CN210443508U - Switching-on and switching-off indicating device of circuit breaker - Google Patents

Abstract

The utility model discloses a switching-off and switching-on indicating device of a circuit breaker, which comprises an indicating component which is rotatably arranged on an installation part of a shell of the circuit breaker, a reset structure which is arranged between the indicating component and the installation part, and a driving rod which is arranged in the shell of the circuit breaker and driven by a contact mechanism in a reciprocating way; still including connecting actuating lever and indicating part elastic drive spare, the actuating lever is towards or keep away from the elastic drive spare direction reciprocating motion in, drive indicating part trigger signal through elastic drive spare and instruct the switch to open or close, adopt this technical scheme, through elastic drive spare transmission motion and power between actuating lever and indicating part, and play the atress cushioning effect, transmission efficiency is high, and the motion stroke of actuating lever has been promoted in the design like this, can satisfy the great condition of motion stroke of contact mechanism divide-shut brake, it is accurate reliable to the output of circuit breaker divide-shut brake signal, promote the performance of product.

Description

Switching-on and switching-off indicating device of circuit breaker

Technical Field

The utility model relates to a low-voltage circuit breaker technical field, concretely relates to divide-shut brake indicating device of circuit breaker.

Background

The plastic shell type circuit breaker is usually adopted as a terminal switch or a branch switch in a low-voltage distribution system, a power circuit and mechanical equipment are protected in real time, in order to better observe the working state of the plastic shell type circuit breaker, the opening and closing state of the circuit breaker can be displayed according to the opening and closing action of the moving contact through the opening and closing indicating device arranged on the plastic shell type circuit breaker, so that the working state of the circuit breaker can be clearly judged during line maintenance, maintenance and circuit closing, and the line safety and personnel safety are guaranteed.

Chinese patent document CN2017517626U discloses a molded case circuit breaker with electromechanical integrated switching-on/off indication function, which comprises a switching-on/off indication mechanism and a control circuit board arranged in a housing, the switching-on/off indication mechanism comprises a support, an indication member and a micro switch, the support is fixed in the housing, the indication member is hinged on the support and rotates relative to the support, one end of the indication member passes through the housing and is connected with a driving member, the other end of the indication member is provided with an indication part, the driving member is a rotating shaft of the circuit breaker for driving a moving contact to switch on/off, one end of the indication member is provided with an inclined plane convenient for driving the rotating shaft, and the side edge of the indication member is bent to form a pressing part for pressing the micro switch, i.e. the rotating shaft pushes the indication member to rotate when switching-on and moves away from the inclined plane of the indication member when, because the friction loss can be caused to pivot and the frequent rotational contact of inclined plane, must increase the fit clearance between the two, according to the leverage of pilot lever, cause to press the splenium to trigger micro-gap switch inaccurate and make the position of index mark not just, consequently, the assembly precision requirement on pivot and inclined plane is very high, needs the size of strict control assembly allowance, and the assembly degree of difficulty is big, and life is short.

Therefore, the existing switching-on/off indicating device adopts a mode that the driving rod makes a direct push motion to indirectly drive the indicating piece to act instead of a mode of directly driving the indicating piece to rotate, for example, chinese patent document CN207441609U discloses a switching-on/off indicating device of a circuit breaker, which comprises a shell, a microswitch, an indicating component and a power structure for driving the indicating component to trigger the microswitch, wherein the power structure comprises a rotating arm, a reset structure and a driving rod, the rotating arm is rotatably arranged in the shell, and the rotating arm drives an acting end of the indicating component to move along a preset track in a rotating process; the driving rod can be arranged in the shell in a reciprocating mode, one end of the driving rod is abutted to the end portion, provided with the inclined plane, of the rotating arm, the other end of the driving rod extends out of the shell and abuts against the moving contact, when the moving contact is in brake opening action, the driving rod is pushed to move upwards to abut against the rotating arm to rotate, and then the rotating arm drives the indicating component to move according to a preset track.

Therefore, the above patent documents show that the conventional opening/closing indication device has the following problems in practical use: 1. the moving contact and the rotating shaft are instantly switched on and off to generate large energy and high speed, according to the hard connection relation among the driving rod, the rotating arm and the indicating component, the driving rod directly acts on the rotating arm, the impact effect on the end part of the rotating arm is large, the possibility of damage and even breakage is caused, the transmission resistance is large, the blocking is easy, and the structural reliability is poor; 2. when the opening and closing stroke of the moving contact is high, the upward moving distance of the driving rod is limited, so that the driving rod is forced to press the stroke of the moving contact, and the stroke range of the moving contact cannot be well met.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the divide-shut brake indicating device among the prior art and passing through the actuating lever direct action and to the transmission motion of indicating part at the rotor arm, cause impact damage or even fracture possibility to the rotor arm tip, structural reliability is poor to and can not better satisfy the problem of moving contact stroke scope, thereby provide one kind and play the atress buffering to the actuating lever, structural stability is good, can satisfy the divide-shut brake indicating device of the circuit breaker of the great condition of contact mechanism stroke.

In order to solve the technical problem, the utility model provides a divide-shut brake indicating device of circuit breaker, include:

the indicating component is rotatably arranged on the mounting part of the breaker shell;

a signal indication switch attached to the attachment portion with respect to the indication member;

a reset structure provided between the indication member and the mounting portion, for applying a biasing force to the indication member to rotate toward a side away from the signal indication switch;

the driving rod is arranged in the breaker shell in a reciprocating manner, one end of the driving rod penetrates through the mounting part, and the other end of the driving rod is driven by a contact mechanism in the breaker shell;

the elastic transmission part is connected with the driving rod and the indicating part, and the driving rod drives the indicating part to trigger the signal indicating switch to be turned on or turned off through the elastic transmission part in the reciprocating movement of the driving rod towards or away from the direction of the elastic transmission part.

As a preferred scheme, the indicating component pass through the fixed axle rotate set up in on the installation department, the elastic transmission spare is established for the cover the installation department with indicate the torsional spring structure on the fixed axle between the component.

Preferably, one end of the torsion spring structure is inserted into the mounting hole of the indication member, and the other end of the torsion spring structure abuts against one end of the driving rod penetrating through the mounting portion.

As an optimal scheme, the installation department with the circuit breaker casing corresponds and is provided with the suitability the through-hole that the actuating lever passed, the one end shaping of actuating lever has the circular arc recess that is fit for connecting the torsional spring structure other end.

As a preferred scheme, the installation department with set up the spring between the actuating lever, the spring housing is established one end of actuating lever is last, and its one end butt is in the bottom surface of installation department, the other end restriction is in on the stop pin that the actuating lever set up.

As a preferred scheme, it is right that the through-hole is provided with in the circuit breaker casing the uide bushing that the motion of actuating lever leads, the actuating lever is mobilizable to be worn to establish the uide bushing with between the installation department.

As a preferable scheme, a guide hole suitable for the driving rod to pass through and a containing groove communicating the guide hole and the through hole are arranged in the guide sleeve, and the spring and the limit pin are contained in the containing groove.

Preferably, the signal indication switch is provided with a trigger key facing the indication part, the indication part comprises a pressing end opposite to the trigger key and an indication panel arranged at the top of the indication part, and the pressing end is in pressing contact with or separated from the trigger key when rotating along with the indication part.

As a preferred scheme, the reset structure is a tension spring, and two ends of the tension spring are respectively connected to the indicating component and the hanging hole formed in the mounting part.

As a preferred scheme, a limiting rod assembly which is matched and abutted against the indicating component is arranged on the circuit breaker shell.

As a preferred scheme, the installation department for can dismantle set up in the mounting panel of circuit breaker casing upper end is provided with on the mounting panel and is fit for the installation signal indication switch's mounting groove.

Compared with the prior art, the technical scheme of the utility model have the following advantage:

1. the utility model provides a circuit breaker divide-shut brake indicating device, when the action of opening the brake of contact mechanism, the actuating lever moves towards the elastic transmission pole direction, through pushing against the elastic transmission part to drive the indicating component to trigger the signal indication switch is opened, thereby making the signal indication switch send the signal of opening the brake, and when the action of closing the brake of contact mechanism, the actuating lever moves towards the direction far away from the elastic transmission pole, at this moment indicating component and elastic transmission part reset under the effect of reset structure, thereby making the signal indication switch separate from the indicating component and send the signal of closing the brake, adopting the technical scheme, through the transmission motion and force of the elastic transmission part between the actuating lever and the indicating component, still playing the force buffering effect, reducing the direct impact effect that the actuating lever produced to the indicating component, the transmission efficiency is high, and, the design can not limit the distance that the actuating lever moves towards the elastic transmission part, the action of extrusion deformation to the elastic transmission part is larger, the movement stroke of the driving rod is effectively improved, the condition that the movement stroke of the contact mechanism is larger can be met, the opening and closing indicating device for rice is accurate and reliable in halving and closing signal output, good in structural stability, reliable in matching transmission and capable of improving the service performance of products.

2. The utility model provides a circuit breaker divide-shut brake indicating device, elastic transmission spare establishes at fixed epaxial torsional spring structure for the cover, can extrude torsional spring structure's the other end when the actuating lever shifts up, make torsional spring structure at pressurized deformation in-process to indicating part transmission motion and power to realize indicating part's divide-shut brake rotation operation, torsional spring structure plays the cushioning effect to the actuating lever in the transmission process, can play the counteraction effect to the actuating lever according to torsional spring structure's deformation power simultaneously, a move down the motion for the auxiliary drive pole, thereby promote the action sensitivity and the reliability of actuating lever.

3. The utility model provides a circuit breaker divide-shut brake indicating device, the actuating lever can upwards jack-up torsional spring structure when passing the through-hole of installation department, and torsional spring structure takes place the deformation buffering promptly in the same place to can not block the motion of shifting up of actuating lever, increase motion stroke, according to torsional spring structure other end butt plays limiting displacement to the other end of torsional spring structure through the circular arc recess at the fashioned circular arc recess of actuating lever, prevents that torsional spring structure from breaking away from the actuating lever, and the installation is stable good, and the cooperation transmission is reliable.

4. The utility model provides a circuit breaker divide-shut brake indicating device is right through the uide bushing the actuating lever plays the motion guide effect towards or when keeping away from the elastic drive spare direction and making reciprocating motion, guarantees that the one end of actuating lever can be accurate reliably pass the through-hole of installation department to prevent that the actuating lever from taking place the offset in the motion process, installation stability is good.

5. The utility model provides a circuit breaker divide-shut brake indicating device, be provided with guiding hole and storage tank in the uide bushing, spring and spacer pin hold in the storage tank, and this kind of structure sets up, through the storage tank to the spring with the spacer pin plays installation limiting displacement, can avoid the spring with the spacer pin exposes the setting, and installation protection nature is good.

6. The utility model provides a circuit breaker divide-shut brake indicating device, be provided with the gag lever post subassembly that offsets with the indicating part cooperation on the circuit breaker casing, this kind of structure setting can be injectd through the gag lever post subassembly the biggest rotation stroke of indicating part avoids indicating part because of rotating the too big instruction face position that causes indicating part of stroke just not just the condition, ensures that the user can accurate reliable observation the separating brake or the combined floodgate indicating information who shows on the instruction face.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of an opening/closing indicating device of a circuit breaker according to the present invention;

fig. 2 is a schematic sectional structure view of the opening and closing indicating device of the present invention;

fig. 3 is a schematic view of an installation structure of the opening and closing indicating device of the present invention;

fig. 4 is a schematic plan structure view of the opening and closing indicating device of the present invention;

fig. 5 is a schematic structural view of the guide sleeve of the present invention;

description of reference numerals: 1-indication part, 11-pressing end, 12-indication panel, 2-signal indication switch, 3-reset structure, 4-driving rod, 40-arc groove, 41-spring, 42-limit pin, 5-elastic transmission piece, 6-installation part, 61-fixed shaft, 62-through hole, 7-breaker shell, 71-contact structure, 72-limit rod component, 8-guide sleeve, 81-guide hole and 82-containing groove.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

This embodiment provides a switching-on and switching-off indicating device of circuit breaker as described in fig. 1-5, includes:

an indicating member 1 rotatably provided on a mounting portion 6 of the circuit breaker case 7;

a signal indication switch 2 attached to the attachment portion 6 with respect to the indication member;

a reset mechanism 3 provided between the indicating member 1 and the mounting portion 6 and applying a biasing force to the indicating member 1 to rotate toward a side away from the signal indicating switch 2;

a drive rod 4 reciprocally disposed in the circuit breaker case 7, having one end passing through the mounting portion 6 and the other end driven by a contact mechanism 71 in the circuit breaker case 7;

the elastic transmission piece 5 is connected with the driving rod 4 and the indicating component 1, and in the reciprocating movement of the driving rod 4 towards or away from the elastic transmission piece 5, the indicating component is driven by the elastic transmission piece 5 to trigger the signal indicating switch 2 to be opened or closed, namely, when the breaker is opened, the contact mechanism drives the driving rod to move towards the elastic transmission piece 5, the elastic transmission piece 5 drives the indicating component to rotate towards the signal indicating switch 2, thereby triggering the signal indicating switch 2 to open, and when the circuit breaker is switched on, the contact mechanism 71 drives the driving rod to move towards the direction far away from the elastic transmission piece 5, at the moment, the elastic transmission piece 5 can restore the deformation, and under the action of the reset structure 3, the indicating component 1 is driven to reset and rotate towards the direction away from the signal indicating switch, and the information indicating switch 2 is closed when being separated from the indicating component.

In the core technical solution of this embodiment in the above embodiment, when the contact mechanism 71 performs a switching-off operation, the driving rod 4 moves towards the elastic driving rod 5, the elastic driving member 5 is pushed to drive the indicating component 1 to trigger the signal indicating switch 2 to be turned on, so that the signal indicating switch 2 sends a switching-off signal, and when the contact mechanism performs a switching-on operation, the driving rod 4 moves towards a direction away from the elastic driving rod, at this time, the indicating component 1 and the elastic driving member reset under the action of the resetting structure 3, so that the signal indicating switch 4 is separated from the indicating component 1 and sends a switching-on signal, by adopting the technical solution, the elastic driving member 5 transmits a motion and a force between the driving rod 4 and the indicating component 1, and also performs a stress buffering action, so as to reduce a direct impact action of the driving rod on the indicating component, high and the nothing of transmission hinders to, design like this can not restrict the distance that actuating lever 4 removed towards elastic transmission spare direction is only bigger to elastic transmission spare's extrusion deformation effect, has nevertheless effectively promoted actuating lever 4's motion stroke can satisfy the great condition of motion stroke of contact mechanism divide-shut brake, the utility model discloses a divide-shut brake indicating device divides closing signal output accurate reliable, and structural stability is good, and the cooperation transmission is reliable, promotes the performance of product.

The specific arrangement of the elastic transmission member will be described in detail with reference to fig. 1 to 3:

the indicating component 1 is rotatably arranged on the installation part 6 through a fixed shaft 61, the elastic transmission part 5 is a torsion spring structure sleeved on the fixed shaft 61 between the installation part 6 and the indicating component 1, the indicating component and the torsion spring structure are both installed and positioned through the fixed shaft, specifically, one end of the torsion spring structure is arranged in an installation hole of the indicating component 1 in a penetrating manner, the other end of the torsion spring structure is abutted against one end of the driving rod 4 penetrating through the installation part 6, the driving rod 4 can extrude the other end of the torsion spring structure when moving upwards, so that the torsion spring structure transmits motion and force to the indicating component 1 in a compression deformation process to realize the opening and closing rotation operation of the indicating component 1, the torsion spring structure plays a buffering role in a transmission process, and simultaneously plays a reaction role on the driving rod 4 according to the deformation force of the torsion spring structure, is used for assisting the downward movement of the driving rod, thereby improving the action sensitivity and reliability of the driving rod 4.

In this embodiment, as shown in fig. 3, the mounting portion 6 is provided with a through hole 62 corresponding to the circuit breaker housing 7 for the driving rod 4 to pass through, one end of the driving rod 4 is formed with an arc groove 40 suitable for connecting the other end of the torsion spring structure, with the structure, when the driving rod 4 passes through the through hole of the mounting part 6, the torsion spring structure can be jacked upwards, namely, the torsional spring structure is deformed and buffered along the situation when being extruded, thereby the upward movement of the driving rod 4 can not be blocked, the driving rod designed in the way has large movement stroke and low assembly requirement, according to the other end of the torsion spring structure abuts against the arc groove formed in the driving rod 4, the other end of the torsion spring structure is limited through the arc groove 40, the torsion spring structure is prevented from being separated from the driving rod 4, installation stability is good, and matching transmission is reliable.

In order to ensure that the driving rod 4 can realize the reset function stably and reliably, a spring 41 is arranged between the mounting part 6 and the driving rod 4, the spring 41 is sleeved on one end of the driving rod 4, one end of the spring is abutted to the bottom surface of the mounting part 6, the other end of the spring is limited on a limiting pin 42 arranged on the driving rod 4, the spring 41 drives the driving rod 4 to move towards the direction far away from the elastic transmission piece 5 when the contact mechanism is switched on, the other end of the driving rod 4 is ensured to be reliably abutted to a movable contact of the contact mechanism 71, and the matching transmission is reliable.

Combine shown in fig. 4-5, correspond in the circuit breaker casing 7 through-hole 62 is provided with right the uide bushing 8 that the motion of actuating lever 4 led to, the mobilizable dress of wearing of actuating lever 4 is in uide bushing 8 with between the installation department 6, it is right through uide bushing 8 actuating lever 4 plays the motion guide effect when making reciprocating motion towards or keeping away from the elastic drive spare direction, guarantees that the one end of actuating lever 4 can accurately reliably pass the through-hole of installation department 61, thereby prevents actuating lever 4 takes place offset in the motion process, and installation stability is good.

Further arranged, a guide hole 81 suitable for the driving rod to penetrate is formed in the guide sleeve 8, the guide hole 81 is communicated with the accommodating groove 82 of the through hole 62, the spring 41 and the limiting pin 42 are accommodated in the accommodating groove 82, and the structure is arranged so that the spring 41 and the limiting pin 42 can be prevented from being exposed through the accommodating groove 82, and the installation protection performance is good.

The specific arrangement of the indicating member and the signal indicating switch will be described in detail with reference to fig. 1 to 4:

the signal indicating switch 2 is a microswitch, which has a trigger button facing the indicating component 1, the indicating component 1 includes a pressing end 11 opposite to the trigger button, and an indicating panel 12 arranged on the top of the indicating component 1, the indicating panel is provided with an opening and closing indicating mark, the pressing end 11 is pressed against or separated from the trigger button when rotating along with the indicating component 1, so as to trigger the signal indicating switch 2 to be opened or closed, wherein the separation rotation of the indicating component 1 and the signal indicating switch 2 is mainly realized by the driving of the acting force applied by the reset structure 3, the reset structure 3 is a tension spring, the two ends of the tension spring are respectively connected in the hanging holes formed by the indicating component 1 and the mounting part 6, so as to reliably realize the reset motion of the indicating component, the indication panel 12 correspondingly shows the opening and closing state of the circuit breaker by rotating along with the indication component 1.

As shown in fig. 1, the circuit breaker housing 7 is provided with a limiting rod assembly 72 that is matched and abutted against the indicating component, the limiting rod assembly 72 includes two limiting rods that are separately arranged on a rotation path of the indicating component 1 and are used for respectively limiting rotation strokes of the indicating component 1 in opening and closing states, and this structural arrangement can limit a maximum rotation stroke of the indicating component 1 through the limiting rod assembly 72, thereby avoiding a situation that an indicating surface of the indicating component is not positioned due to an excessively large rotation stroke of the indicating component 1, and ensuring that a user can accurately and reliably observe opening or closing indicating information displayed on the indicating surface.

In this embodiment, installation department 6 for can dismantle set up in the mounting panel of circuit breaker casing 7 upper end, indicating component, signal indication switch, reset structure etc. all set up on the mounting panel, be provided with on the mounting panel and be fit for the installation signal indication switch 2's mounting groove, it is right signal indication switch 2 plays spacing installation effect, of course, installation department 6 also can be only certain position of circuit breaker, for example the installation department is the upper cover that sets up in circuit breaker casing upper end, and is here not right the other modes of installation department are made repetitious description one by one.

The divide-shut brake indicating device that this embodiment provided adopts actuating lever 4 makes straight reciprocating motion's drive mode, through elastic transmission spare 5 drives indicating component 1 rotates and triggers signal indication switch 2 action, and the design has effectively reduced like this the direct impact effect of actuating lever 4 has increased the motion stroke of actuating lever simultaneously, and is also comparatively convenient to the installation of each spare part, can reduce the requirement to the assembly precision, improves assembly efficiency.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (11)

1. The utility model provides a divide-shut brake indicating device of circuit breaker which characterized in that includes:

an indicating member (1) rotatably provided on a mounting portion (6) of the circuit breaker case (7);

a signal indication switch (2) attached to the attachment unit (6) with respect to the indication member;

a reset structure (3) which is arranged between the indicating component (1) and the mounting part (6) and applies a biasing force to the indicating component (1) to rotate towards the side far away from the signal indicating switch (2);

the driving rod (4) is arranged in the breaker shell (7) in a reciprocating manner, one end of the driving rod penetrates through the mounting part (6), and the other end of the driving rod is driven by a contact mechanism (71) in the breaker shell (7);

elastic transmission spare (5), connect actuating lever (4) with indicate part (1), during actuating lever (4) orientation or keep away from elastic transmission spare (5) direction reciprocating motion, through elastic transmission spare (5) drive indicate the part to trigger signal indication switch (2) are opened or are closed.

2. The opening/closing indicating device of a circuit breaker according to claim 1, wherein: indicate part (1) rotate through fixed axle (61) set up in on installation department (6), elastic transmission spare (5) are established for the cover install department (6) with indicate torsional spring structure on fixed axle (61) between part (1).

3. The opening/closing indicating device of the circuit breaker according to claim 2, wherein: one end of the torsion spring structure penetrates through the installation hole of the indicating component (1), and the other end of the torsion spring structure abuts against one end of the driving rod (4) penetrating through the installation part (6).

4. The opening/closing indicating device of the circuit breaker according to claim 2 or 3, characterized in that: installation department (6) with circuit breaker casing (7) correspond and are provided with suitably through-hole (62) that actuating lever (4) passed, the one end shaping of actuating lever (4) has suitable connection circular arc recess (40) of the torsional spring structure other end.

5. The opening/closing indicating device of the circuit breaker according to claim 4, wherein: installation department (6) with set up spring (41) between actuating lever (4), spring (41) cover is established one of actuating lever (4) is served, and its one end butt is in the bottom surface of installation department (6), the other end restriction is in on spacer pin (42) that actuating lever (4) set up.

6. The opening/closing indicating device of the circuit breaker according to claim 5, wherein: correspond in circuit breaker casing (7) through-hole (62) are provided with right the guide sleeve (8) that the motion of actuating lever (4) led, the mobilizable dress of wearing to establish of actuating lever (4) guide sleeve (8) with between installation department (6).

7. The opening/closing indicating device of a circuit breaker according to claim 6, wherein: a guide hole (81) suitable for the driving rod to penetrate through and a containing groove (82) communicated with the guide hole (81) and the through hole (62) are formed in the guide sleeve (8), and the spring (41) and the limiting pin (42) are contained in the containing groove (82).

8. The opening/closing indication device of a circuit breaker according to any one of claims 5 to 7, wherein: the signal indication switch (2) is provided with a trigger key facing the indication component (1), the indication component (1) comprises a pressing end (11) opposite to the trigger key and an indication panel (12) arranged at the top of the indication component (1), and the pressing end (11) is in abutting contact with or separated from the trigger key when rotating along with the indication component (1).

9. The opening/closing indicating device of a circuit breaker according to claim 8, wherein: the reset structure (3) is a tension spring, and two ends of the tension spring are respectively connected to the indicating component (1) and the mounting part (6) in the formed hanging hole.

10. The opening/closing indicating device of a circuit breaker according to claim 9, wherein: and a limiting rod assembly (72) matched and abutted with the indicating component is arranged on the breaker shell (7).

11. The opening/closing indicating device of the circuit breaker according to claim 9 or 10, wherein: installation department (6) for can dismantle set up in the mounting panel of circuit breaker casing (7) upper end, be provided with on the mounting panel and be fit for the installation the mounting groove of signal indication switch (2).

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