CN214123819U

CN214123819U - Leakage tripping device of leakage circuit breaker

Info

Publication number: CN214123819U
Application number: CN202120297579.8U
Authority: CN
Inventors: 周维峰; 林凯; 胡广召
Original assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Current assignee: WENZHOU AOELEC ELECTRICAL CO Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-03
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a circuit breaker, especially electric leakage tripping device on the electric leakage circuit breaker. The utility model adopts the following technical scheme: the utility model provides a leakage circuit breaker's electric leakage trip gear which characterized in that: including handle mechanism, electric leakage actuating mechanism, get electric mechanism and tripping device, electric leakage actuating mechanism is including the lever, jump and detain, hasp and torsional spring, and the lever is articulated to be set up on electric leakage circuit breaker's casing through first round pin axle, and the hasp also rotates the setting through first round pin axle simultaneously, through adopting above-mentioned scheme, the utility model overcomes the problem that prior art exists provides a rational in infrastructure, simple to operate's neotype electric leakage tripping device on the electric leakage circuit breaker.

Description

Leakage tripping device of leakage circuit breaker

Technical Field

The utility model relates to a circuit breaker, especially electric leakage tripping device on the electric leakage circuit breaker.

Background

The current electric leakage circuit breaker get the electricity mechanism completely different with in this application file, the structure is complicated, bulky, the installation is inconvenient to other reasons are threaded off and the differentiation that electric leakage thread off can not be fine.

Disclosure of Invention

The utility model overcomes the problems existing in the prior art, and provides a novel leakage tripping device on a leakage circuit breaker with reasonable structure and convenient installation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a leakage circuit breaker's electric leakage trip gear which characterized in that: the electric leakage breaker comprises a handle mechanism, an electric leakage action mechanism, a power taking mechanism and a tripping mechanism, wherein the electric leakage action mechanism comprises a lever, a jump buckle, a lock catch and a torsional spring, the lever is hinged on a shell of the electric leakage breaker through a first pin shaft, the lock catch is also rotatably arranged through the first pin shaft, the jump buckle is hinged at the upper end of the lever, the jump buckle is connected with an electric leakage handle in the handle mechanism through a connecting rod, the lock catch comprises a first extension pin and a second extension pin, a clamping platform is arranged at the upper end of the first extension pin, the lock catch is clamped with the jump buckle through the clamping platform after the electric leakage breaker is switched on to realize the positioning of the lever, the torsional spring force of the torsional spring acts on the second extension pin of the lock catch to enable the clamping platform on the first extension pin of the lock catch to be clamped with the jump buckle, the tripping mechanism comprises a release and a push block, the release can drive the push block to move, the push block is arranged below the second extension pin, the ejector pad can promote the second and extend the foot and realize the hasp rotation, and the hasp rotation can make the ka tai and jump the separation of detaining and remove lever location, get electric mechanism including setting up the conducting strip on the circuit breaker casing, the conducting strip is provided with two sets at least, adjacent two sets of conducting strips separate and align the setting, every group conducting strip is including first, two conducting strips of second, first, two conducting strip intervals of second set up, be provided with the spout on the circuit breaker casing and lie in first, between two conducting strips of second, spout one end is provided with the baffle, be provided with the support on the spout, be provided with the conflict spring between support one end and the baffle, the support can slide the cooperation with the spout, the other end and the lever of support correspond, the lever rotation can promote the support and remove, be provided with the mounting hole that corresponds with every group conducting strip on the support, be provided with electrically conductive contact piece in the mounting hole, electric leakage circuit breaker is promoted by the lever and is overcome the electrically conductive contact piece behind the conflict spring elastic force removal of conflict spring at combined floodgate in-over process support The two ends of the electric leakage breaker are in contact with the first conducting plate and the second conducting plate of the corresponding group of conducting plates, so that the first conducting plate and the second conducting plate of the group of conducting plates are electrically conducted, and the two ends of the electric leakage breaker are disconnected with the first conducting plate and the second conducting plate after the lever moves under the action of the support and the abutting spring when the electric leakage breaker is disconnected.

Through adopting above-mentioned scheme, make electric leakage trip gear rational in infrastructure, wherein electric leakage actuating mechanism adopts above-mentioned scheme very scientific, can promote the hasp when the tripper senses the electric leakage signal, and the card platform on the hasp breaks away from with jumping the knot, and the lever just is released like this, and the support among the mechanism of getting the electricity this moment just can promote the lever and rotate the electric leakage handle return and to the disconnected position, gets the disconnection of electricity mechanism also simultaneously, and is very reasonable.

The utility model discloses a further setting is: still include the baffle, this baffle is fixed to be set up on the casing of circuit breaker, be provided with guide way and projection on the baffle, the ejector pad constitutes the direction cooperation of sliding with the guide way, the torsional spring cover is established on the projection, the hasp second is provided with torsional spring conflict post and plectrum on extending the foot, and the conflict arm of torsional spring is contradicted on the torsional spring conflict post, the plectrum is arranged in to the connecting rod of other action mechanisms of earth leakage circuit breaker, and the hasp rotates its plectrum under the ejector pad promotes and can drive the connecting rod and remove and can realize the action of other action mechanisms of earth leakage breaker, the lever upper end is provided with the display panel, is provided with the hole that supplies the display panel to show on the circuit breaker casing.

Through setting up the baffle, the convenience of installation spare part has been simplified greatly like this, sets up guide way and projection in addition on the baffle, can slide the ejector pad and carry on spacingly, and the projection is also convenient for the installation torsional spring, and the effect of display panel can distinguish this circuit breaker is that electric leakage is threaded off or other reasons are threaded off.

The utility model discloses further setting is again: the bracket is formed by integrally arranging an upper part and a lower part, wherein the upper part is an installation part, the lower part is a sliding part, the bottom surface of the sliding part is provided with a long groove, the middle part of the sliding groove is provided with a guide block, the sliding part is arranged in the sliding groove, the guide block is just arranged in the long groove on the bottom surface of the sliding part to form the guide sliding fit of the bracket and the sliding groove, the width of an installation hole on the installation part is larger than the thickness of the conductive contact piece, the conductive contact piece is arranged in the installation hole and then pressed at one side in the installation hole through a spring, and the conductive contact piece can overcome the elasticity of the spring to the conductive contact piece when contacting with the first conductive piece and the second conductive piece; the improved circuit breaker is characterized in that a boss is arranged on one side face of the conductive contact piece, a convex column is arranged on the inner wall of the mounting hole, one end of a spring is fixedly arranged on the boss, the other end of the spring is fixedly arranged on the convex column, a notch is arranged on the upper side of the conductive contact piece, the width of the notch is opposite to that of the upper side face of the mounting hole, the notch is clamped on the two sides of the upper side face of the mounting hole to realize sliding fixation between the conductive contact piece and a support, a positioning guide convex strip is arranged on the upper top face of the mounting portion, a guide sliding matched guide groove which is formed by the notch and the guide convex strip is arranged on the circuit breaker shell, the two ends of the circuit breaker shell, which are located on the conductive piece, are respectively arranged in the fixing holes, and the two ends of the conductive piece are respectively inserted into the positioning holes, and a long convex rib is arranged on the portion of the conductive piece, which is in contact with the conductive contact piece.

By adopting the above scheme, make the structure setting of this support reasonable, the direction between realization support and the spout that the setting of elongated slot and guide block can be fine, the smooth effect of direction is better, conductive contact piece passes through the spring setting in the mounting hole, like this conductive contact piece with first, can be abundant when the second conducting strip contacts, guarantee to contact well between the two, guarantee in addition that conductive contact piece can not drop when sliding, the top surface adopts above-mentioned mode cooperation with the casing on the installation department, further guarantee that the support is stable at the in-process that slides, can not take place the position change.

The utility model discloses a further setting is: the lower end of the lever is provided with a cambered surface, and the cambered surface is matched with the support to push the support to move.

By adopting the scheme, the direction of the pushing force between the lever and the bracket is consistent.

The utility model discloses a further setting is: handle mechanism is including electric leakage circuit breaker handle, electric leakage handle and electric leakage torsional spring, and electric leakage circuit breaker handle sets up with the electric leakage handle side by side, be provided with the mounting hole on the electric leakage circuit breaker handle, be provided with the round pin axle on the mounting hole, the electric leakage handle includes connecting portion and lug portion, is provided with the installation through-hole on the connecting portion, and the installation through-hole cover is established on the projection of electric leakage circuit breaker casing, and the bellying is whole fan-shaped, is provided with the connecting hole that is used for connecting the connecting rod on the bellying, and the both sides of bellying are first side and second side, and wherein first side is the conflict face, should conflict face and round pin axle cooperation, and electric leakage circuit breaker can promote the conflict face.

Through adopting above-mentioned scheme, can realize the promotion to the electric leakage handle through the promotion of round pin axle to first side at circuit breaker handle switching-on in-process, finally realize circuit breaker switching-on, if the separating brake of electric leakage, then the first side of electric leakage handle promotes the round pin axle and realizes the separating brake of whole circuit breaker, if the separating brake of other reasons, then the electric leakage handle does not rotate, just so can distinguish the condition of circuit breaker separating brake.

The utility model discloses a last setting is: the electric leakage torsional spring cover is established on the projection of electric leakage circuit breaker casing installation electric leakage handle, is provided with the draw-in groove on the electric leakage handle and being close to the second side, and the first extension foot of electric leakage torsional spring is arranged in this draw-in groove, and the second extension foot of electric leakage torsional spring is contradicted on the lug of electric leakage circuit breaker casing, and the electric leakage torsional spring produces the rotatory torsion of disconnection direction to the electric leakage handle, the second side of bellying is electric leakage handle closed a floodgate back location conflict limit, and the conflict limit is contradicted or is pressed close to the cooperation with the blend stop on electric leakage circuit breaker's the casing after closing a floodgate.

By adopting the scheme, the installation of the electric leakage torsion spring is very convenient, the structure is reasonable, the rotating angle of the electric leakage handle after switching on can be limited through the second side surface of the bulge, and the electric leakage handle is well protected.

The present invention will be further described with reference to the following specific embodiments.

Drawings

FIG. 1 is a structural diagram of the embodiment of the present invention after opening;

FIG. 2 is a structural diagram of the embodiment of the present invention in the closing process;

FIG. 3 is a structural diagram of the utility model after closing;

fig. 4 is a structural diagram of the embodiment of the present invention when the leakage is tripped;

fig. 5 is a structural diagram of the embodiment of the present invention when an overload or short circuit trip occurs;

fig. 6 is a structural diagram of the leakage operating mechanism according to the embodiment of the present invention;

FIG. 7 is a perspective view of a baffle according to an embodiment of the present invention;

fig. 8 is a perspective view of the latch according to the embodiment of the present invention;

fig. 9 is a structural diagram of a power taking mechanism according to an embodiment of the present invention;

fig. 10 is a perspective view of a conductive connecting sheet in the power-taking mechanism according to the embodiment of the present invention;

fig. 11 is a bottom structure view of the bracket of the power-taking mechanism in the embodiment of the present invention;

FIG. 12 is a schematic diagram of a shell reflecting chute according to an embodiment of the present invention;

FIG. 13 is a structural diagram of a reflection guide groove of a housing according to an embodiment of the present invention;

FIG. 14 is a diagram of a handle mechanism reflecting an off state according to an embodiment of the present invention;

fig. 15 is a structural diagram of the handle mechanism in the closing process of the embodiment of the present invention;

fig. 16 is a perspective view of a circuit breaker handle according to an embodiment of the present invention;

fig. 17 is a perspective view of the electric leakage handle according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-17, an electric leakage tripping device of an electric leakage circuit breaker comprises a handle mechanism a, an electric leakage actuating mechanism B, an electricity taking mechanism C and a tripping mechanism D, wherein the electric leakage actuating mechanism B comprises a lever B1, a trip buckle B2, a latch B3 and a torsion spring B4, the lever B1 is hinged to a housing 2 of the electric leakage circuit breaker through a first pin 1, the housing 2 of the electric leakage circuit breaker is a housing and an internal bracket connected or fixedly connected with the housing, meanwhile, the latch B3 is also rotatably arranged through the first pin 1, the trip buckle B2 is hinged to the upper end of the lever B1, the trip buckle B2 is connected with an electric leakage handle a1 in the handle mechanism a through a connecting rod 3, the latch B3 comprises a first extension pin B31 and a second extension pin B32, wherein the upper end of the first extension pin B31 is provided with a clamping table B311, and the latch B3 is clamped with the trip buckle B2 to position the lever B1 after the electric leakage circuit breaker is switched on the handle mechanism a closed, thus, the lever B1 does not move, the earth leakage breaker is in the on position, the torsion force of the torsion spring B4 acts on the second extension leg B32 of the latch B3 to urge the platform B311 of the first extension leg B31 of the latch B3 to be clamped with the jump buckle B2, the trip mechanism D comprises a release D1 and a push block D2, the release D1 can drive the push block D2 to move, the push block D2 is arranged below the second extension leg B32 of the latch B3 and opposite to the second extension leg B32, the push block D2 can push the second extension leg B32 to realize the rotation of the latch B3, the rotation of the latch B3 can separate the platform B311 from the jump buckle B3 to position the lever B3, the electricity taking mechanism C comprises a C3 arranged on the breaker housing 2, at least two groups of conducting strips C3 are arranged, each group of adjacent two groups of conducting strips are arranged in alignment, the first conducting strip C3 and two groups of the second conducting strips 3 are arranged at intervals, a sliding groove C11 is arranged on the earth leakage breaker housing 2 and between the first and second conductive plates C2, a baffle C111 is arranged at one end of the sliding groove C11, a bracket C3 is arranged on the sliding groove C11, a collision spring C4 is arranged between the bracket C3 and the baffle C111, the bracket C3 can be in sliding fit with the sliding groove C11, a mounting hole C31 corresponding to each conductive plate C2 is arranged on the bracket C3, a conductive contact piece C5 is arranged in the mounting hole C31, after the bracket C3 moves against the elastic force of the collision spring C4, both ends of the conductive contact piece C5 are in contact with the first and second conductive plates C2 of the corresponding group of conductive plates C2, so that the first and second conductive plates C2 of the group of conductive plates are electrically conducted, and after the bracket C3 moves under the action of the collision spring C4, both ends of the conductive contact piece C5 are disconnected from the first and second conductive plates C2. By adopting the scheme, the electric leakage tripping device is reasonable in structure, the electric leakage action mechanism is very scientific by adopting the scheme, when the tripper D1 senses an electric leakage signal, the lock catch B3 can be pushed, the clamping table B311 on the lock catch B3 is separated from the jump buckle B2, so that the lever B1 is released, the bracket C3 in the electricity taking mechanism can push the lever B1 to rotate at the moment, the electric leakage handle A1 returns to the off position, and the electricity taking mechanism C is also off at the same time, so that the electric leakage tripping device is very reasonable.

The utility model discloses a further setting is: the leakage circuit breaker further comprises a partition plate E, the partition plate E is fixedly arranged on the shell 2 of the leakage circuit breaker, a guide groove E1 and a convex column E2 are arranged on the partition plate E, a push block D2 and the guide groove E1 form guide sliding fit, a torsion spring B4 is sleeved on the convex column E2, a lock catch B3 second extension pin B32 is provided with a torsion spring collision column B321 and a shifting piece B322, a collision arm of the torsion spring B4 is collided on the torsion spring collision column B321, connecting rods of other action mechanisms of the leakage circuit breaker are arranged on the shifting piece B322, a lock catch B3 rotates the shifting piece B322 under the push of the push block D2 to drive the connecting rods to move so as to realize the action of the other action mechanisms of the leakage circuit breaker, the leakage circuit breaker needs to clearly show that a plurality of groups of circuit breaker units are usually arranged in parallel, action mechanisms are respectively arranged in each circuit breaker unit, lock catches are also arranged in each action mechanism, and are linked, such an actuating mechanism action drives other actuating mechanism actions simultaneously, it does not say in detail about a plurality of circuit breaker units set up mutual linkage action between them side by side we, the embodiment of the utility model provides an electric leakage actuating mechanism B is through plectrum B322 and connecting rod cooperation, such advantage is that other actuating mechanism actions are the hasp B3 of electric leakage actuating mechanism B just can not move when the circuit breaker unit is separated brake, the hasp B3 action of electric leakage actuating mechanism B then plectrum B322 can drive the connecting rod and remove then other actuating mechanism also can move the separating brake, lever B1 upper end is provided with display panel B11, is provided with the hole that supplies display panel B11 to show on the circuit breaker casing 2, can very convenient differentiation this circuit breaker be electric leakage dropout or other reasons are tripped.

In the embodiment of the present invention, the support C3 is formed by integrally providing an upper portion and a lower portion, wherein the upper portion is an installation portion C32, the lower portion is a sliding portion C33, wherein a long groove C331 is provided on a bottom surface of the sliding portion C33, a guide block C112 is provided in a middle portion of the chute C11, the sliding portion C33 is disposed in the long groove C331 of the bottom surface of the sliding portion C33 after the sliding portion C11 is disposed, the guide sliding fit between the support C3 and the chute C11 is formed by the guide block C112, a width of the installation hole C31 on the installation portion C32 is greater than a thickness of the conductive contact piece C5, the conductive contact piece C5 is disposed on one side of the installation hole C31 pressed by the spring C6 after the installation hole C31 is disposed, and the conductive contact piece 56pc 5 can overcome an elastic force of the spring C6 on the conductive contact piece C5 when contacting with the first and the second C2. By adopting the scheme, the structure of the bracket C3 is reasonable, the guide between the bracket C3 and the sliding groove C11 can be well realized by the arrangement of the long groove C331 and the guide block C112, the guide sliding effect is better, the conductive contact piece C5 is arranged in the mounting hole C31 through the spring C6, and therefore, the contact between the conductive contact piece C5 and the first and second conductive pieces C2 can be sufficient, and the good contact between the conductive contact piece C5 and the first and second conductive pieces C2 is ensured. Be provided with boss C51 on the electrically conductive contact piece C5 side, be provided with projection C311 on the mounting hole C31 inner wall, spring C6 one end sets firmly on boss C51, and the other end sets firmly on projection C311, electrically conductive contact piece C5 upside is provided with notch C52, and the width of side is relative on this notch C52 and mounting hole C31, and notch C52 card realizes sliding between electrically conductive contact piece C5 and the support C3 in the both sides of side on mounting hole C31, be provided with location direction sand grip C321 on the last top surface of installation department C32, be provided with on the electric leakage circuit breaker casing 2 and constitute direction sliding fit's guide way C13 with this direction sand grip C321. Through adopting above-mentioned scheme, guarantee that electrically conductive contact piece C5 can not drop when sliding, installation department C32 goes up the top surface and adopts above-mentioned mode cooperation with electric leakage circuit breaker casing 2, further guarantees that support C3 is stable at the in-process that slides, can not take place the position change. The two ends of the conducting strip C2 on the residual current circuit breaker shell 2 are respectively arranged in the fixing holes C14, the two ends of the conducting strip C2 are respectively inserted in the positioning holes C14, and the part of the conducting strip C2, which is in contact with the conducting contact strip C5, is provided with a long convex rib C21; by adopting the scheme, the conducting strip C2 and the conducting contact strip C5 are in line connection, and the contact effect is better.

In the embodiment of the present invention, the lower end of the lever B1 is provided with an arc B12, and the arc B12 cooperates with the bracket C3 to push the bracket C3 to move; with the above scheme, the direction of the pushing force between the lever B1 and the bracket C3 is consistent.

In the embodiment of the present invention, the handle mechanism a includes a breaker handle a1, an electric leakage handle A2 and an electric leakage torsion spring A3, the breaker handle a1 is arranged in parallel with the electric leakage handle A2, in the embodiment of the present invention, a mounting hole is provided on the breaker handle a1, a pin shaft a11 is provided on the mounting hole, the electric leakage handle A2 includes a connecting portion a21 and a protruding portion a22, a mounting through hole a211 is provided on the connecting portion a21, the mounting through hole a211 is sleeved on the protruding column of the electric leakage breaker housing 2, the protruding portion a22 is integrally fan-shaped, a connecting hole a221 for connecting the connecting rod 1 is provided on the protruding portion a22, both sides of the protruding portion a22 are a first side a222 and a second side a223, wherein the first side a222 is an interference surface a222, the interference surface a222 is matched with the pin shaft a11, and the electric leakage breaker can push the interference surface a222 to realize the electric leakage handle A2 to be switched on in the switching process; by adopting the scheme, the first side surface A222 can be pushed by the pin shaft A11 to push the leakage handle A2 in the switching-on process of the breaker handle A2, the switching-on of the leakage breaker is finally realized, if the leakage breaker is switched off, the first side surface A222 of the leakage handle A2 pushes the pin shaft A11 to realize the switching-off of the whole breaker, and if the leakage breaker is switched off for other reasons, the leakage handle A2 does not rotate, so that the switching-off condition of the breaker can be distinguished.

In the embodiment of the present invention, the electric leakage torsion spring A3 is sleeved on the convex column of the electric leakage handle A2 installed on the electric leakage circuit breaker housing 2, the electric leakage handle A2 is provided with a clamping groove a212 near the second side surface a223, the first extending pin a31 of the electric leakage torsion spring A3 is placed in the clamping groove a212, the second extending pin a32 of the electric leakage torsion spring A3 abuts against the convex block of the electric leakage circuit breaker housing 2, and the electric leakage torsion spring A3 generates the torsion force of the electric leakage handle A2 rotating in the breaking direction; by adopting the scheme, the installation of the electric leakage torsion spring A3 is very convenient, and the structure is reasonable; the second side surface A223 of the bulge A22 is a positioning abutting edge A223 of the electric leakage handle A2 after being switched on, and the abutting edge A223 after being switched on is abutted or closely matched with a barrier strip on the shell 2 of the electric leakage circuit breaker; the second side surface A223 of the projection A22 limits the rotation angle of the leakage handle A2 after closing, and the leakage handle A2 is well protected.

Claims

1. A leakage tripping device of a leakage circuit breaker, characterized in that: it includes a handle mechanism, a leakage action mechanism, a power-taking mechanism and a tripping mechanism, and the leakage action mechanism includes a lever, a jumper, a lock and a twist. spring, the lever is hingedly arranged on the housing of the leakage circuit breaker through the first pin, and the lock is also rotated through the first pin. They are connected by connecting rods. The lock includes a first extension foot and a second extension foot, wherein the upper end of the first extension foot is provided with a clamping table. After the leakage circuit breaker is closed, the lock is realized by the clamping table and the tripping buckle. For the positioning of the lever, the torsion force of the torsion spring acts on the second extension foot of the lock to urge the card platform on the first extension foot of the lock to engage with the jumper. The release mechanism includes a release and a push block. The release device can drive the push block to move. The push block is arranged below the second extension foot of the lock and opposite to the second extension foot. The push block can push the second extension foot to realize the rotation of the lock, and the rotation of the lock can make the card The platform is separated from the trip button to release the positioning of the lever. The power-taking mechanism includes conductive sheets arranged on the circuit breaker housing. At least two groups of the conductive sheets are arranged. The conductive sheet includes a first and a second conductive sheet, the first and second conductive sheets are arranged at intervals, and a chute is provided on the circuit breaker housing and located between the first and second conductive sheets, and the chute A baffle is arranged at one end, a bracket is arranged on the chute, a resistance spring is arranged between one end of the bracket and the baffle, the bracket can slide and cooperate with the chute, the other end of the bracket corresponds to a lever, and the rotation of the lever can push the bracket to move The bracket is provided with a mounting hole corresponding to each group of conductive sheets, and a conductive contact sheet is arranged in the mounting hole. During the closing process of the leakage circuit breaker, the bracket is pushed by the lever to overcome the elastic force of the resisting spring and the two ends of the conductive contact sheet are moved Contact with the first and second conductive sheets of a corresponding group of conductive sheets to realize electrical conduction between the first and second conductive sheets of the group of conductive sheets. When the leakage circuit breaker is disconnected, the lever is under the action of the bracket and the resisting spring. After the movement, both ends of the conductive contact piece are disconnected from the first and second conductive pieces.

2 . The leakage tripping device of an earth leakage circuit breaker according to claim 1 , further comprising a partition plate, the partition plate is fixedly arranged on the casing of the circuit breaker, and the partition plate is provided with a guide groove and A convex column, the push block and the guide groove form a guiding sliding fit, the torsion spring is sleeved on the convex column, and the second extension foot of the lock is provided with a torsion spring contact column and a paddle, when the torsion spring interferes The arm is in contact with the torsion spring, the connecting rod of the other action mechanism of the leakage circuit breaker is placed on the paddle, and the lock is pushed by the push block to rotate its paddle to drive the connecting rod to move, and other action mechanisms of the leakage circuit breaker can be realized. The upper end of the lever is provided with a display panel, and the circuit breaker housing is provided with a hole for the display panel to display.

3. The leakage tripping device of an earth leakage circuit breaker according to claim 1 or 2, wherein the bracket is composed of upper and lower parts, wherein the upper part is the mounting part and the lower part is the sliding part , wherein the bottom surface of the sliding part is provided with a long groove, the middle part of the sliding groove is provided with a guide block, and after the sliding part is placed in the sliding groove, the guiding block is just placed in the long groove on the bottom surface of the sliding part to form a bracket and a sliding groove The width of the mounting hole on the mounting part is larger than the thickness of the conductive contact piece. , When the second conductive sheet is in contact, it can overcome the elastic force of the spring on the conductive contact sheet; the conductive contact sheet is provided with a boss on one side, the inner wall of the installation hole is provided with a boss, and one end of the spring is fixed on the boss, The other end is fixed on the convex post, the upper side of the conductive contact piece is provided with a notch, the notch is opposite to the width of the upper side of the installation hole, and the notch is clamped on both sides of the upper side of the installation hole to realize the connection between the conductive contact piece and the bracket. A positioning guide protruding strip is arranged on the upper top surface of the installation part, and a guide groove is arranged on the circuit breaker housing to form a guiding sliding fit with the guiding protruding strip. The circuit breaker housing is located on the conductive The two ends of the sheet are respectively arranged in the fixing holes, the two ends of the conductive sheet are respectively inserted into the positioning holes, and the position of the conductive sheet in contact with the conductive contact sheet is provided with long protruding ribs.

4 . The leakage tripping device of the leakage circuit breaker according to claim 1 or 2 , wherein the lower end of the lever is provided with an arc surface, and the arc surface cooperates with the bracket to push the bracket to move. 5 .

5. The leakage tripping device of an earth leakage circuit breaker according to claim 1 or 2, wherein the handle mechanism comprises an earth leakage circuit breaker handle, an earth leakage handle and an earth leakage torsion spring, and the earth leakage circuit breaker handle and the earth leakage handle are juxtaposed Installation, the handle of the leakage circuit breaker is provided with a mounting hole, and the mounting hole is provided with a pin, the leakage handle includes a connecting part and a convex part, the connecting part is provided with a mounting through hole, and the mounting through hole is sleeved on the leakage current On the convex column of the circuit breaker housing, the convex part is integrally fan-shaped, and the convex part is provided with a connecting hole for connecting the connecting rod. The two sides of the convex part are the first side and the second side, wherein the first side is The conflicting surface is matched with the pin shaft, and the pin shaft can push the conflicting surface to realize the closing of the leakage handle during the closing process of the leakage circuit breaker.

6 . The leakage tripping device of the leakage circuit breaker according to claim 5 , wherein the leakage torsion spring is sleeved on the convex column of the leakage circuit breaker housing where the leakage handle is installed, and the leakage handle is close to the second leakage handle. 7 . The side is provided with a card slot, the first extension foot of the leakage torsion spring is placed in the card groove, the second extension foot of the leakage torsion spring is in contact with the protrusion of the leakage circuit breaker shell, and the leakage torsion spring breaks the leakage handle. Torque force in the opening direction, the second side of the raised portion is the contact edge positioned after the leakage handle is closed.