problem, device increases anti-misoperation locking tripping dress
Set, when power operation may be implemented, if the case where non-separate out air switch occurs, accidentally pulls open isolation switch, disconnecting link in movement but
When not being fully withdrawn also, automatic separate out air is switched, so that avoiding the occurrence of on-load pulls open this accidentally behaviour of two-way isolation switch
Make, protection operator's safety.When restoring power transmission, if isolation switch does not close to running position, air switch can not be closed, be prevented
There is security risk caused by maloperation.
The leading-out terminal 04 includes four circular holes, and the circular hole is used for the route for picking out cabinet fixed in circuit；
Occur in the utility model embodiment end refer generally to be set to below distribution box for fixing the device of route,
Wherein four circular holes are for fixing three firewires and a zero curve.
It is as shown in Figure 3 that level Four provided by the embodiment of the utility model is double in the another embodiment of the utility model
To chopper switch structural schematic diagram, the anti-misoperation locking device includes: disconnecting link and tripping coil；
There is mechanical linkage 13 between the disconnecting link and the two-way disconnecting link 03 of the level Four；
When the level Four air switch is closed, and the two-way disconnecting link 03 of level Four disconnects, the anti-misoperation locking device is disconnected
The level Four air switch, comprising: the two-way disconnecting link 03 of level Four disconnects, and the two-way disconnecting link 03 of level Four is connected by the machinery
Bar 13 drives the disconnecting link to disconnect, and the branch where the tripping coil disconnects, and the tripping coil controls the level Four air
Switch disconnects；
When the two-way disconnecting link 03 of the level Four disconnects, the anti-misoperation locking device is latched the level Four air switch, comprising:
The two-way disconnecting link 03 of level Four disconnects, and the two-way disconnecting link 03 of level Four drives the disconnecting link to disconnect by the mechanical linkage 13,
Branch where the tripping coil disconnects, and the tripping coil is latched the level Four air switch, opens the level Four air
Pass can not be closed.
In the utility model embodiment, using mechanical linkage 13 by the two-way disconnecting link 03 of the level Four and the disconnecting link phase
Even, the mechanical linkage 13, which is set to after the two-way disconnecting link 03 of the level Four is closed, makes circuit connect side, and construction personnel is just
Really operation is the first step, the two-way disconnecting link 03 of level Four described in pull-up, disconnects the connection with ground terminal；Second step, closure described four
The two-way disconnecting link 03 of grade makes load access circuit, circuit pathways；Third portion is closed level Four air switch.In order to avoid operator
There is mistake, devise anti-misoperation locking device, and mechanical linkage 13 is set, only when the two-way disconnecting link 03 of the level Four is closed,
When making load access circuit, the handle of the two-way disconnecting link 03 of level Four touches the mechanical linkage 13, the mechanical linkage 13
Transmission is closed disconnecting link, the branch access where the tripping coil, and the tripping coil controls the level Four air switch, only
Have when the branch access where tripping coil, the tripping coil work, the level Four air switch could be closed；Otherwise institute
Stating level Four air switch is blocking, that is, is realized in the case where the two-way disconnecting link 03 of level Four is not closed, and it is empty to be latched the level Four
Air cock, and, in fitting case when circuit dredging collateral, accidentally the two-way disconnecting link 03 of pull-up level Four, the transmission of mechanical linkage 13 disconnect disconnecting link,
Branch disconnects where the tripping coil, and the level Four air switch disconnects, and operator's operation error is avoided, because of on-load
It connects circuit to damage operator, protects the safety of operator.
It is as shown in Figure 4 that another safety provided by the utility model is low in the another embodiment of the utility model
Press comprehensive distribution box, further includes: low voltage surge arrester 06；
Three input terminals of the low voltage surge arrester 06 are connect with three default zero lines of the end of incoming cables 01 respectively, institute
Low voltage surge arrester 06 is stated for protecting the circuit from lightning voltage damage.
In the utility model embodiment, the low voltage surge arrester 06 is one kind of arrester, can be effectively protected logical
Believe equipment, once there is abnormal voltage, arrester will be acted, and be played a protective role.When the communications cable or equipment are just
When running under normal operating voltage, arrester will not generate effect, be considered as open circuit for ground.Once there is high voltage, and endanger
And when protected device insulation, arrester acts immediately, by high-voltage impact conduct current the earth, so that voltage magnitude is limited,
Protect the communications cable and apparatus insulated.After having served as loss of voltage, arrester restores to the original state rapidly, works normally communication line.
Therefore, the main function of arrester is the effect by parallel spark gap or nonlinear resistance, is cut to invasion flow waves
Width reduces overvoltage value suffered by protected device, to play the role of protecting communication line and equipment.The utility model uses
Arrester while can also be used to fence operation high voltage come the high voltage for protecting thunder and lightning to generate, and increase the stability of distribution box, such as
Shown in figure, low voltage surge arrester 06 can also be installed in load-side, and effect can refer to realization principle and above-mentioned be installed on level Four
02 side of air switch, details are not described herein again.
In the another embodiment of the utility model, the safety low-pressure comprehensive distribution box further include: backboard；
The end of incoming cables, level Four air switch and the two-way disconnecting link of level Four and leading-out terminal are both secured on backboard.
In the utility model embodiment, the back of the backboard is used for circuit trace, in order to be more convenient electrician's trimming, line
The occurrence of neatly avoiding coiling of road, also avoids security hidden trouble, the front of backboard is used for a certain extent
Fixed end of incoming cables, level Four air switch, the two-way disconnecting link of level Four and leading-out terminal, but it is not limited only to this, with foundation actual conditions
It is fixed.
As described in Figure 5 is another safety low-pressure comprehensive distribution box provided by the embodiment of the utility model, further includes: case
Body 10；
Weather shield 07 is equipped with above the cabinet 10 described in the utility model embodiment, the size of weather shield 07 is according to practical
Depending on situation, such as: the height of cabinet 10, the considerations of wind-force factor need to be used as 07 size design of weather shield factor, this is practical new
Type embodiment does not limit this.The front of the cabinet 10 is equipped with chamber door 08, and the chamber door 08 and cabinet 10 are hinged, the case
Door 08 is equipped with safety lock 09, and the safety lock 09 safety problem occurs for preventing non-electrical worker person's opening cabinet 10.Institute
The technical staff in category field can be understood that, for convenience and simplicity of description, the system of foregoing description and the tool of device
Body running process, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of safety low-pressure comprehensive distribution box characterized by comprising end of incoming cables, level Four air switch, the two-way knife of level Four
Lock, anti-misoperation locking device and leading-out terminal；
The end of incoming cables includes four circular holes, and the circular hole is used to fix the route that cabinet is accessed in circuit；
The level Four air switch includes four input terminals and four output ends, the route point of four input terminals and end of incoming cables
It does not connect, when the level Four air switch detects that electric current is more than rated current in circuit, disconnects the level Four air switch,
Circuit is set to switch to off state by channel status；
The two-way disconnecting link of level Four include four input terminals, four output ends and four disconnecting links, four input terminals respectively with
Four output ends of the level Four air switch connect, four output ends ground connection, the static contact of the disconnecting link and described four
The input terminal connection of the two-way disconnecting link of grade, another static contact are connect with the output end, when the disconnecting link moving contact with it is described
When the output end connection of the two-way disconnecting link of level Four, the grounding where the input terminal of the two-way disconnecting link of level Four；When the disconnecting link
Moving contact when being connect with the leading-out terminal, the leading-out terminal is connect with load, where the input terminal of the two-way disconnecting link of level Four
Branch access；And the moving contact of the disconnecting link is with any static contact when not connecting, the output end of the two-way disconnecting link of level Four
The branch circuit break at place；
One end of the anti-misoperation locking device is connect with the input terminal of the level Four air switch, and the other end and the level Four are two-way
The input terminal of disconnecting link connects, when the level Four air switch is closed, and the two-way disconnecting link of level Four disconnects, the anti-misoperation locking dress
It sets and disconnects the level Four air switch；And when the two-way disconnecting link of the level Four disconnects, described in the anti-misoperation locking device locking
Level Four air switch；
The leading-out terminal includes four circular holes, and the circular hole is used for the route for picking out cabinet fixed in circuit.
2. safety low-pressure comprehensive distribution box according to claim 1, which is characterized in that the anti-misoperation locking device includes:
Disconnecting link and tripping coil；
There is mechanical linkage between the disconnecting link and the two-way disconnecting link of the level Four；
When the level Four air switch is closed, and the two-way disconnecting link of level Four disconnects, the anti-misoperation locking device disconnects described four
Grade air switch, comprising: the two-way disconnecting link of level Four disconnects, and the two-way disconnecting link of level Four passes through described in mechanical linkage drive
Disconnecting link disconnects, and the branch where the tripping coil disconnects, and the tripping coil controls the level Four air switch and disconnects；
When the two-way disconnecting link of the level Four disconnects, the anti-misoperation locking device is latched the level Four air switch, comprising: described four
The two-way disconnecting link of grade disconnects, and the two-way disconnecting link of level Four drives the disconnecting link to disconnect by the mechanical linkage, the tripping coil
The branch at place disconnects, and the tripping coil is latched the level Four air switch, be closed the level Four air switch can not.
3. safety low-pressure comprehensive distribution box according to claim 2, which is characterized in that one end of the anti-misoperation locking device
Connect with the input terminal of the level Four air switch, comprising: one end of the anti-misoperation locking device respectively with the level Four air
The default zero line of the input terminal of switch connects, and connect with the zero line side of the input terminal of the level Four air switch.
4. safety low-pressure comprehensive distribution box according to claim 2, which is characterized in that the anti-misoperation locking device it is another
End connect with the input terminal of the two-way disconnecting link of the level Four, comprising: the other end of the anti-misoperation locking device respectively with the level Four
The default zero line of the input terminal of two-way disconnecting link connects, and the zero line side of the input terminal two-way with the level Four is connect.
5. safety low-pressure comprehensive distribution box according to claim 1, which is characterized in that further include: low voltage surge arrester；
Three input terminals of the low voltage surge arrester are connect with three default zero lines of the end of incoming cables respectively, and the low pressure is kept away
Thunder device is for protecting the circuit from lightning voltage damage.
6. safety low-pressure comprehensive distribution box according to claim 1, which is characterized in that further include: backboard；
The end of incoming cables, level Four air switch, the two-way disconnecting link of level Four and leading-out terminal are both secured on backboard.
7. safety low-pressure comprehensive distribution box according to claim 6, which is characterized in that the back of the backboard is used for circuit
Cabling.
8. safety low-pressure comprehensive distribution box according to claim 1, which is characterized in that further include: cabinet.
9. safety low-pressure comprehensive distribution box according to claim 8, which is characterized in that be equipped with and keep off the rain above the cabinet
Plate.
10. safety low-pressure comprehensive distribution box according to claim 9, which is characterized in that the front of the cabinet is equipped with case
Door, the chamber door and cabinet are hinged, and the chamber door is equipped with safety lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821628945.8U CN209046055U (en) | 2018-10-08 | 2018-10-08 | A kind of safety low-pressure comprehensive distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821628945.8U CN209046055U (en) | 2018-10-08 | 2018-10-08 | A kind of safety low-pressure comprehensive distribution box |
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| Publication Number | Publication Date |
|---|---|
| CN209046055U true CN209046055U (en) | 2019-06-28 |
Family
ID=67035226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821628945.8U Active CN209046055U (en) | 2018-10-08 | 2018-10-08 | A kind of safety low-pressure comprehensive distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209046055U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921323A (en) * | 2021-10-18 | 2022-01-11 | 海南电网有限责任公司定安供电局 | Low-voltage grounding knife switch for low-voltage distribution box |
| CN115083825A (en) * | 2022-07-27 | 2022-09-20 | 广东电网有限责任公司揭阳供电局 | Knife switch |
-
2018
- 2018-10-08 CN CN201821628945.8U patent/CN209046055U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921323A (en) * | 2021-10-18 | 2022-01-11 | 海南电网有限责任公司定安供电局 | Low-voltage grounding knife switch for low-voltage distribution box |
| CN113921323B (en) * | 2021-10-18 | 2023-04-14 | 海南电网有限责任公司定安供电局 | Low-voltage grounding knife switch for low-voltage distribution box |
| CN115083825A (en) * | 2022-07-27 | 2022-09-20 | 广东电网有限责任公司揭阳供电局 | Knife switch |
| CN115083825B (en) * | 2022-07-27 | 2023-01-24 | 广东电网有限责任公司揭阳供电局 | Knife switch |
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