CN208873692U - A kind of leakage tripping device of breaker - Google Patents

Abstract

A kind of leakage tripping device of breaker, it is characterised in that: leakage tripping device further includes an indicating arm, and indicating arm has electric leakage reset position and electric leakage operating position；When indicating arm is in electric leakage reset position, upright projection forms the first subpoint on the capping of the lid of breaker, when indicating arm is in electric leakage operating position, upright projection forms the second subpoint on the capping of the lid of breaker, and there are distances between first subpoint and the second subpoint；Indicating arm is corresponded on the lid of breaker and offers opening or form, keeps the transition status of the electric leakage reset position of indicating arm and the operating position that leaks electricity externally visible through the opening or form；When magnetic flow convertor is in electric leakage reset state, indicating arm is in electric leakage reset position；When magnetic flow convertor movement, magnetic flow convertor drives circuit breaker tripping, and the indicating arm is driven to slide into electric leakage operating position simultaneously.The utility model has the function of clearly electric leakage movement instruction, and structure is simple, small in size.

Description

A kind of leakage tripping device of breaker

Technical field

The utility model relates to breakers, and in particular to a kind of leakage tripping device of breaker.

Background technique

When breaker works, when leak current fault occurs in circuit, breaker electric leakage unit detection is simultaneously sent out to leakage tripping device Action command out, leakage tripping device movement make circuit breaker trip, reach quick disjunction circuit to reach protection circuit and equipment Purpose.

Usually said leakage circuit breakers also has electric leakage instruction function and warning function of electric leakage.

Usually said electric leakage instruction function, which refers to, can indicate the leakage condition of breaker at breaker scene: electric leakage is dynamic Make or resets.Instruction function usually combines with electric leakage movement buckle releaser, acts with electric leakage movement buckle releaser to breaker Positive direction pop-up.Instruction structure direction of action is vertical with buckle releaser direction of action, and movement transferring structure is complicated, low efficiency, at This height；Meanwhile the usually perpendicular dress of breaker or horizontal dress, in face of breaker front when observation, and instruction structure right-side-out when acting Pop-up, front see that mechanism is not obviously displaced, and identification is not high, cannot clearly feed back the leakage condition of breaker.

Usually said warning function of electric leakage refers in the leakage condition that can indicate breaker far from breaker scene.Leakage Electric alarm function receives the status signal of electric leakage unit and by external usually as breaker side is hung over outside an accessory module Terminal is converted into the on-off between terminal to distinct feed-back leakage condition.Electronic component is more, at high cost；It is wide to increase breaker Degree, occupied space are big.

Summary of the invention

The utility model is to provide a kind of leakage tripping device of breaker, in combination with electric leakage instruction function and alarm function Can, structure is simple, and it is small in size, product competitiveness can be greatly promoted.

In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of leakage tripping device of breaker, described Breaker includes an insulation shell, which includes lid and pedestal；The leakage tripping device is set in the pedestal, leakage Electric buckle releaser includes a pedestal and a magnetic flow convertor；The magnetic flow convertor is mounted in pedestal, for driving breaker Execute trip action；

The leakage tripping device further includes an indicating arm, which moves with respect to the insulation shell of breaker, make to indicate Bar has electric leakage reset position and electric leakage operating position；When the indicating arm is in electric leakage reset position, in the lid of breaker Upright projection forms the first subpoint on capping, when the indicating arm is in electric leakage operating position, in the capping of the lid of breaker Upper upright projection forms the second subpoint, and there are distances between first subpoint and the second subpoint；

Indicating arm is corresponded on the lid of the breaker and offers opening or form, makes electric leakage reset position and the leakage of indicating arm The transition status of electric operating position is externally visible through the opening or form；Correspond to the leakage of indicating arm in the opening or form Reset position and electric leakage operating position are equipped with mark；Alternatively, described cover the leakage for corresponding to indicating arm by opening or form Reset position and electric leakage operating position are equipped with mark；

When the magnetic flow convertor is in electric leakage reset state, the indicating arm is in electric leakage reset position；When described When magnetic flow convertor acts, magnetic flow convertor drives circuit breaker tripping at this time, and the indicating arm is driven to slide into electric leakage simultaneously Operating position.

Scheme in view of the above technology is explained further and is described as follows:

1, in above scheme, the indicating arm is slidably connected with respect to the capping of the lid of breaker, glide direction and open circuit The capping of the lid of device is parallel.

2, in above scheme, the magnetic flow convertor includes a tripping push rod, bracket and the electricity being fixed on bracket It magnetic mechanism and is hinged on bracket and the lock snap-fitted with tripping push rod；The tripping push rod is in one end of length direction Push rod equipped with the lever mated with breaker and the tripping face with the draw bar cooperation of breaker, and in the another of its length direction One end is equipped with the release link cooperated with the dynamic iron core of electromagnetic mechanism, is additionally provided with the linkage portion connecting with indicating arm on tripping push rod With the hasp portion with snap fit and for providing the trip spring of tripping force；When the magnetic flow convertor is in electric leakage movement When state, the hasp portion of the tripping push rod and lock are unlocked, and tripping push rod moves under the tripping force effect of trip spring, are taken off The tripping face of button push rod contacts with the draw bar of breaker and pushes its unlock, causes circuit breaker tripping, while push rod of threading off Release link pushes the dynamic iron core of electromagnetic mechanism to reset, and the linkage portion for push rod of threading off drives the indicating arm to slide into electric leakage act bit It sets；When breaker is detained again, the lever of breaker contacts with the push rod of tripping push rod and withstands the lower promotion of trip spring effect Tripping push rod reset movement makes its lock hasp, while trip spring elongation energy storage again with magnetic flow convertor, push rod of threading off Tripping face and the draw bar of breaker be detached from, so that breaker is returned to on-state, and the linkage portion drive for push rod of threading off refers to Show that bar slides into electric leakage reset position.

3, in above scheme, the leakage tripping device further includes an alarm conversion element, which is set to Indicating arm side, alarm conversion element on towards the side of indicating arm be equipped with push contact, and the indicating arm towards alarm convert The side of element is equipped with the alarm contact surface cooperated with push contact and alarm groove；When indicating arm is in electric leakage reset position When, the alarm of the push contact and indicating arm of the alarm conversion element contacts face contact and is pressed by it, makes alarm conversion member Part is in reset state；When indicating arm is in electric leakage operating position, the push contact for conversion element of alarming falls into the alarm Release in groove makes alarm conversion element be converted to action state.

Further, the leakage tripping device further includes an instruction pedestal, which fixes with respect to the lid of breaker, institute It states and offers instruction sliding slot and alarm chamber on instruction pedestal, indicated bar is mounted in instruction sliding slot, the alarm conversion element It is intracavitary to be mounted on alarm.

4, in above scheme, the lock on bracket, is latched one end and dynamic iron core is inconsistent, separately by lock shaft hub setting One end is equipped with the latch hook portion with the hasp portion cooperation of tripping push rod, the latch hook portion and hasp portion cooperate be configured to engage or The snap-in structure of disengagement.

Further, it is arranged promising lock in the lock shaft, the torsional spring of turning power is provided, which is against on lock, The other end is against on bracket.

5, in above scheme, the trip spring setting is between tripping push rod and bracket, and one end is hung on bracket, separately One end is hung on tripping push rod.

6, in above scheme, the tripping push rod passes through leading arm guide groove installation positioning corresponding with bracket thereon On bracket, and it can be slided along guide groove.

Since the utility model uses above-mentioned technical proposal, have the benefit that the utility model breaker is used Leakage tripping device has the function of clearly electric leakage movement instruction, and structure is simple, small in size.

Detailed description of the invention

Fig. 1 shows the breaker general assembly drawing using the utility model；

Fig. 2 shows the breaker structure schematic diagrames of application the utility model；

Fig. 3 shows the partial structure diagram of the breaker using the utility model；

Fig. 4 shows the structural schematic diagram of the utility model leakage tripping device；

Fig. 5 shows the explosion figure of the utility model leakage tripping device；

Fig. 6 shows the explosion figure of the magnetic flow convertor of the utility model leakage tripping device；

Fig. 7 shows the tripping pusher structure schematic diagram of magnetic flow convertor in the utility model leakage tripping device；

Fig. 8 shows the alarm conversion element structural schematic diagram of the utility model leakage tripping device；

Fig. 9 shows the indicating arm structural schematic diagram one of the utility model leakage tripping device, and instruction is face-up；

Figure 10 shows the indicating arm structural schematic diagram two of the utility model leakage tripping device, indicates face down；

Figure 11 shows the instruction schematic diagram of base structure of the utility model leakage tripping device；

Figure 12 shows the electric leakage reset state schematic diagram of the utility model leakage tripping device；

Figure 13 shows the electric leakage action state schematic diagram of the utility model leakage tripping device.

In the figures above: 100, pedestal；200, it covers；201, opening or form；300, operating mechanism；301, lever；302, Draw bar；1, pedestal；2, magnetic flow convertor；21, bracket；211, guide groove；22, electromagnetic mechanism；221, dynamic iron core；23, it locks Button；231, connecting shaft is latched；232, latch hook portion；233, torsional spring；24, tripping push rod；241, push rod；242, tripping face；243, multiple Position bar；244, linkage portion；245, hasp portion；246, leading arm；25, trip spring；3, pedestal is indicated；31, sliding slot is indicated；32, Alarm chamber；4, indicating arm；4A, electric leakage reset position；4B, electric leakage operating position；41, alarm contact surface；42, alarm groove； 43, connecting groove；44, cue mark；5, alarm conversion element；51, push contact；52, common wire；53, the first conversion is led Line；54, the second conversion conducting wire；6, top cover；61, cavity.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments:

Embodiment: referring to shown in Fig. 1~Figure 13, a kind of leakage tripping device of breaker:

Referring to shown in FIG. 1 to FIG. 2, the breaker is breaker of plastic casing, including an insulation shell, the insulation shell include Pedestal 100 and the lid 200 being set on pedestal 100, pedestal 100 is interior to be equipped with operating mechanism 300, and operating mechanism 300 belongs to public affairs Know technology, therefore only make simple description herein: the operating mechanism 300 includes lever 301, elbow link mechanism, jumps lock Structure and draw bar 302, by lever 301 operation drive elbow link mechanism movement, it can be achieved that breaker connection with point Disconnected operation；When operating mechanism 300 carries out trip operation, unlocked by the jump lock construction for pushing draw bar 302 to make locking, and it is real The tripping of existing operating mechanism 300；Leakage tripping device involved in the present embodiment is provided in the pedestal 100.

It please refers to Fig. 3~Fig. 5 and combines Figure 11, the leakage tripping device includes a pedestal 1 and a magnetic flow convertor 2； The magnetic flow convertor 2 is mounted in pedestal 1, for driving breaker to execute trip action.The leakage tripping device further includes One indicating arm 4, the indicating arm 4 are moved with respect to the insulation shell of breaker, and indicating arm 4 is made to have electric leakage reset position 4A and electric leakage Operating position 4B；When the indicating arm 4 is in electric leakage reset position 4A, the upright projection shape on the capping of the lid 200 of breaker At the first subpoint, when the indicating arm 4 is in electric leakage operating position 4B, upright projection is formed on the capping of the lid of breaker Second subpoint, there are distances between first subpoint and the second subpoint.

When the magnetic flow convertor 2 is in electric leakage reset state, the indicating arm 4 is in electric leakage reset position 4A；When When the magnetic flow convertor 2 acts, magnetic flow convertor 2 drives circuit breaker tripping, and the indicating arm 4 is driven to slide into leakage simultaneously Electric operating position 4B.

It please refers to Fig. 1 and combines Figure 12, Figure 13, correspond to indicating arm 4 on the lid 200 of the breaker and offer opening or view Window 201 makes the transition status of the electric leakage reset position 4A of indicating arm 4 and the operating position 4B that leaks electricity through the opening or form 201 It is externally visible；It is equipped in the opening or form 201 corresponding to the electric leakage reset position 4A of indicating arm 4 and electric leakage operating position 4B Mark；Alternatively, described cover by opening or form corresponding to the electric leakage reset position 4A of indicating arm 4 and electric leakage operating position 4B Equipped with mark.

It please refers to Fig. 3~Fig. 5 and combines Figure 11, the capping sliding translation connection of the lid of the opposite breaker of the indicating arm 4, Specifically, the leakage tripping device further includes an instruction pedestal 3, alarm conversion element 5 and top cover 6, the magnetic flow convertor 3 It is mounted on the lower part in the pedestal 1, magnetic flow convertor 3 is used to drive the operating mechanism 300 of breaker to execute trip action；Refer to Show that the top of magnetic flow convertor 2 is arranged in pedestal 3, instruction pedestal 3 is fixed with respect to pedestal 1, namely the lid 200 of opposite breaker is solid It is fixed, it indicates to offer instruction sliding slot 31 and alarm chamber 32 on pedestal 3, indicated bar 4 is mounted in instruction sliding slot 31, the alarm Conversion element 5 is mounted in alarm chamber 32, on the installation of the top cover 6 instruction pedestal 3, and is matched with the card of pedestal 1, is opened up on top cover 6 Have cavity 61, the cavity 61 on lid 200 opening or form 201 it is corresponding.

Fig. 6~Fig. 7 is please referred to, the magnetic flow convertor 2 includes tripping push rod 24, a bracket 21 and is fixed at bracket Electromagnetic mechanism 22 and the hinged lock 23 snap-fitted on the stent 21 and with tripping push rod 24 on 21.The electromagnetic motor Structure 22 has dynamic iron core 221, and the dynamic iron core 221 and lock 23 stop to connect, and the lock 23 passes through lock connecting shaft 231 hub settings on the stent 21, latch 23 one end and dynamic iron core 221 are inconsistent, and the other end has for overlapping with tripping push rod 24 Latch hook portion 232, be arranged in the lock connecting shaft 231 for providing the torsional spring 233 of turning power, the torsional spring for lock 23 233 one end is against on lock 23, and the other end supports on the stent 21.The tripping push rod 24 by leading arm 246 thereon with The corresponding installation of guide groove 211 positioning of bracket on the stent 21, and can be slided along guide groove 211, the cunning of the tripping push rod 24 Dynamic direction is parallel with the capping of lid 200 of breaker.The tripping push rod 24 is equipped with and breaker in one end of length direction The push rod 241 that lever 301 cooperates and the tripping face 242 with the cooperation of draw bar 302 of breaker, and in the another of its length direction End is equipped with the release link 243 cooperated with the dynamic iron core 221 of electromagnetic mechanism 22, is additionally provided on tripping push rod 24 and connects with indicating arm 4 The linkage portion 244 that connects and the hasp portion 245 cooperated with lock 23 and for providing the trip spring 25 of tripping force.The tripping The setting of spring 25 is between tripping push rod 24 and bracket 21, for providing tripping force when threading off 23 unlock of push rod 24 and lock, One end is hung on the stent 21, and the other end is hung on tripping push rod 24.

It please refers to shown in Fig. 9 and Figure 10, the indicating arm 4 has alarm contact surface 41, alarm groove 42, connecting groove 43 and cue mark 44, the connecting groove 43 engages with the linkage portion 244 of tripping push rod 24, and the indicating arm 4 is made to exist It indicates to slide in the instruction sliding slot 31 of pedestal 3 with the movement of tripping push rod 24, and 44 upper end of cue mark probes into opening or form In 201, the cue mark 44 is directed toward different positions with the sliding of instruction push rod 24, cooperates 200 front of lid of breaker Mark, can clearly indicate breaker electric leakage reset or electric leakage action state.

As shown in figure 8, there is the alarm conversion element 5 push contact 51, common wire 52, first to convert conducting wire 53 With the second conversion conducting wire 54.Push contact 51 is arranged on alarm conversion element 5 towards on the side of indicating arm, and the alarm connects Contacting surface 41, alarm groove 42 correspond to set on indicating arm 4 towards alarm conversion element 5 side on, i.e., push contact 51 with contact Face 41, alarm groove 42 are opposite.

When indicating arm 4 is in electric leakage reset position 4A, the push contact 51 and indicating arm 4 of the alarm conversion element 5 Alarm contact surface 41 contact and pressed by it, the conversion element 5 that makes to alarm be in reset state, and common wire 52 and first converts Conducting wire 53 is connected, and common wire 52 and the second conversion conducting wire 54 disconnect；When indicating arm 4 is in electric leakage operating position 4B, alarm The push contact 51 of conversion element 5 falls into release in the alarm groove 42, and alarm conversion element 5 is made to be converted to action state, Common wire 52 and the first conversion conducting wire 53 disconnect, and common wire 52 connects with the second conversion conducting wire 54.

When leakage tripping device is in electric leakage action state, the hasp portion 245 for push rod 24 of threading off and the latch hook portion of lock 23 232 unlocks, tripping push rod 24 push tripping push rod 24 mobile in the case where the tripping force of trip spring 25 acts on, and tripping push rod 24 takes off Buckle side 242 contacts with the draw bar 302 of breaker and pushes its unlock, causes circuit breaker tripping, while push rod 24 of threading off is answered Position bar 243 pushes the dynamic iron core 221 of electromagnetic mechanism 22 to reset, and the linkage portion 244 of tripping push rod 24 drives 4 synchronous slide of indicating arm To electric leakage operating position 4B, the instruction electric leakage action state of cue mark 44 of the indicating arm 4；When breaker is detained again, break The lever 301 of road device contacts with the push rod 241 of tripping push rod 24 and withstands the lower promotion tripping push rod 24 of the effect of trip spring 25 Mobile, the latch hook portion 232 in the hasp portion 245 and lock that make tripping push rod 24 overlaps, while trip spring 25 elongates energy storage, threads off The tripping face 242 of push rod 24 and the draw bar 302 of breaker are detached from, and magnetic flow convertor 2 is in reset state, tripping push rod 24 Linkage portion 244 drives 4 synchronous slide of indicating arm to electric leakage reset position 4A, and the cue mark 44 of indicating arm 4 indicates that the electric leakage is multiple Position state.

Action process:

Initially, breaker is in (closure) state of connection, and magnetic flow convertor 2 is in reset state, and tripping push rod 24 is taken The latch hook portion 232 of buckle 245 and lock is in hasp state, and tripping push rod 24 is lockable, the traction in thread off face 242 and breaker Bar 302 disengages, and trip spring 25 elongates energy storage；Indicating arm 4 is in rear (shown in Figure 12, lower section) on drawing, alarm Contact surface 41 is contacted and is compressed it with the push contact 51 of alarm conversion element 5, and alarm conversion element 5 is in reset state, Common wire 52 connects with the first conversion conducting wire 53, and common wire 52 and the second conversion conducting wire 54 disconnect；The indicating arm 4 The instruction electric leakage of cue mark 44 reset state (shown in Figure 12).

Leakage tripping device act when, magnetic flow convertor 2 obtain signal designation movement, thread off push rod 24 hasp portion 245 with The latch hook portion 232 of lock unlocks, thread off push rod 24 under the action of trip spring 25 forward slip until limit contact surface 247 with The bracket 21 of magnetic flow convertor contacts and stops, and tripping face 242 contacts with the draw bar 302 of breaker and push its unlock, breaks The tripping of road device, meanwhile, the release link 243 of tripping push rod 24 pushes the dynamic iron core 221 of electromagnetic mechanism 22 to reset；Indicating arm 4 is with de- It detains the sliding of push rod 24 and synchronizes forward slip (shown in Figure 13, top) on drawing, the push contact 51 for conversion element 5 of alarming It disengages and is in alarm groove 42 with alarm contact surface 41, be converted into release conditions, alarm conversion element 5 is converted to dynamic Make state, common wire 52 and the first conversion conducting wire 53 disconnect, and common wire 52 connects with the second conversion conducting wire 54；The finger Indicating note 44 is synchronous to be moved forward, instruction electric leakage action state (shown in Figure 13).

After releasing leak current fault, when breaker is detained again, the lever 301 of breaker moves backward the push rod with tripping push rod 24 241 contact and withstand that the effect of trip spring 25 is lower to push tripping push rod 24 to move backward, the hasp portion 245 for making to thread off push rod 24 It is overlapped with the latch hook portion 232 of lock, while trip spring 25 elongates energy storage, tripping face 242 and the breaker of tripping push rod 24 Draw bar 302 is detached from, and the linkage portion 244 of tripping push rod 24 drives 4 synchronous slide of indicating arm, and indicating arm 4 is with tripping push rod 24 It slides and synchronizes and slide backward (shown in Figure 12, lower section) on drawing, the alarm contact surface 41 and alarm conversion element of indicating arm 4 5 push contact 51 is contacted and is compressed it, and alarm conversion element 5 is converted to reset state, common wire 52 and the first conversion Conducting wire 53 is connected, and common wire 52 and the second conversion conducting wire 54 disconnect；The cue mark 44, which synchronizes, to be moved backward, instruction electric leakage Reset state (shown in Figure 12).

The specific structure of the magnetic flow convertor 2 of above-described embodiment is only a kind of preferred version, is with push rod 24 of threading off, lock 23 connect circuit breaker operation mechanism 300 and electromagnetic mechanism 22, and indicating arm 4 is connect with tripping push rod 24, and magnetic in practice Logical converter 2 is that other structures form is also possible row, as long as the variation of the working condition of magnetic flow convertor 2 is able to drive finger Show that bar 4 makees change in displacement, drives indicating arm 4 for example, can connect directly from the dynamic iron core 221 of electromagnetic mechanism 22 It can.

In addition, indicating arm 4 is also not necessarily limited to the translation for making straight line along the capping of lid 200 in above-described embodiment, practical middle finger The curve-likes movement such as show bar 4 and can also rotate, swing, as long as the position shape of indicating arm 4 can be reflected in opening or form 201 The variation of state can also reach same indicating effect.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims (9)

1. a kind of leakage tripping device of breaker, the breaker includes an insulation shell, which includes lid and pedestal； The leakage tripping device is set in the pedestal, and leakage tripping device includes a pedestal and a magnetic flow convertor；The magnetic flux Converter is mounted in pedestal, for driving breaker to execute trip action；It is characterized by:

The leakage tripping device further includes an indicating arm, which moves with respect to the insulation shell of breaker, has indicating arm There are electric leakage reset position and electric leakage operating position；When the indicating arm is in electric leakage reset position, in the capping of the lid of breaker Upper upright projection forms the first subpoint and hangs down on the capping of the lid of breaker when the indicating arm is in electric leakage operating position It delivers directly shadow and forms the second subpoint, there are distances between first subpoint and the second subpoint；

Indicating arm is corresponded on the lid of the breaker and offers opening or form, keeps the electric leakage reset position of indicating arm and electric leakage dynamic The transition status for making position is externally visible through the opening or form；Electric leakage in the opening or form corresponding to indicating arm is multiple Position position and electric leakage operating position are equipped with mark；Alternatively, described cover is answered by opening or form corresponding to the electric leakage of indicating arm Position position and electric leakage operating position are equipped with mark；

When the magnetic flow convertor is in electric leakage reset state, the indicating arm is in electric leakage reset position；When the magnetic flux When converter acts, magnetic flow convertor drives circuit breaker tripping at this time, and the indicating arm is driven to slide into electric leakage movement simultaneously Position.

2. the leakage tripping device of breaker according to claim 1, it is characterised in that: lid of the indicating arm with respect to breaker Capping be slidably connected, glide direction is parallel with the capping of the lid of breaker.

3. the leakage tripping device of breaker according to claim 2, it is characterised in that: the magnetic flow convertor includes a tripping It push rod, bracket and the electromagnetic mechanism being fixed on bracket and is hinged on bracket and the lock snap-fitted with tripping push rod Button；The tripping push rod one end of length direction be equipped with the push rod of the lever mated of breaker and with the draw bar of breaker The tripping face of cooperation, and the release link cooperated with the dynamic iron core of electromagnetic mechanism is equipped in the other end of its length direction, it is threading off The linkage portion connecting with indicating arm is additionally provided on push rod and with the hasp portion of snap fit and for providing the tripping of tripping force Spring；When the magnetic flow convertor is in electric leakage action state, the hasp portion of the tripping push rod and lock are unlocked, and tripping pushes away Bar moves under the tripping force effect of trip spring, and the tripping face for push rod of threading off contacts with the draw bar of breaker and pushes its solution Lock, causes circuit breaker tripping, while the release link for push rod of threading off pushes the dynamic iron core of electromagnetic mechanism to reset, the linkage for push rod of threading off Portion drives the indicating arm to slide into electric leakage operating position；When breaker is detained again, the lever of breaker and pushing away for tripping push rod Bar contacts and withstands the lower promotion tripping push rod reset movement of trip spring effect, makes it and latches hasp again, threads off simultaneously Spring elongation energy storage, the tripping face for push rod of threading off and the draw bar of breaker are detached from, and so that breaker is returned to on-state, and de- The linkage portion of button push rod drives indicating arm to slide into electric leakage reset position.

4. the leakage tripping device of the breaker according to Claims 2 or 3, it is characterised in that: the leakage tripping device further includes One alarm conversion element, the alarm conversion element are set to indicating arm side, towards on the side of indicating arm on conversion element of alarming Side equipped with push contact, and the indicating arm towards alarm conversion element is equipped with the alarm contact surface cooperated with push contact With alarm groove；When indicating arm is in electric leakage reset position, the push contact of the alarm conversion element and the report of indicating arm Alert contact face contact is simultaneously pressed by it, and alarm conversion element is made to be in reset state；When indicating arm is in electric leakage operating position, The push contact of alarm conversion element falls into release in the alarm groove, and alarm conversion element is made to be converted to action state.

5. the leakage tripping device of breaker according to claim 4, it is characterised in that: the leakage tripping device further includes a finger Show pedestal, which fixes with respect to the lid of breaker, and instruction sliding slot and alarm chamber are offered on the instruction pedestal, signified Show that bar is mounted in instruction sliding slot, it is intracavitary that the alarm conversion element is mounted on alarm.

6. the leakage tripping device of breaker according to claim 3, it is characterised in that: the lock is existed by lock shaft hub setting It on bracket, latches one end and dynamic iron core is inconsistent, the other end is equipped with the latch hook portion with the hasp portion cooperation of tripping push rod, described Latch hook portion is configured to the snap-in structure for engaging or disengaging with the cooperation of hasp portion.

7. the leakage tripping device of breaker according to claim 6, it is characterised in that: be arranged promising lock in the lock shaft The torsional spring of turning power is provided, which is against on lock, and the other end is against on bracket.

8. the leakage tripping device of breaker according to claim 3, it is characterised in that: the trip spring setting is pushed away in tripping Between bar and bracket, one end is hung on bracket, and the other end is hung on tripping push rod.

9. the leakage tripping device of breaker according to claim 3, it is characterised in that: the tripping push rod passes through thereon Leading arm guide groove installation corresponding with bracket is located on bracket, and can be slided along guide groove.