CN217426652U

CN217426652U - Circuit breaker opening and closing rapid indicating mechanism convenient to install

Info

Publication number: CN217426652U
Application number: CN202221351408.XU
Authority: CN
Inventors: 吴起军; 蒋益杰; 薛昌鸿; 南鹏杰
Original assignee: Wenzhou Ruirui Electric Co ltd
Current assignee: Ruirui Electric (Zhejiang) Co.,Ltd.
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-09-13
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a circuit breaker opening and closing rapid indicating mechanism convenient to install, which comprises a circuit breaker shell, an upper cover, a push rod structure and an indicating piece which is rotatably arranged at the bottom of the upper cover through a bracket component, wherein the push rod structure can be arranged in the circuit breaker shell in a reciprocating way; an elastic piece is arranged between the indicating piece and the support component, the push rod structure moves upwards to push the indicating piece to rotate to an opening indicating position when the contact structure is opened, and moves downwards to the side far away from the indicating piece when the contact structure is closed, so that the indicating piece reversely rotates to a closing indicating position under the driving of the elastic piece. By adopting the technical scheme, the indicating piece can be installed on the shell of the circuit breaker in one step along with the upper cover, the modular installation is realized, the installation is convenient and fast, the occupied space is small, the assembly efficiency is improved, the opening and closing indicating mechanism has high reliability, the indicating reaction speed is high, the indicating position is accurate, and the opening or closing state of the circuit breaker can be known.

Description

Circuit breaker opening and closing rapid indicating mechanism convenient to install

Technical Field

The utility model relates to a low-voltage apparatus technical field, concretely relates to install quick indicating mechanism of convenient circuit breaker divide-shut brake.

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 by arranging the opening and closing indicating device on the plastic shell type circuit breaker, so that the working state of the circuit breaker can be clearly judged when the circuit is checked, repaired and closed, and the circuit safety and the personnel safety are ensured.

Therefore, chinese patent document CN207517626U discloses a state indicating mechanism for switching on and off of a circuit breaker, which comprises a support arranged in a middle cover of the circuit breaker, and an indicating rocker arranged on the support in a rotating manner, wherein the support is provided with a mounting groove, a pin shaft is arranged in the mounting groove, the middle part of the indicating rocker is arranged on the pin shaft in a rotating manner, a torsion spring is sleeved on the pin shaft, two ends of the torsion spring respectively abut against the support and the indicating rocker, the support is provided with a microswitch electrically connected with a circuit board, a poking piece is arranged on the indicating rocker corresponding to the microswitch, the poking piece moves along with the indicating rocker and can poke a contact of the microswitch, an arc indicating piece is arranged at the upper end of the indicating rocker, the lower end of the indicating rocker penetrates through the middle cover of the circuit breaker to abut against a rotating shaft of the circuit breaker, and the lower end of the indicating rocker is provided with an arc contact part abutting against the rotating shaft. The rotating shaft pushes the indicating rocker to rotate when the brake is opened, so as to drive the arc-shaped indicating sheet to perform reciprocating switching.

As can be seen from the structure of the switching-on/off indication mechanism of the circuit breaker, the following problems still exist: the structural design of the indicating mechanism is complex, the indicating rocker is hinged on the support to form a physical leverage effect, the support is fixed on the middle seat, the bottom cambered surface of the indicating rocker is pushed through the rotating shaft to directly drive the arc indicating surface to swing, the swinging amplitude of the indicating rocker between the middle seat and the base is large, the installation and use space is large, the requirement on the assembling precision of the rotating shaft and the cambered surface is high, the assembling difficulty is large, the integral installation is complex, and the assembling efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming circuit breaker divide-shut brake indicating mechanism's among the prior art structure complicated, and installation usage space is big, and the integral erection is got up comparatively loaded down with trivial details, problem that assembly efficiency is low.

In order to solve the problems, the utility model provides a circuit breaker opening and closing rapid indicating mechanism which is convenient to install, which comprises a circuit breaker shell, an upper cover, an indicating piece and a push rod structure, wherein the upper cover is arranged on the upper part of the circuit breaker shell;

the indicating piece is rotatably arranged at the bottom of the upper cover through a support assembly, and the upper cover is provided with an indicating hole for displaying that the indicating piece is positioned at a switching-on or switching-off indicating position; the push rod structure is arranged in the breaker shell in a reciprocating manner, one end of the push rod structure is driven by a contact structure in the breaker shell, and the other end of the push rod structure extends out of the upper part of the breaker shell to be in matched contact with the indicating piece; an elastic piece is arranged between the indicating piece and the bracket component, and the elastic piece exerts a biasing force on the indicating piece to be pressed against the push rod structure; the push rod structure moves towards the indicating piece when the contact structure is in brake-off action, so that the indicating piece is driven by the push rod structure to rotate forwards to a brake-off indicating position; the push rod structure moves away from the indicating piece when the contact structure is switched on, so that the indicating piece reversely rotates to a switching-on indicating position under the driving of the elastic piece.

Preferably, the bracket assembly includes two bracket plates oppositely disposed at the bottom of the upper cover, and the indicator is rotatably connected between the two bracket plates through a rotating shaft.

As a preferred scheme, the rotating shaft part and the indicating part are fixedly connected or integrally formed, two rotating holes are correspondingly formed in the support plates, and two ends of the rotating shaft part, extending out of two sides of the indicating part, are respectively and rotatably connected into the two rotating holes.

As a preferred scheme, two be equipped with on the mounting panel and be used for the guide the pivot spare inserts guide structure in rotating the hole, guide structure is including setting up the direction inclined plane in two mounting panel one end respectively, and set up respectively on two mounting panel inside walls and extend the connection and be in guide inclined plane and the guide chute who rotates between the hole, it holds to rotate the hole and is located the one end of guide chute, the other end of guide chute extends to the mounting panel tip.

As a preferable scheme, the bottom of the indicator is provided with two contact surfaces extending at an included angle, and the other end of the push rod structure is opposite to one of the contact surfaces.

As a preferable scheme, an arc-shaped separating/combining indicating surface is arranged at the top of the indicating piece, and a movable gap is reserved between the indicating surface and the bottom of the upper cover.

As a preferable scheme, the elastic member is a torsion spring sleeved on the rotating shaft member, and the torsion spring includes a pressing portion which is in fit abutting connection with the other contact surface, and two clamping leg ends which are respectively extended and abutted on the two support plates.

As a preferred scheme, the upper portion of the circuit breaker shell forms a groove structure suitable for containing the indicating piece, a through hole for the push rod structure to extend out is formed in the groove structure, a limiting structure is arranged between the push rod structure and the through hole, the limiting structure comprises a limiting shaft arranged at the other end of the push rod structure in a penetrating mode and a limiting groove arranged at the upper end of the through hole, and the limiting shaft is in a limiting butt joint with the push rod structure towards the direction away from the indicating piece when the indicating piece moves in the limiting groove.

As a preferred scheme, the push rod structure is sleeved with a push rod spring, one end of the push rod is provided with a stop block boss matched with the contact structure, one end of the push rod spring abuts against the stop block boss, and the other end of the push rod spring abuts against an annular step formed at the lower end of the through hole.

As a preferred scheme, be provided with two first spacing bosss relatively on the inside wall of two mounting panels, the indicator both sides correspondence is provided with two spacing bosss of second with two spacing boss cooperations.

Compared with the prior art, the technical scheme of the utility model has the advantages that:

1. the utility model provides a quick indicating mechanism of circuit breaker divide-shut brake, pass through the bracket component with the indicator and rotate and set up in the upper cover bottom, as long as install circuit breaker casing top with the upper cover, can be at the indicator, form the transmission cooperation between push rod structure and the contact structure, therefore, the push rod structure shifts up when the contact structure separating brake moves and promotes the indicator and rotate to separating brake indicating position, be used for instructing the circuit breaker and be in the separating brake state, and move down towards keeping away from the indicator when the contact structure combined floodgate moves, make the indicator under the drive of elastic component reverse rotation to combined floodgate indicating position, be used for instructing the circuit breaker and be in combined floodgate state. The indicating piece designed in the way can be assembled with the upper cover in advance to form a whole, and the indicating piece is installed on the shell of the circuit breaker in one step along with the upper cover, so that the installation steps are simplified, the modularization and the integrated installation of the indicating piece can be realized, the installation is convenient and quick, the occupied space is small, the assembly difficulty is reduced, the installation and the maintenance are convenient, the assembly efficiency is improved, the opening and closing indicating mechanism is high in reliability, the indication response speed is high, the indicating position is accurate, the opening/closing indicating position of the indicating piece in the indicating hole can be observed, the circuit breaker can be known to be in an opening or closing state, and the use safety of a product is ensured.

2. The utility model provides a quick indicating mechanism for opening and closing of a circuit breaker, a rotating shaft piece which is rotatably connected in rotating holes of two support plates is arranged on an indicating piece, a guide inclined plane is respectively arranged on one end of the two support plates, and a guide sliding chute is arranged between the guide inclined plane and the rotating hole in an extending way, the structure is arranged, the two ends of the rotating shaft piece can be guided to be quickly arranged in the rotating holes through the matching of the guide inclined plane and the guide sliding chute, when in installation, only the two ends of the rotating shaft piece slide into the guide sliding chutes of the two support plates through the guide inclined plane and slide downwards along the guide sliding chute and are inserted into the rotating holes, the two support plates can be slightly elastically deformed by extrusion in the inserting process of a rotating shaft knot, thereby ensuring that the two ends of the rotating shaft piece can be quickly and accurately inserted into the rotating holes of the two support plates, the installation is convenient and quick, and the installation effect is improved, the rotating connection of the indicating piece and the two bracket plates is realized.

3. The utility model provides a quick indicating mechanism for opening and closing of a circuit breaker, the bottom of an indicating piece is provided with two contact surfaces extending in an included angle, an elastic piece is a torsion spring sleeved on a rotating shaft piece, one contact surface of the indicating piece is triggered and driven by a push rod structure, the other contact surface is abutted by the abutting part of the torsion spring, the structure pushes the indicating piece to overcome the biasing force of the torsion spring through the push rod structure to realize forward rotation when the circuit breaker is switched on, meanwhile, the indicator keeps contact and matching with the other end of the push rod structure under the action of biasing force, when the push rod starts to move away from the indicator, the indicator is driven by the torsion spring to automatically realize reverse rotation, therefore, the indicating part correspondingly switches the switching-off or switching-on indicating position in the indicating hole according to the switching-off or switching-on state of the circuit breaker, the matching transmission is reliable, and the indicating position is accurate.

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 cross-sectional structure view of the rapid switching-on/off indication mechanism of the circuit breaker provided by the utility model;

FIG. 2 is a schematic structural view of the structure of the indicator and the push rod of the present invention;

fig. 3 is a schematic view of the installation structure of the indicator on the upper cover according to the present invention;

fig. 4 is a schematic structural view of the bracket assembly of the present invention;

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

fig. 6 is an enlarged schematic structural view of the groove structure of the present invention;

description of reference numerals: 1. a circuit breaker housing; 2. an upper cover; 21. an indicator hole; 3. an indicator; 31. a shaft member; 32. a contact surface; 33. an indicating surface; 34. a first limit boss; 4. a bracket assembly; 41. a mounting plate; 42. rotating the hole; 43. a guide slope; 44. a guide chute; 45. a second limit boss; 5. an elastic member; 51. a pressing part; 6. a push rod structure; 61. a limiting shaft; 62. a boss of the stop block; 7. a push rod spring; 8. a groove structure; 81. a through hole; 82. a limiting groove.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. 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

The embodiment provides a circuit breaker opening and closing rapid indicating mechanism convenient to install as shown in fig. 1-6, which comprises a circuit breaker shell 1, an upper cover 2, an indicating piece 3 and a push rod structure 6, wherein the upper cover 2 is installed on the upper part of the circuit breaker shell 1;

the indicating part 3 is rotatably arranged at the bottom of the upper cover 2 through a support assembly 4, and the upper cover 2 is provided with an indicating hole 21 for displaying the indicating position of the indicating part 3 at a switching-on or switching-off position; the push rod structure 6 is arranged in the breaker shell 1 in a reciprocating manner, one end of the push rod structure is driven by a rotating shaft in the breaker shell 1, and the other end of the push rod structure extends out of the upper part of the breaker shell 1 and is in fit contact with the indicating piece 3; an elastic member 5 is arranged between the indicating member 3 and the bracket assembly 4, and the elastic member 5 applies a biasing force to the indicating member 3 to press against the push rod structure 6; the push rod structure 6 moves towards the indicating piece 3 when the rotating shaft is in brake-off action, so that the indicating piece 3 is driven by the push rod structure 6 to rotate forwards to a brake-off indicating position; the push rod structure 6 moves away from the indicating part 3 when the rotating shaft is switched on, so that the indicating part 3 reversely rotates to a switching-on indicating position under the driving of the elastic part 5. The contact structure comprises a driving rotating shaft rotatably arranged in the circuit breaker and a moving contact (the contact structure is not shown in the attached drawing) arranged on the driving rotating shaft, and one end of the push rod structure 6 can be matched and abutted against the driving rotating shaft or the moving contact.

The above-mentioned embodiment is the core technical scheme of this embodiment, and it sets up in the upper cover bottom to rotate through bracket component 4 according to indicator 3, as long as will upper cover 2 is installed 1 top of circuit breaker casing, can form the transmission cooperation between indicator 3, push rod structure 6 and the contact structure, consequently, push rod structure 6 shifts up when contact structure separating brake moves and promotes indicator 3 and rotate to separating brake indicating position for indicate the circuit breaker is in the separating brake state, and move down towards keeping away from indicator 3 when contact structure closing motion, make indicator 3 under the drive of elastic component 5 counter-rotation to closing indicating position, be used for indicating the circuit breaker is in the closing state, the separating and closing of visual indicator indicates that reaction rate is fast. By adopting the technical scheme, the indicating piece can be assembled with the upper cover in advance to form a whole, and can be arranged on the shell of the circuit breaker along with the upper cover 2 in one step, the installation steps are simplified, the modularization and the integrated installation of the indicating piece 3 can be realized, the installation is convenient and quick, the occupied space is small, the assembly difficulty is reduced, the installation and replacement operation of the indicating piece 3 or the push rod structure 6 is also convenient, the assembly efficiency is improved, the opening and closing indicating mechanism is high in reliability and accurate in indicating position, the opening/closing indicating position displayed by the indicating piece in the indicating hole can be observed, the circuit breaker can be known to be in an opening or closing state, and the use safety of a product is ensured.

The specific arrangement of the indicator will be described in detail below with reference to fig. 1-5:

the bracket assembly 4 comprises two bracket plates 41 oppositely arranged at the bottom of the upper cover 2, and the indicator 3 is rotatably connected between the two bracket plates 41 through a rotating shaft 31; pivot piece 31 with indicator 3 is fixed connection or integrated into one piece, two it is provided with two rotation holes 42 to correspond on the mounting panel 41, the both ends that pivot piece 31 stretches out indicator 3 both sides rotate respectively to be connected in two rotation holes 42, the rotation setting in upper cover 2 bottom is realized through the cooperation between pivot and two mounting panels 41 to indicator 3.

In order to facilitate the rapid installation of the two ends of the rotating shaft 31 into the two rotating holes 42, the two support plates 41 are provided with guide structures for guiding the rotating shaft 31 to be inserted into the rotating holes 42, each guide structure includes a guide inclined surface 43 respectively disposed on one end of each of the two support plates 41, and a guide sliding groove 44 respectively disposed on the inner side wall of each of the two support plates 41 and extending between the guide inclined surface 43 and the rotating hole 42, the rotating hole 42 is accommodated at one end of the guide sliding groove 44, and the other end of the guide sliding groove 44 extends to the end of the support plate 41. According to the structure, the two ends of the rotating shaft piece 31 can be guided to be rapidly installed in the rotating holes 42 through the matching of the guide inclined planes 43 and the guide sliding grooves 44, when the rotating shaft piece 31 is installed, as long as the two ends of the rotating shaft piece 31 slide into the guide sliding grooves 44 of the two support plates 41 through the guide inclined planes 43 and slide downwards along the guide sliding grooves 44 to be inserted into the rotating holes, the two support plates 41 are slightly elastically deformed by being extruded in the inserting process of the rotating shaft piece 31, and therefore the two ends of the rotating shaft piece 31 can be rapidly and accurately inserted into the rotating holes 42 of the two support plates 41, the installation is convenient and rapid, the installation efficiency is improved, and the rotating connection of the indicating piece and the two support plates is achieved.

As shown in fig. 5, two contact surfaces 32 extending at an included angle are provided at the bottom of the indicator 3, and the other end of the push rod structure 6 is disposed opposite to one of the contact surfaces 32, wherein an arc opening/closing indication surface 33 is provided at the top of the indicator 3, a movable gap is left between the indication surface 33 and the bottom of the upper cover 2, and when the indicator 3 rotates to an opening indication position, an opening indication mark on the indication surface 33 is displayed in the indication hole 21; similarly, when the indicator 3 rotates to the closing indication position, that is, the closing indication mark on the indication surface 33 is displayed in the indication hole 21, so as to remind the user of the opening/closing state of the circuit breaker. When a load end of the circuit breaker is short-circuited to generate a large current, an electric repulsive force is generated between the two contacts to quickly repel the moving contact under the action of the current and the contact structure due to the moving contact and the static contact, the speed is much higher than the speed of the tripping executing mechanism for pulling the moving contact to be disconnected, the opening speed of the circuit breaker is increased, the push rod structure can quickly act along with the moving contact, an opening/closing indicating surface on the indicating piece is driven to switch and display an opening state or a closing state in an indicating hole of the upper cover, and the opening/closing indicating speed is high.

As a preferred embodiment, the elastic member 5 is a torsion spring sleeved on the rotating shaft member 31, the torsion spring includes a pressing portion 51 engaged and abutted with the other contact surface 32, and two clamping leg ends respectively extended and abutted with the two support plates 41, in summary, in the above structure, one contact surface 32 of the indicating member 3 is triggered and driven by the push rod structure 6, and the other contact surface 32 is abutted by the pressing portion 51 of the torsion spring, in this structure, when the circuit breaker is closed, the push rod structure 6 pushes the indicating member 3 to overcome the biasing force of the torsion spring to realize forward rotation, and simultaneously, under the action of the biasing force, the indicating member 3 is kept in contact and fit with the other end of the push rod structure 6, and when the push rod starts to move away from the indicating member 3, the torsion spring drives the indicating member 3 to automatically realize reverse rotation, so that the indicating member 3 correspondingly switches to open or close in the indicating hole 21 according to the open or close state of the circuit breaker The brake indicates the position, and the cooperation transmission is reliable, and the instruction position is accurate.

In this embodiment, as shown in fig. 1 and fig. 6, a groove structure 8 suitable for accommodating the indicator 3 is formed on the upper portion of the circuit breaker housing 1, a through hole 81 is formed in the groove structure 8 and can be used for the push rod structure 6 to extend out, the circuit breaker housing 1 is composed of a base and a middle cover, the groove structure 8 is formed on the middle cover, a limiting structure is arranged between the push rod structure 6 and the through hole 81, the limiting structure comprises a limiting shaft 61 penetrating through the other end of the push rod structure 6 and a limiting groove 82 arranged at the upper end of the through hole 81, the limiting shaft 61 is abutted in the limiting groove 82 when the push rod structure 6 moves away from the indicator 3, so that the downward movement of the indicator is limited.

Further preferably, the push rod structure 6 is sleeved with a push rod spring 7, one end of the push rod is provided with a stop boss matched with the contact structure, one end of the push rod spring 7 abuts against the stop boss 62, the other end of the push rod spring 7 abuts against an annular step formed at the lower end of the through hole 81, so that the two ends of the push rod spring 7 are limited and mounted, the push rod spring 7 drives the push rod structure 6 to move downwards in the direction away from the indicating piece 3 when the contact structure is switched on, and therefore one end of the push rod structure 6 is reliably abutted against the contact structure and the matching transmission is reliable.

As shown in fig. 4-5, two first limiting bosses 34 are oppositely disposed on the inner side walls of the two support plates 41, and two second limiting bosses 45 matched with the two limiting bosses are correspondingly disposed on two sides of the indicator 3. The advantage of designing like this, the push rod structure 6 is towards the direction removal of keeping away from indicator 3 when the contact structure closes the floodgate action, and indicator 3 at this moment begins the antiport under the effect of elastic component 5, through the butt cooperation of second spacing boss 45 with first spacing boss 34 with limited indicator 3 antiport's stroke distance, just in time make indicator 3 rotate and reach the switching-on instruction position, show the switching-on instruction sign on the arc indicating surface in the instruction hole of upper cover to the user observes the operating condition of circuit breaker.

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

1. The utility model provides a quick indicating mechanism of convenient circuit breaker divide-shut brake of installation, includes circuit breaker casing (1), upper cover (2), indicator (3) and push rod structure (6), install in circuit breaker casing (1) upper portion upper cover (2), its characterized in that:

the indicating piece (3) is rotatably arranged at the bottom of the upper cover (2) through a support assembly (4), and the upper cover (2) is provided with an indicating hole (21) for displaying the indicating piece at a switching-on or switching-off indicating position; the push rod structure (6) is arranged in the breaker shell (1) in a reciprocating manner, one end of the push rod structure is driven by a contact structure in the breaker shell (1), and the other end of the push rod structure extends out of the upper part of the breaker shell (1) to be in fit contact with the indicating piece (3); an elastic piece (5) is arranged between the indicating piece (3) and the bracket component (4), and the elastic piece (5) exerts a biasing force on the indicating piece (3) and presses against the push rod structure (6); the push rod structure (6) moves towards the indicating piece (3) when the contact structure is in a brake-separating action, so that the indicating piece (3) is driven by the push rod structure (6) to rotate forwards to a brake-separating indicating position; the push rod structure (6) moves away from the indicating piece (3) when the contact structure is switched on, so that the indicating piece (3) rotates reversely to a switching-on indicating position under the driving of the elastic piece (5).

2. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 1, and is characterized in that: the bracket component (4) comprises two bracket plates (41) which are oppositely arranged at the bottom of the upper cover (2), and the indicating part (3) is rotatably connected between the two bracket plates (41) through a rotating shaft part (31).

3. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 2, and is characterized in that: pivot spare (31) with indicator (3) are fixed connection or integrated into one piece structure shaping, two it is provided with two rotation holes (42) to correspond on mounting panel (41), both ends that pivot spare (31) stretched out indicator (3) both sides rotate respectively and connect in two rotation holes (42).

4. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 3, characterized in that: two be equipped with on mounting panel (41) and be used for the guide pivot spare (31) inserts guide structure in rotating hole (42), guide structure is including setting up respectively at two mounting panel (41) one end on direction inclined plane (43), and set up respectively on two mounting panel (41) inside walls and extend the connection and be in direction inclined plane (43) and rotate guide chute (44) between hole (42), it is located to rotate hole (42) and hold the one end that is located guide chute (44), the other end of guide chute (44) extends to mounting panel (41) tip.

5. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 4, is characterized in that: the bottom of indicator (3) is provided with and is two contact surfaces (32) that the contained angle extends, the other end of push rod structure (6) and one of them contact surface (32) set up relatively.

6. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 5, characterized in that: the top of indicator (3) is provided with curved branch/close indicating surface (33), indicate surface (33) with leave the activity clearance between upper cover (2) bottom.

7. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 6, is characterized in that: the elastic piece (5) is a torsion spring sleeved on the rotating shaft piece (31), and the torsion spring comprises a pressing part (51) which is in matched abutting connection with the other contact surface (32) and two clamping foot ends which are respectively extended and abutted on the two support plates (41).

8. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to any one of claims 1 to 7, characterized in that: the circuit breaker casing (1) upper portion forms and is fit for holding groove structure (8) of indicator (3), be provided with in groove structure (8) and supply through-hole (81) that push rod structure (6) stretched out, push rod structure (6) with be provided with limit structure between through-hole (81), limit structure is including wearing to locate spacing axle (61) on the push rod structure (6) other end, and setting up spacing groove (82) of through-hole (81) upper end, spacing axle (61) are in push rod structure (6) are kept away from spacing butt is in when indicator (3) remove in spacing groove (82).

9. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to claim 8, characterized in that: the push rod structure (6) is sleeved with a push rod spring (7), one end of the push rod is provided with a stop block boss matched with the contact structure, one end of the push rod spring (7) abuts against the stop block boss (62), and the other end of the push rod spring abuts against an annular step formed at the lower end of the through hole (81).

10. The circuit breaker opening and closing rapid indicating mechanism convenient to install according to any one of claims 1 to 7, characterized in that: two first limiting bosses (34) are oppositely arranged on the inner side walls of the two support plates (41), and two second limiting bosses (45) matched with the two limiting bosses are correspondingly arranged on two sides of the indicating part (3).