CN110993456B

CN110993456B - Switching-on driving device and switching-on system for miniature circuit breaker

Info

Publication number: CN110993456B
Application number: CN201911192883.XA
Authority: CN
Inventors: 王斌; 王蒙; 王飞; 刘迪; 麻宗宇
Original assignee: Anhui Technical College of Mechanical and Electrical Engineering
Current assignee: Anhui Technical College of Mechanical and Electrical Engineering
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2021-11-16
Anticipated expiration: 2039-11-28
Also published as: CN110993456A

Abstract

The invention discloses a switching-on driving device and a switching-on system for a miniature circuit breaker, which comprise: the driving miniature circuit breaker is linked with the driven miniature circuit breakers through an assembly rod so as to realize switching-on and switching-off of the driven miniature circuit breakers; the driving miniature circuit breaker and the driven miniature circuit breaker are respectively provided with a first handle and a second handle for controlling switching on and switching off, the first handle is provided with a turning axis, the driving miniature circuit breaker enters a switching-on state after being turned upwards along the turning axis, the driven miniature circuit breaker enters a switching-off state after being turned downwards, and the second handle is also provided with a turning axis; and each on-off unit is touched through the second latch tongue to remove the connection between the driven miniature circuit breaker after touching and the assembly rod, so that the driving miniature circuit breaker is linked with a part of the driven miniature circuit breakers, and automatic on-off is realized.

Description

Switching-on driving device and switching-on system for miniature circuit breaker

Technical Field

The invention relates to the technical field of miniature circuit breakers, in particular to a switching-on driving device and a switching-on system for a miniature circuit breaker.

Background

In the communication and electric power field, miniature circuit breaker is the key equipment of assurance power consumption safety and circuit switching, along with the release of state to smart power grids plan, it is an important direction that the circuit breaker need step forward to the intellectuality, the circuit breaker has the function of automatic separating brake, when the coil current of inside is too big usually, the action of release is in order to trigger operating handle, make circuit breaker separating brake advance and the circuit of disconnection, realize the protection of circuit, but the switching-on needs the manual operation of people, at present, the miniature circuit breaker that uses most on the market is manual divide-shut brake formula, simple structure is with low costs, widely apply to in the old electric wire netting.

Along with the development of science and technology, intelligent household electrical appliances obtain extensive application, and as the miniature circuit breaker of protection electrical apparatus, a lot of intelligent control device that have installed additional to through the signal come drive miniature circuit breaker's divide-shut brake operation, but this kind of device has the drawback:

in the prior art, the application number is 200910179395.5, and the invention patent is named as an electric operating mechanism for realizing the automatic switching-on function of a miniature circuit breaker, which solves the problem of manual switching-on, but the invention patent is only used as an independent drive and can not drive other unpowered circuit breakers to switch on, so that the unpowered circuit breakers parallel to the circuit breakers are required to be manually switched on;

in the prior art, the utility model patent with the application number of 201621104404.6, named as a power miniature circuit breaker and a combined miniature circuit breaker comprising the circuit breaker solves the problem of manual switching-on, and can drive parallel non-power miniature circuit breakers to switch on and off through a prism, firstly, the prism penetrates through the inside of the circuit breaker, and the circuit breaker is used as equipment for frequent maintenance, so that the maintenance (such as oiling on the prism) is inconvenient, and a plurality of circuit breakers need to be completely disassembled; in addition, due to the linkage of the prism shafts, the circuit breakers which do not need to be switched on and off are unnecessarily linked, so that accidents are easily caused, and therefore the switching-on driving device and the switching-on system for the miniature circuit breaker are provided.

Disclosure of Invention

In view of the problems in the prior art, the invention provides a switching-on driving device for a miniature circuit breaker, wherein a driving miniature circuit breaker is linked with driven miniature circuit breakers through a switching-on and switching-off unit so as to drive all or part of the driven miniature circuit breakers to be linked, and automatic switching-on and switching-off are realized.

In order to achieve the above object, the present invention provides a closing driving apparatus for a miniature circuit breaker, including:

the driving miniature circuit breaker is linked with the driven miniature circuit breakers through an assembly rod so as to realize switching-on and switching-off of the driven miniature circuit breakers;

the driving miniature circuit breaker and the driven miniature circuit breaker are respectively provided with a first handle and a second handle for controlling switching on and switching off, the first handle is provided with a turning axis, the driving miniature circuit breaker enters a switching-on state after being turned upwards along the turning axis, the driving miniature circuit breaker enters a switching-off state after being turned downwards, the second handle is also provided with a turning axis, the driven miniature circuit breaker enters a switching-on state after being turned upwards along the turning axis, and the driven miniature circuit breaker enters a switching-off state after being turned downwards;

the assembly rod is detachably connected with the first handle and the second handles through the independent opening and closing units respectively, after the first handle and all the second handles are connected with the assembly rod, the first handle is turned upwards and downwards along the turning axis to drive all the second handles to be turned together, so that the active miniature circuit breakers and all the driven miniature circuit breakers keep synchronous opening and closing, and after the first handle and part of the second handles are connected with the assembly rod, the first handle is turned upwards and downwards along the turning axis to drive part of the second handles to be turned together, so that the active miniature circuit breakers and part of the driven miniature circuit breakers keep synchronous opening and closing.

As a further optimization of the above scheme, the external dimensions of the driving miniature circuit breaker and the driven miniature circuit breaker are kept consistent.

As a further optimization of the scheme, the assembly rod is in a horizontally long extending shape, a plurality of grooves are formed in the positions, corresponding to the first handle and the second handle, of one side of the assembly rod, a channel which is through horizontally long is formed in the assembly rod, and a plurality of notches are formed in one side of the channel in a penetrating mode to be communicated with the grooves one by one.

As a further optimization of the above aspect, the separation and combination unit includes: the first contact piece and the second contact piece are movably arranged in the channel.

As a further optimization of the above scheme, the first insertion tongue moves horizontally in the groove, the end portions of the first handle and the second handle are both provided with a socket corresponding to the first insertion tongue, and when the first insertion tongue moves horizontally towards the socket, the end portion of the first insertion tongue is inserted into the socket;

the first contact piece and the second contact piece are mutually attached, and the first contact piece and the second contact piece move vertically in the channel.

As a further optimization of the scheme, two sides of the first inserting tongue are fixedly connected with sliding blocks respectively, the sliding blocks are embedded in sliding grooves on the inner sides of the grooves, and the sliding grooves and the grooves extend in the same direction;

the upper end of the first contact piece is provided with an upper curved surface part, the top surface of the channel is provided with a first notch corresponding to the upper curved surface part, the lower end of the second contact piece is provided with a lower curved surface part, and the bottom surface of the channel is provided with a second notch corresponding to the lower curved surface part;

one side of the upper curved surface part is fixedly connected with a first protruding foot, one side of the lower curved surface part is fixedly connected with a second protruding foot, the middle parts of the other sides of the upper curved surface part and the lower curved surface part are respectively provided with a first bayonet and a second bayonet, and a clamping groove is formed when the first bayonet and the second bayonet are aligned;

first protruding foot and the protruding foot of second slope in opposite directions, the tip that makes the tip of first protruding foot and the tip of the protruding foot of second are located same vertical line, and connect through compression spring I between the tip of first protruding foot and the tip of the protruding foot of second, under the natural state, compression spring I expands and passes through first protruding foot, the protruding foot of second is with first contact, the second contact is bounced each other, so that the last curved surface portion of first contact upper end inserts in the first breach, the lower curved surface portion of second contact lower extreme inserts in the second breach, and make the dislocation between first bayonet socket and the second bayonet socket.

As a further optimization of the scheme, a compression spring II is arranged in the chute, and in a natural state, the compression spring II expands and horizontally supports the first inserting tongue towards the channel direction through the sliding block, one end of the first inserting tongue towards the channel direction is fixedly connected with a conical block, and the shape of the conical block is matched with that of the clamping groove;

when the first bayonet and the second bayonet are aligned to form a clamping groove, the conical block penetrates through the notch and is inserted into the clamping groove in the channel, and when the first bayonet and the second bayonet are staggered, the conical block is reversely propped back by the first bayonet and the second bayonet, so that the first insertion tongue horizontally moves towards the socket and is inserted into the socket.

As a further optimization of the scheme, hollow grooves with the same area are arranged in the middle of the first contact piece and the second contact piece in a penetrating mode, one sides of the hollow grooves of the first contact piece and the second contact piece are fixedly connected with a first square block and a second square block respectively, and the first square block is located above the second square block.

As a further optimization of the above scheme, the combining and separating unit further includes: a second tongue piece for vertically moving the first contact piece and the second contact piece in opposite directions;

the second insert tongue movably inserts in the passageway to pass the fretwork groove of first contact, second contact in proper order, the second insert tongue is close to one side of first square, second square and is equipped with and supplies its male constant head tank, the constant head tank has inclined plane portion and straight face portion, and when the second insert tongue passed the fretwork groove of first contact, second contact in proper order, first square and second square inserted in the inclined plane portion and extrude first square, second square each other through the inclined plane portion, and slide in to straight face portion.

A closing system, comprising:

a closing driving apparatus for a micro circuit breaker as set forth in any one of the above embodiments;

the power rod is fixedly connected with the outer side of the assembly rod and provided with a push rod, and the pushing end of the pushing rod is L-shaped and is fixedly connected with the second inserting tongue;

the power unit is arranged in the active miniature circuit breaker and comprises a first rotary disc, a second rotary disc, a stirring ring and a motor, wherein the first rotary disc is fixedly connected with a first handle, the second rotary disc is arranged right below the first rotary disc, the motor drives the second rotary disc to rotate circumferentially;

and a clamping hole is formed in the outer side of the first rotary disc and is tangent to the rotation axis.

The invention discloses a switching-on driving device and a switching-on system for a miniature circuit breaker, which have the following beneficial effects:

according to the switching-on driving device and the switching-on system for the miniature circuit breaker, the arranged assembly rod and the switching-on and switching-off unit are arranged on the outer side of the active miniature circuit breaker, so that the mounting and the use are convenient; and the first handle of the driving miniature circuit breaker drives the second handle of the driven miniature circuit breaker through the assembly rod provided with the switching-on and switching-off units, so that the driving miniature circuit breaker is linked with all the driven miniature circuit breakers in quantity, and each switching-on and switching-off unit is touched through the second plug tongue to release the connection between the touched driven miniature circuit breaker and the assembly rod, so that the driving miniature circuit breaker is linked with part of the driven miniature circuit breakers in quantity, automatic switching-on and switching-off are realized, manual operation is not needed, and unnecessary linkage cannot be generated.

There have been disclosed in detail certain embodiments of the invention with reference to the following description and drawings, and it is to be understood that the embodiments of the invention are not limited thereby, but are intended to cover within the spirit and scope of the appended claims, many changes, modifications, and equivalents.

Drawings

Fig. 1 is a schematic structural view of a driving miniature circuit breaker and a driven miniature circuit breaker of the present invention;

FIG. 2 is a schematic diagram of the active miniature circuit breaker, the passive miniature circuit breaker, and the assembly bar of the present invention;

FIG. 3 is a schematic diagram of the structure of the driving miniature circuit breaker, the driven miniature circuit breaker, the assembly rod and the power rod of the present invention;

FIG. 4 is a rear view of a second tongue construction of the present invention;

FIG. 5 is a schematic diagram of the active miniature circuit breaker, the passive miniature circuit breaker, the assembly bar, and the power bar of the present invention when connected in a configuration;

FIG. 6 is a cross-sectional view of the connection structure of the clutch unit and the first handle according to the present invention;

FIG. 7 is a schematic view of the first and second contacts of the present invention in a misaligned configuration;

fig. 8 is a schematic view of the first and second contacts of the present invention in alignment;

fig. 9 is a schematic cross-sectional view of an active micro circuit breaker according to the present invention;

FIG. 10 is a schematic view of the connection of the power unit and the first handle of the present invention.

In the figure: the miniature circuit breaker comprises an active miniature circuit breaker 1, a driven miniature circuit breaker 2, an assembly rod 3, a first handle 4, a second handle 5, a groove 6, a first plug tongue 7, a first contact piece 8, a second contact piece 9, a socket 10, a sliding block 11, an upper curved surface part 12, a lower curved surface part 13, a first protruding foot 14, a second protruding foot 15, a first bayonet 16, a second bayonet I17, a clamping groove 18, a compression spring I19, a hollow groove 20, a positioning groove 21, an inclined surface part 22, a straight surface part 23, a first square 24, a second square 25, a power rod 26, a first rotating disc 27, a second rotating disc 28, a toggle ring 29, a motor 30, a clamping hole 31, a channel 32 and a second plug tongue 33.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

It should be noted that when an element is referred to as being "disposed on," or provided with "another element, it can be directly on the other element or intervening elements may also be present, when an element is referred to as being" connected, "or connected" to another element, it can be directly connected or intervening elements may be present, and the terms "fixedly connected" and "fixedly connected" are used in a variety of ways, not intended to be limiting herein, and the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items;

referring to the accompanying drawings of the specification 1-10, the present invention provides a technical solution, a switching driving device for a miniature circuit breaker, comprising:

as shown in fig. 1 and 2, the driving micro breaker 1 and the plurality of driven micro breakers 2 are provided, and the driving micro breaker 1 is linked with the plurality of driven micro breakers 2 through an assembly rod 3 to realize the switching on and off of the plurality of driven micro breakers;

the driving miniature circuit breaker 1 and the driven miniature circuit breaker 2 are respectively provided with a first handle 4 and a second handle 5 for controlling switching on and off, the first handle 4 is provided with a turning axis, the driving miniature circuit breaker 1 enters a switching-on state after being turned upwards along the turning axis, the driving miniature circuit breaker 2 enters a switching-off state after being turned downwards, the second handle 5 is also provided with a turning axis, the driven miniature circuit breaker 2 enters a switching-on state after being turned upwards along the turning axis, and the driven miniature circuit breaker 2 enters a switching-off state after being turned downwards;

the assembly rod 3 is respectively detachably connected with the first handle 4 and the second handle 5 through a plurality of independent opening and closing units, after the first handle 4 and all the second handles 5 are connected with the assembly rod 3, the first handle 4 is turned upwards and downwards along the turning axis to drive all the second handles 5 to turn together, so that the active miniature circuit breakers 1 and all the driven miniature circuit breakers 2 keep synchronous opening and closing, and after the first handle 4 and part of the second handles 5 are connected with the assembly rod 3, the first handle 4 is turned upwards and downwards along the turning axis to drive part of the second handles 5 to turn together, so that the active miniature circuit breakers 1 and part of the driven miniature circuit breakers 2 keep synchronous opening and closing.

Preferably, the external dimensions of the driving miniature circuit breaker 1 and the driven miniature circuit breaker 2 are kept consistent;

specifically, assembly pole 3 is the horizontal length and extends the form, and the position that one side of assembly pole 3 corresponds first handle 4, second handle 5 is equipped with a plurality of recesses 6, and is equipped with the passageway 32 that the horizontal length link up in the assembly pole 3, and one side of passageway 32 is run through and is had a plurality of breachs in order to communicate one by one with a plurality of recesses 6.

The dividing and combining unit includes: the first inserting tongue 7 is movably arranged in the groove 6, and the first contact blade 8 and the second contact blade 9 are movably arranged in the channel 32, the first inserting tongue 7 moves horizontally in the groove 6, the end parts of the first handle 4 and the second handle 5 are both provided with a socket 10 corresponding to the first inserting tongue 7, and when the first inserting tongue 7 moves horizontally towards the socket 10, the end part of the first inserting tongue 7 is inserted into the socket 10;

the first contact piece 8 and the second contact piece 9 are attached to each other, and the first contact piece 8 and the second contact piece 9 move vertically in the passage 32.

As shown in fig. 6, considering the stability of the horizontal movement of the first tongue 7, two sides of the first tongue 7 are respectively fixedly connected with a sliding block 11, the sliding blocks 11 are embedded in sliding grooves on the inner sides of the grooves 6, and the sliding grooves extend in the same direction as the grooves 6;

as shown in fig. 7 and 8, the upper end of the first contact piece 8 is provided with an upper curved surface portion 12, the top surface of the passage 32 is provided with a first notch corresponding to the upper curved surface portion 12, the lower end of the second contact piece 9 is provided with a lower curved surface portion 13, and the bottom surface of the passage 32 is provided with a second notch corresponding to the lower curved surface portion 13; a first protruding leg 14 is fixedly connected to one side of the upper curved surface portion 12, a second protruding leg 15 is fixedly connected to one side of the lower curved surface portion 13, a first bayonet 16 and a second bayonet 17 are respectively arranged in the middle of the other sides of the upper curved surface portion 12 and the lower curved surface portion 13, and a clamping groove 18 is formed when the first bayonet 16 and the second bayonet 17 are aligned;

first protruding foot and the protruding foot of second slope in opposite directions, make the tip of first protruding foot and the tip of the protruding foot of second be located same vertical line, and connect through compression spring I19 between the tip of first protruding foot and the tip of the protruding foot of second, under the natural state, compression spring I19 expands and passes through first protruding foot, the protruding foot of second is with first contact 8, second contact 9 bullet open each other, so that the last curved surface portion 12 of 8 upper ends of first contact inserts in the first breach, lower curved surface portion 13 of 9 lower extremes of second contact inserts in the second breach, and make the dislocation between first bayonet socket 16 and the second bayonet socket 17.

A compression spring II is arranged in the chute (not shown), and in a natural state, the compression spring II expands and horizontally supports the first inserting tongue 7 towards the channel 32 through the sliding block 11, one end of the first inserting tongue 7 towards the channel 32 is fixedly connected with a conical block, and the shape of the conical block is matched with that of the clamping groove 18;

when the first bayonet 16 and the second bayonet 17 are aligned to form the clamping groove 18, the tapered block passes through the notch and is inserted into the clamping groove 18 in the channel 32, and when the first bayonet 16 and the second bayonet 17 are staggered, the tapered block is reversely propped back by the first bayonet 16 and the second bayonet 17, so that the first plug tongue 7 horizontally moves towards the socket 10 and is inserted into the socket.

In the embodiment, the middle parts of the first contact piece 8 and the second contact piece 9 are provided with hollow grooves 20 with the same area in a penetrating manner, one sides of the hollow grooves 20 of the first contact piece 8 and the second contact piece 9 are fixedly connected with a first square block 24 and a second square block 25 respectively, and the first square block 24 is positioned above the second square block 25;

as shown in fig. 3, 4, and 5, the opening/closing unit further includes: so that the first contact piece 8, the second contact piece 9 vertically move towards each other the second insertion tongue 33, and pass the hollowed-out groove 20 of the first contact piece 8, the second contact piece 9 sequentially, the second insertion tongue 33 is close to the first square 24, one side of the second square 25 has locating slot 21 for it to insert, the locating slot 21 has inclined plane part 22 and straight surface part 23, and when the second insertion tongue 33 passes the hollowed-out groove 20 of the first contact piece 8, the second contact piece 9 sequentially, the first square 24 and the second square 25 are inserted into the inclined plane part 22 and the first square 24, the second square 25 are pressed each other through the inclined plane part 22, and slide into the straight surface part 23;

an embodiment of the present application further provides a closing system, including: a closing driving apparatus for a micro circuit breaker according to any one of the above embodiments;

the power rod 26, the power rod 26 is fixedly connected with the outer side of the assembly rod 3, the power rod 26 is provided with a push rod, the pushing end of the push rod is L-shaped and is fixedly connected with the second inserting tongue 33, the push rod is a known device in the prior art, can be an electric push rod or a hydraulic push rod, and the using and mounting modes of the push rod are conventional technical means in the field;

the power unit is arranged in the active miniature circuit breaker 1 to serve as a power source for driving the active miniature circuit breaker to be switched on and switched off, and switches the on-off state of the active miniature circuit breaker 1, as shown in fig. 9 and 10, the power unit comprises a first rotary disc 27 fixedly connected with the first handle 4, a second rotary disc 28 arranged right below the first rotary disc 27, a toggle ring 29 and a motor 30 for driving the second rotary disc 28 to rotate circumferentially, the motor 30 is fixedly arranged on the inner wall of the active miniature circuit breaker 1, the output end of the motor 30 is fixedly connected with the middle part of one side of the second rotary disc 28, the outer side of the second rotary disc 28 is rotatably connected with the toggle ring 29 through a support rod, the toggle ring 29 is provided with a rotating axis, the outer side of the first rotary disc 27 is provided with a clamping hole 31, and the clamping hole 31 is tangent to the rotating axis;

in a specific use scenario, as shown in fig. 5, the second tongue 33 is in a state of being partially inserted into the channel 32, that is, the switching unit of the driven micro circuit breaker 2 at the outermost edge is touched, and the switching unit of the other two driven micro circuit breakers 2 is not inserted, so that at this time, that is, the driving micro circuit breaker 1 and the other two driven micro circuit breakers 2 are linked, the driving micro circuit breaker 1 can be linked with the two driven micro circuit breakers 2 through the assembly rod 3, and the specific principle is as follows:

the push rod is started to drive the second plug tongue 33 to be inserted into the channel 32, namely the second plug tongue 33 sequentially passes through the hollow-out grooves 20 of the first contact piece 8 and the second contact piece 9 of the driven miniature circuit breaker 2 at the edge and then stops, because the positioning groove 21 for inserting the second plug tongue 33 is arranged at one side of the second plug tongue 33 close to the first block 24 and the second block 25, the first block 24 and the second block 25 are firstly inserted into the inclined plane part 22 of the positioning groove 21 in the passing process, the maximum width of the inclined plane part 22 is larger than the distance between the first block 24 and the second block 25, and the width of the inclined plane part 22 is gradually reduced towards the direction of the straight plane part 23, so that the inclined plane part 22 gradually presses the first block 24 and the second block 25 to enable the first contact piece 8 and the second contact piece 9 to vertically move mutually in the passing process, and then stops after the first contact piece 8 and the second contact piece 9 slide into the straight plane part 23, at this time, the first bayonet 16 and the second bayonet 17 of the first contact piece 8 and the second contact piece 9 are aligned to form a clamping groove 18, at this time, the compression spring ii is expanded and horizontally supports the first inserting tongue 7 towards the channel 32 through the sliding block 11, so that the tapered block at one end of the first inserting tongue 7 passes through the gap and is inserted into the clamping groove 18 in the channel 32, and the other end of the first inserting tongue 7 is separated from the socket 10 on the second handle 5 of the driven miniature circuit breaker 2, namely, the second handle 5 is released from being fixed, so that the driven miniature circuit breaker 2 is not connected with the assembly rod 3, namely, is not linked with the driving miniature circuit breaker 1;

the push rod can be continuously started according to the use requirement, so that the second plug tongue 33 continuously touches the opening and closing unit of the other driven miniature circuit breaker 2, and the same principle is carried out after the second plug tongue 33 touches the opening and closing unit, so that the driven miniature circuit breaker 2 is not connected with the assembly rod 3, namely is not linked with the driving miniature circuit breaker 1;

when the switch is needed, as shown in fig. 9 and 10, the motor 30 is started, the motor 30 drives the first handle 4 to toggle back and forth through the circumferential rotation of the toggle ring 29 to realize the state of switching on and off, and when the first handle 4 toggles back and forth, the first handle is connected with the assembly rod 3 through the switching-on and switching-off unit and drives the assembly rod 3 and the driven miniature circuit breaker 2 connected with the assembly rod 3 to be linked; of course, the specific connection of the first handle 4 to the internal on-off circuit of the miniature circuit breaker is well known in the art and will not be described in excess here.

It should be understood that the present invention is not limited to the particular embodiments described herein, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A closing driving device for a miniature circuit breaker, comprising:

the assembly rod is respectively detachably connected with the first handle and the second handles through a plurality of independent opening and closing units, after the first handle and all the second handles are connected with the assembly rod, the first handle is turned upwards and downwards along the turning axis to drive all the second handles to be turned together, so that the active miniature circuit breakers and all the driven miniature circuit breakers keep synchronous opening and closing, and after the first handle and part of the second handles are connected with the assembly rod, the first handle is turned upwards and downwards along the turning axis to drive part of the second handles to be turned together, so that the active miniature circuit breakers and part of the driven miniature circuit breakers keep synchronous opening and closing;

the assembly pole is horizontal long extension form, and the position that one side of assembly pole corresponds first handle, second handle is equipped with a plurality of recesses, and is equipped with the passageway that horizontal long link up in the assembly pole, one side of passageway is run through have a plurality of breachs in order to communicate one by one with a plurality of recesses, deciliter unit includes: the activity sets up in the recess first tongue, activity set up in the first contact and the second contact of passageway, still include: a second tongue piece for vertically moving the first contact piece and the second contact piece in opposite directions.

2. The closing driving apparatus for a miniature circuit breaker as claimed in claim 1, wherein: the external dimensions of the driving miniature circuit breaker and the driven miniature circuit breaker are kept consistent.

3. The closing driving apparatus for a miniature circuit breaker as claimed in claim 1, wherein: the first inserting tongue moves horizontally in the groove, the end parts of the first handle and the second handle are respectively provided with a socket corresponding to the first inserting tongue, and when the first inserting tongue moves horizontally towards the socket, the end part of the first inserting tongue is inserted into the socket;

4. The closing driving apparatus for a miniature circuit breaker as claimed in claim 1, wherein: the two sides of the first inserting tongue are fixedly connected with sliding blocks respectively, the sliding blocks are embedded in sliding grooves on the inner side of the groove, and the sliding grooves and the groove extend in the same direction;

5. The closing driving device for the miniature circuit breaker as claimed in claim 4, wherein: a compression spring II is arranged in the sliding groove, and in a natural state, the compression spring II expands and horizontally supports the first inserting tongue towards the channel direction through a sliding block, one end of the first inserting tongue towards the channel direction is fixedly connected with a conical block, and the shape of the conical block is matched with that of the clamping groove;

6. The closing driving apparatus for a miniature circuit breaker as claimed in claim 1, wherein: the middle parts of the first contact piece and the second contact piece are provided with hollowed-out grooves with the same area in a penetrating mode, one sides of the hollowed-out grooves of the first contact piece and the second contact piece are fixedly connected with a first square block and a second square block respectively, and the first square block is located above the second square block.

7. The closing driving apparatus for a miniature circuit breaker as claimed in claim 1, wherein: the second insert tongue movably inserts in the passageway to pass the fretwork groove of first contact, second contact in proper order, the second insert tongue is close to one side of first square, second square and is equipped with and supplies its male constant head tank, the constant head tank has inclined plane portion and straight face portion, and when the second insert tongue passed the fretwork groove of first contact, second contact in proper order, first square and second square inserted in the inclined plane portion and extrude first square, second square each other through the inclined plane portion, and slide in to straight face portion.

8. A closing system, its characterized in that: the method comprises the following steps:

the closing driving apparatus for a micro circuit breaker according to any one of claims 1 to 7;