CN206610783U - A kind of feeler lever component and breaker - Google Patents

Abstract

The utility model provides a kind of feeler lever component and breaker, belongs to technical field of electric appliances.The feeler lever component is used for breaker, breaker has housing and trip gear, trip gear is rotatablely connected with housing, housing has the first contact, feeler lever component includes feeler lever part, return unit and sliding part, feeler lever part has the second contact for being used for contacting the first contact, feeler lever part is rotatablely connected with housing around rotational axis line, sliding part is slidably connected to housing and for being linear motion by the convert rotational motion of trip gear, feeler lever part is connected with sliding part by return unit, when sliding part is slided, return unit makes the second contact have the movement tendency closer or far from the first contact.The return unit has restoring force, can play a part of preferably auxiliary reset, and either separating brake still closes a floodgate, and has preferably effect, and whole operation process is time saving and energy saving, convenient and swift.The breaker includes feeler lever component, and it has the repertoire of the feeler lever component.

Description

A kind of feeler lever component and breaker

Technical field

The utility model is related to technical field of electric appliances, in particular to a kind of feeler lever component and breaker.

Background technology

Breaker：Can turn on, carry and disjunction normal circuit under the conditions of electric current, also can be in defined improper circuit Under the conditions of connect, carrying certain time and breaking current a kind of mechanical switch electrical equipment.

Miniature circuit breaker, abbreviation MCB (Micro Circuit Breaker), is during architectural electricity terminal power distribution draws A kind of most popular terminal protection electrical equipment.Single-phase, three-phase short circuit, overload, overvoltage for below 125A etc. are protected, bag Include four kinds of monopole 1P, two pole 2P, three pole 3P, quadrupole 4P etc..

Inventor has found that traditional breaker at least has the following disadvantages under study for action：

Operation inconvenience；

Using effect is poor.

Utility model content

The purpose of this utility model is the provision of a kind of feeler lever component, improves the deficiencies in the prior art, when breaker is needed Close a floodgate or during separating brake, the return unit has restoring force, can play a part of preferably auxiliary reset, either separating brake is still Close a floodgate, have preferably effect, whole operation process is time saving and energy saving, convenient and swift, its quick disjunction can be also made during separating brake, it is overall Using effect is preferable.Its is reasonable in design, and mechanism is compact, and market application potential is huge.

Another object of the present utility model is the provision of a kind of breaker, and it includes feeler lever component mentioned above, its Repertoire with the feeler lever component.

What embodiment of the present utility model was realized in：

Embodiment of the present utility model provides a kind of feeler lever component, and for breaker, breaker has housing and dropout Device, trip gear is rotatablely connected with housing, and housing has the first contact, feeler lever component include feeler lever part, return unit and Sliding part, feeler lever part has the second contact for being used for contacting the first contact, and feeler lever part is rotatablely connected with around rotational axis line Housing, sliding part is slidably connected to housing and for being linear motion, feeler lever part by the convert rotational motion of trip gear It is connected with sliding part by return unit, when sliding part is slided, return unit makes the second contact have closer or far from the first contact Movement tendency.

Specifically, when breaker needs combined floodgate or separating brake, the return unit has restoring force, can play and preferably aid in The effect of reset, either separating brake still close a floodgate, have preferably effect, whole operation process is time saving and energy saving, convenient and swift, point Also its quick disjunction can be made during lock, overall using effect is preferable.Its is reasonable in design, and mechanism is compact, and market application potential is huge.

Optionally, feeler lever component also includes fitting, and fitting is connected with trip gear, and fitting includes first and abutted Portion, feeler lever part includes the second abutting part for being used to abut the first abutting part, and the second abutting portion is touched in rotational axis line and second Between point.

Optionally, feeler lever component also includes slide rail and connector, and slide rail is connected to housing, and sliding part is slidably connected to Slide rail, one end of connector is articulated with sliding part, and the other end of connector is articulated with trip gear, housing, trip gear, connection Part constitutes slider-crank mechanism or slider-rocker mechanism with sliding part.

Optionally, slide rail is located at the side away from the first contact of feeler lever part, and feeler lever part includes first connecting portion, and first connects Socket part and the second abutting part are located at the both sides of rotational axis line respectively, and one end of return unit is connected with sliding part, return unit it is another One end is connected with first connecting portion.

Optionally, slide rail is located at the side close to the first contact of feeler lever part, and feeler lever part includes second connecting portion, and second connects Socket part is with the second abutting portion in the homonymy of rotational axis line, and one end of return unit is connected with sliding part, the other end of return unit It is connected with second connecting portion.

Optionally, feeler lever component also includes slide rail, and slide rail is connected to housing, and sliding part is slidably connected to slide rail, takes off Buckle device has projection, and the side of the respective protrusions of sliding part is provided with sliding part, and trip gear, sliding part and slide rail constitute convex Take turns mechanism.

Optionally, slide rail is located at the side away from the first contact of feeler lever part, and feeler lever part includes first connecting portion, and first connects Socket part and the second abutting portion are in the both sides of rotational axis line, and one end of return unit is connected with first connecting portion, return unit it is another One end is connected with sliding part.

Optionally, slide rail is located at the side close to the first contact of feeler lever part, and feeler lever part includes second connecting portion, and second connects Socket part and the second abutting portion are in the homonymy of rotational axis line, and one end of return unit is connected with second connecting portion, return unit it is another One end is connected with sliding part.

Optionally, the second abutting part relative to the second contact close to rotational axis line.

Embodiment of the present utility model additionally provides a kind of breaker, and it includes feeler lever component mentioned above, and it has The repertoire of the feeler lever component.

Compared with prior art, the beneficial effect of the utility model embodiment is：

In summary, when breaker needs combined floodgate or separating brake, the return unit has restoring force, can play preferably auxiliary The effect of reset is helped, either separating brake still closes a floodgate, there is preferably effect, whole operation process is time saving and energy saving, convenient and swift, Also its quick disjunction can be made during separating brake, overall using effect is preferable.Its is reasonable in design, and mechanism is compact, and market application potential is huge.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the schematic diagram under the first visual angle of the breaker that the utility model embodiment 1 is provided；

Fig. 2 is the schematic diagram under the second visual angle of the breaker that the utility model embodiment 1 is provided；

Fig. 3 is the schematic diagram of the feeler lever part shown in Fig. 1；

Fig. 4 is the schematic diagram of the first feeler lever component shown in Fig. 1；

Fig. 5 is the schematic diagram for second of feeler lever component that the utility model embodiment 2 is provided；

Fig. 6 is the schematic diagram for the third feeler lever component that the utility model embodiment 3 is provided；

Fig. 7 is the schematic diagram under the first state for the breaker that the utility model embodiment 5 is provided；

Fig. 8 is the schematic diagram under the second state of the breaker that the utility model embodiment 5 is provided；

Fig. 9 is the schematic diagram under the third state for the breaker that the utility model embodiment 5 is provided.

Icon：100- breakers；101- housings；10- spanners；20- driving members；30- trip gears；31- bodies；32- takes off Fastener；33- fine motion parts；The rotating shafts of 310- second；311- is raised；40- feeler lever components；41- feeler lever parts；42- fittings；43- resets Part；44- sliding parts；45- slide rails；46- connectors；The contacts of 410- second；411- first rotating shafts；412- first connecting portions；413- Second connecting portion；The abutting parts of 414- second；415- extensions；416- clamping parts；417- contacts；440- sliding parts；421- first Abutting part；The contacts of 50- first；60- sensors；70- electromagnetic mechanisms.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.

, it is necessary to explanation in description of the present utility model, the orientation of the instruction such as term " on ", " under ", "left", "right" Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.

In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

Embodiment 1

Fig. 1 and Fig. 2 are refer to, a kind of feeler lever component 40 is present embodiments provided, for breaker 100, breaker 100 has There are housing 101 and trip gear 30, trip gear 30 is rotatablely connected with housing 101, and housing 101 has the first contact 50, Feeler lever component 40 includes feeler lever part 41, return unit 43 and sliding part 44, and feeler lever part 41, which has, to be used to contact the of the first contact 50 Two contacts 410, feeler lever part 41 is rotatablely connected with housing 101 around rotational axis line, and sliding part 44 is slidably connected to shell Body 101 and for being linear motion by the convert rotational motion of trip gear 30, feeler lever part 41 and sliding part 44 pass through return unit 43 connections, when sliding part 44 is slided, return unit 43 makes the second contact 410 that there is the motion closer or far from the first contact 50 to become Gesture.

The return unit 43 includes spring, elastic drag rope, shell fragment or other elastic constructions.

The structure of breaker 100 may be referred to Fig. 1 and Fig. 2, and breaker 100 includes spanner 10, driving member 20, trip gear 30th, feeler lever component 40, sensor 60, electromagnetic mechanism 70.

Trip gear 30 includes body 31, dropout part 32 and fine motion part 33.Pass through driving member between body 31 and spanner 10 20 connections, spanner 10, driving member 20, body 31 and housing 101 constitute four-bar mechanism, when spanner 10 is rotated, and drive driving member 20 so that body 31 is rotated.Dropout part 32 is fixedly connected or is integrally formed with body 31, and fine motion part 33 is rotatablely connected with this During body 31, combined floodgate, fine motion part 33 abuts fastening with dropout part 32 all the time.When needing disjunction, fine motion part 33 comes off, body 31, due to being also associated with back-moving spring between housing 101, in the presence of back-moving spring, realize separating brake.

In order that skilled artisans appreciate that fine motion part 33 is hidden in the present embodiment, Fig. 2.

Specific principle is that after spanner 10 closes a floodgate, the first contact 50 contacts and electrically connected, fine motion with the second contact 410 Part 33 abuts electromagnetic mechanism 70, and the detection of sensor 60 is by electric current, when reaching that electromagnetic mechanism 70 promotes fine motion part when needing disjunction 33, fine motion part 33 is departed from relative to dropout part 32, spanner 10 resets, the first contact 50 and the second contact 410 are remote, realize and divide Disconnected function.

Specifically, when breaker 100 needs combined floodgate or separating brake, the return unit 43 has restoring force, can play preferably Auxiliary reset effect, either separating brake still close a floodgate, have preferably effect, whole operation process is time saving and energy saving, it is convenient Fast, its quick disjunction can be also made during separating brake, overall using effect is preferable.Its is reasonable in design, and mechanism is compact, market application potential It is huge.

Fig. 3 is refer to, in order that those skilled in the art are clearer to understand the present embodiment, feeler lever part 41 is carried out below Describe in detail.

First rotating shaft 411 is provided with feeler lever part 41, feeler lever part 41 is realized by first rotating shaft 411 with housing 101 to be turned Dynamic, the rotational axis line of feeler lever part 41 is in the first rotating shaft 411.

Optionally, feeler lever part 41 also includes extension 415, and extension 415 is connected with the second abutting part 414, extension 415 With the second abutting part 414 in obtuse angle.

That is, the extension 415 can help the second contact 410 away from the second abutting part 414.

Optionally, feeler lever part 41 also includes clamping part 416, and clamping part 416 is used to clamp contact 417, the second contact 410 In on contact 417, clamping part 416 is connected with extension 415 and positioned at one end away from the second abutting part 414 of extension 415.

Contact 417 is arranged in clamping part 416, maintenance easy to disassemble etc..

Optionally, clamping part 416 with extension 415 in obtuse angle and contact 417 is located at abutting away from second for clamping part 416 The side in portion 414.

That is, whole feeler lever part 41 is in Z-shaped, it using the design of bending, can realize during combined floodgate, touch First 417 can be directed at the first contact 50, realize effective contact.And during separating brake, contact 417 is not in alignment with first and touched Point 50, its breaking capacity can be greatly improved.

Fig. 4 is refer to, optionally, feeler lever component 40 also includes fitting 42, and fitting 42 is connected with trip gear 30, supported Fitting 42 includes the first abutting part 421, and feeler lever part 41 includes the second abutting part 414 for being used to abut the first abutting part 421, second Abutting part 414 is located between rotational axis line and the second contact 410.

Explanation is needed exist for, the fitting 42 is connected with body 31, can use and be fixedly connected, it would however also be possible to employ turn Dynamic connection, the fitting 42 can also be the part that body 31 extends, that is to say, that the fitting 42 can also be and body 31 are integrally formed.

Body 31 is rotatablely connected with housing 101 around the second rotating shaft 310, and the rotational axis line of the fitting 42 can be In second rotating shaft 310.When body 31 is rotated, the fitting 42 is also rotated.

Optionally, feeler lever component 40 also includes slide rail 45 and connector 46, and slide rail 45 is connected to housing 101, sliding part 44 Slide rail 45 slidably is connected to, one end of connector 46 is articulated with sliding part 44, and the other end of connector 46 is articulated with dropout Device 30, housing 101, trip gear 30, connector 46 constitute slider-crank mechanism or slider-rocker mechanism with sliding part 44.

Optionally, slide rail 45 is located at the side away from the first contact 50 of feeler lever part 41, and feeler lever part 41 includes the first connection Portion 412, the abutting part 414 of first connecting portion 412 and second is located at the both sides of rotational axis line, one end of return unit 43 and cunning respectively Moving part 44 is connected, and the other end of return unit 43 is connected with first connecting portion 412.

In mechanical field, the mode by the convert rotational motion of object for linear motion has a lot, in the present embodiment Using slider-crank mechanism or slider-rocker mechanism.

It is described with the relative position in Fig. 4, in the making process of breaker 100, body 31 is rotated clockwise, drives connection Part 46 is moved, and promotes sliding part 44 to be slided on slide rail 45, and fitting 42 is rotated clockwise, and sliding part 44 is turned right motion, drawing Dynamic return unit 43, makes first connecting portion 412 be rotated relative to first rotating shaft 411, positioned at the second contact of the other end of feeler lever part 41 410 relatively rotate and close to the first contact 50.

Need exist for explaining, in making process, the first abutting part 421 can abut shape with the second abutting part 414 It is state or released state.When pulling spanner 10, in the presence of connector 46, sliding part 44 and return unit 43, energy Enough realize that the effect that the second contact 410 is contacted with the first contact 50 is preferable.

During the separating brake of breaker 100, body 31 is rotated counterclockwise, and band follower link 46 is moved, and drives sliding part 44 To left movement on slide rail 45, by compressing return unit 43, return unit 43 is set to drive first connecting portion 412 to rotate, and make second Contact 410 is away from the first contact 50.In the process, fitting 42 can also be rotated counterclockwise, and promote 414 turns of the second abutting part It is dynamic.By the cooperative job of both fitting 42 and return unit 43, integral reset effect is not in the phenomenon of interim card preferably, Its disjunction effect is preferable.

Because the return unit 43 has certain elasticity, there is restoring force in it, during separating brake and combined floodgate, time saving province Power.Overall using effect is preferable.

Optionally, the second abutting part 414 relative to the second contact 410 close to rotational axis line.

By lever principle, when the second abutting part 414 is relative to close to first rotating shaft 411, fitting 42 rotates smaller Scope, one end away from first rotating shaft 411 on feeler lever part 41 can be made to rotate larger scope.That is, it is possible to achieve There is larger disjunction spacing between first contact 50 and the second contact 410.Only have relative to disjunction spacing of the prior art 5mm, the feeler lever component 40 can realize the disjunction spacing ＞ 20mm between the first contact 50 and the second contact 410.The mechanism is kept away Exempt from the generation of electric arc, or the electric arc produced is extinguished immediately, substantially increase its breaking capacity.Overall using effect compared with It is good.

According to a kind of feeler lever component 40 of the utility model embodiment offer, the operation principle of feeler lever component 40 is：

Feeler lever part 41 is individually connected with housing 101, is acted on by the linkage of fitting 42, realizes that feeler lever part 41 is close or remote From the first contact 50, according to lever principle, the second abutting part 414 is close to first rotating shaft 411, when fitting 42 rotates smaller range When, the second contact 410 can rotate larger scope relative to first rotating shaft 411.

This point can also be learnt from circular arc calculation formula：L=α (radian) × r (radius).When fitting 42 is relative to shell When body 101 turns an angle, feeler lever part 41 can also rotate corresponding angle in the presence of fitting 42, due to second touch Point 410 increases away from first rotating shaft 411, i.e. radius, in the case where rotating equal angular, the increase of its circular arc arc length turned over. Considerably increase the spacing between two contacts after separating brake.Improve its breaking capacity.

Embodiment 2

Fig. 5 is refer to, the present embodiment also provides a kind of feeler lever component 40, and the technical scheme that embodiment 1 is described equally is fitted For the present embodiment, description is not repeated in the published technical scheme of embodiment 1.

Specifically, the present embodiment and the difference of embodiment 1 are, slide rail 45 is located at close first contact 50 of feeler lever part 41 Side, feeler lever part 41 includes second connecting portion 413, and the abutting part 414 of second connecting portion 413 and second is positioned at rotational axis line Homonymy, one end of return unit 43 is connected with sliding part 44, and the other end of return unit 43 is connected with second connecting portion 413.

According to a kind of feeler lever component 40 of the utility model embodiment offer, the operation principle of feeler lever component 40 is：

During combined floodgate, body 31 is rotated clockwise, and band follower link 46 is moved, and makes sliding part 44 is past on slide rail 45 to move to left Dynamic, sliding part 44 pulls return unit 43, second connecting portion 413 is rotated relative to first rotating shaft 411, finally makes the second contact 410 close to the first contact 50.

During separating brake, body 31 is rotated counterclockwise, and band follower link 46 is moved, and makes sliding part 44 is past on slide rail 45 to move to right Dynamic, the compression return unit 43 of sliding part 44 makes second connecting portion 413 be rotated relative to first rotating shaft 411, finally realizes disjunction.

Embodiment 3

Fig. 6 is refer to, the present embodiment also provides a kind of feeler lever component 40, and the technical scheme that embodiment 1 is described equally is fitted For the present embodiment, description is not repeated in the published technical scheme of embodiment 1.

Specifically, the present embodiment and the difference of embodiment 1 are, feeler lever component 40 also includes slide rail 45, and slide rail 45 is connected In housing 101, sliding part 44 is slidably connected to slide rail 45, and trip gear 30 has projection 311, and the correspondence of sliding part 44 is convex The side for playing 311 is provided with sliding part 440, and trip gear 30, sliding part 44 constitute cam mechanism with slide rail 45.

Optionally, slide rail 45 is located at the side away from the first contact 50 of feeler lever part 41, and feeler lever part 41 includes the first connection Portion 412, the abutting part 414 of first connecting portion 412 and second is located at the both sides of rotational axis line, and one end of return unit 43 connects with first Socket part 412 is connected, and the other end of return unit 43 is connected with sliding part 44.

In mechanical field, the mode by the convert rotational motion of object for linear motion has a lot, in the present embodiment Using cam mechanism.

It is roughly the same that the operation principle of feeler lever component 40 in the present embodiment and above-described embodiment are mentioned.Here just no longer It is excessive to introduce.

Mentioned above is to drive sliding part 44 by connector 46, and the present embodiment promotes sliding part using the structure of cam 44 movements.

Explanation is needed exist for, projection 311 can be fixedly connected or be integrally formed with body 31, may be used also To be single cam structure, the cam structure is fixedly connected and rotated coaxially with body 31.

Embodiment 4

The present embodiment also provides a kind of feeler lever component 40, and the technical scheme that embodiment 3 is described is equally applicable to this implementation Description is not repeated in example, the published technical scheme of embodiment 3.

Specifically, the present embodiment and the difference of embodiment 3 are, slide rail 45 is located at close first contact 50 of feeler lever part 41 Side, feeler lever part 41 includes second connecting portion 413, and the abutting part 414 of second connecting portion 413 and second is positioned at rotational axis line Homonymy, one end of return unit 43 is connected with second connecting portion 413, and the other end of return unit 43 is connected with sliding part 44.

Feeler lever component 40 in the present embodiment is identical with the principle of the feeler lever component 40 in embodiment 3, with relative in Fig. 6 Position is described, and the slide rail 45 in embodiment 3 is located at the right side of feeler lever part 41, and slide rail 45 is arranged at feeler lever part 41 by the present embodiment Left side, it is the same can to realize identical effect.

Embodiment 5

The present embodiment also provides a kind of breaker 100, and it includes feeler lever component 40 mentioned above, feeler lever component 40 Structure may be referred to embodiment 1-4, and the breaker 100 has the institute of feeler lever component 40 functional.

It is the state that breaker 100 prepares to close a floodgate shown in Fig. 7, in being the making process of breaker 100 shown in Fig. 8 State, be that breaker 100 closes a floodgate the state after terminating shown in Fig. 9.

Entirely the course of work of breaker 100 is：

Making process, rotating spanner 10, under the drive of driving member 20, body 31 is rotated, the fitting 42 on body 31 Rotated with fine motion part 33, at this moment, feeler lever part 41 is rotated immediately so that the second contact 410 is close to the first contact 50, when the second contact During 410 the first contact 50 of contact, fine motion part 33 and not in contact with electromagnetic mechanism 70；Spanner 10 is rotated further, and contacts fine motion part 33 Electromagnetic mechanism 70.

Separating brake process, sensor 60 detects that electric current is excessive, it is necessary to which during disjunction, electromagnetic mechanism 70 promotes 33 turns of fine motion part Dynamic, fine motion part 33 comes off relative to dropout part 32, and spanner 10, body 31 reset, and feeler lever part 41 is away from the first contact 50.

Due to the special structure of the feeler lever part 41, along with the effect of being linked of feeler lever part 41 and fitting 42 so that Two contact spacings after disjunction are larger, and contact 417 is not towards the first contact 50.Substantially increase point of breaker 100 Cutting capacity.Overall using effect is preferable.

In summary, the utility model provides a kind of feeler lever component 40, when breaker 100 needs combined floodgate or separating brake, The return unit 43 has restoring force, can play a part of preferably auxiliary reset, either separating brake still closes a floodgate, and has preferably Effect, whole operation process is time saving and energy saving, convenient and swift, its quick disjunction can be also made during separating brake, overall using effect is preferable. Its is reasonable in design, and mechanism is compact, and market application potential is huge.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of feeler lever component, for breaker, breaker has housing and trip gear, and trip gear is rotatablely connected with Housing, housing has the first contact, it is characterised in that the feeler lever component includes feeler lever part, return unit and sliding part, described to touch Rod member has the second contact for being used for contacting the first contact, and the feeler lever part is rotatablely connected with housing around rotational axis line, The sliding part is slidably connected to housing and for being linear motion, the feeler lever by the convert rotational motion of trip gear Part is connected with the sliding part by the return unit, when the sliding part is slided, and the return unit makes second contact have There is the movement tendency closer or far from the first contact.

2. feeler lever component according to claim 1, it is characterised in that the feeler lever component also includes fitting, described to support Fitting is connected with trip gear, and the fitting includes the first abutting part, and the feeler lever part includes supporting for abutting described first Second abutting part of socket part, second abutting portion is between the rotational axis line and second contact.

3. feeler lever component according to claim 2, it is characterised in that the feeler lever component also includes slide rail and connector, The slide rail is connected to housing, and the sliding part is slidably connected to the slide rail, and one end of the connector is articulated with institute Sliding part is stated, the other end of the connector is articulated with trip gear, and housing, trip gear, the connector are slided with described Part constitutes slider-crank mechanism or slider-rocker mechanism.

4. feeler lever component according to claim 3, it is characterised in that the slide rail is located at remote the first of the feeler lever part The side of contact, the feeler lever part includes first connecting portion, and the first connecting portion is located at institute respectively with second abutting part State the both sides of rotational axis line, one end of the return unit is connected with the sliding part, the other end of the return unit with it is described First connecting portion is connected.

5. feeler lever component according to claim 3, it is characterised in that the slide rail is located at close the first of the feeler lever part The side of contact, the feeler lever part includes second connecting portion, and the second connecting portion is with second abutting portion in described turn The homonymy of dynamic axial line, one end of the return unit is connected with the sliding part, the other end of the return unit and described second Connecting portion is connected.

6. feeler lever component according to claim 2, it is characterised in that the feeler lever component also includes slide rail, the slide rail Housing is connected to, the sliding part is slidably connected to the slide rail, and trip gear has projection, the correspondence of the sliding part Raised side is provided with sliding part, and trip gear, the sliding part constitute cam mechanism with the slide rail.

7. feeler lever component according to claim 6, it is characterised in that the slide rail is located at remote the first of the feeler lever part The side of contact, the feeler lever part includes first connecting portion, and the first connecting portion is with second abutting portion in described turn The both sides of dynamic axial line, one end of the return unit is connected with the first connecting portion, the other end of the return unit with it is described Sliding part is connected.

8. feeler lever component according to claim 6, it is characterised in that the slide rail is located at close the first of the feeler lever part The side of contact, the feeler lever part includes second connecting portion, and the second connecting portion is with second abutting portion in described turn The homonymy of dynamic axial line, one end of the return unit is connected with the second connecting portion, the other end of the return unit with it is described Sliding part is connected.

9. the feeler lever component according to claim any one of 2-8, it is characterised in that second abutting part is relative to described Second contact is close to the rotational axis line.

10. a kind of breaker, it is characterised in that including the feeler lever component described in claim any one of 1-9.