CN216624146U - Plug-in circuit breaker - Google Patents

Abstract

An insertion type circuit breaker comprises a shell, wherein an operating button is arranged at one end of the shell, the circuit breaker is switched on or switched off by pressing or pulling the operating button, an indicating lamp and a triggering part are arranged in the shell, the operating button is provided with a containing cavity and an indicating hole corresponding to the containing cavity, an indicating piece is rotatably assembled in the containing cavity and comprises an indicating part opposite to the indicating hole, a first pushing part and a light guiding part, the first pushing part and the light guiding part extend into the shell, the first pushing part is opposite to the triggering part, and the light guiding part is communicated with the indicating part; when the operating button is pressed or pulled, the indicating component moves synchronously along with the operating button, the light guide part is matched with the indicating lamp to enable the indicating part to feed back the state of the indicating lamp, and the triggering part is matched with the first pushing part to enable the indicating component to swing in the accommodating cavity to switch the indicating state of the indicating part. The operating button is provided with the indicating piece, and the indicating piece can swing along with the movement of the operating button, so that the operating button is suitable for the working environment with insufficient light.

Description

Plug-in circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus, in particular to a plug-in circuit breaker.

Background

The use of circuit breaker can effectively improve the security of electrical apparatus, in order to satisfy different electrical equipment's installation needs, along with electrical equipment's miniaturized development trend, the overall structure and the operation mode of the circuit breaker of adaptation all need further upgrade. The operating button of the existing circuit breaker can only indicate the state of the circuit breaker through a mechanical structure generally, and when the circuit breaker is in a working environment with insufficient light, the structure is not beneficial to observing the state of the circuit breaker.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the plug-in circuit breaker with simple structure and high reliability.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an insertion type circuit breaker comprises a shell, wherein a button hole is formed in one end of the shell, an operating button is assembled in the button hole in a sliding mode, the circuit breaker is switched on or switched off by pressing or pulling the operating button, the operating button is provided with an accommodating cavity and an indicating hole corresponding to the accommodating cavity, an indicating piece is assembled in the accommodating cavity in a rotating mode, the indicating piece comprises an indicating portion opposite to the indicating hole, a first pushing portion and a light guiding portion, the first pushing portion and the light guiding portion extend into the shell, and an indicating lamp and a triggering portion matched with the first pushing portion are arranged in the shell;

when the operating button is pressed or pulled, the indicating member moves synchronously with the operating button, the triggering part is matched with the first pushing part to enable the indicating member to swing so as to switch the indicating state of the indicating part, and the light guide part is matched with the indicating lamp to enable the indicating part to feed back the state of the indicating lamp.

Further, a control circuit board is arranged in the shell, a circuit breaker state indicating lamp is arranged on the control circuit board, and different areas of the light guide part are opposite to the indicating lamp through pressing or pulling the operating button.

Further, an indicator lamp is provided in the housing, and different regions of the light guide part are opposed to the indicator lamp by pressing or pulling an operation button.

Further, the indicating part is provided with different marks, and when the operating button is pressed or pulled, the swinging of the indicating piece enables the different marks to be respectively opposite to the indicating holes.

Further, the light guide part swings along with the indicator at one side of the indicator, and the plane where the swing track of the light guide part is located is parallel to the plane where the indicator is located.

Further, the indicating part includes the body of rod of leaded light, stretches into the holding chamber as the indicating part by the one end of the body of rod and is relative with the pilot hole, and the middle part both sides protrusion of the body of rod is provided with the pivot, by the adjacent one side body of rod lateral wall of pivot as leaning on the face the other end tip of the body of rod is equipped with the light guide part relative with the pilot lamp the protrusion is equipped with the boss structure as first promotion portion between light guide part and the pivot, first promotion portion lies in same one side with leaning on the face, and first promotion portion lies in the both sides of pivot respectively with leaning on the face.

Further, the light guide part comprises a light transmitting surface, a first reflecting surface and a second reflecting surface, the light transmitting surface is a side wall of the rod body facing the indicator lamp, the first reflecting surface and the second reflecting surface are arranged on the side wall of the rod body opposite to the light transmitting surface at intervals, the first reflecting surface is located between the second reflecting surface and the indicator part, and the first reflecting surface or the second reflecting surface is opposite to the indicator lamp respectively by pressing or drawing the operating button.

Furthermore, the first reflecting surface and the second reflecting surface are obliquely opposite to the indicating lamp, and the inclination angles of the first reflecting surface and the second reflecting surface are the same.

Further, the whole hollow body of rod that is of operating button, the cavity of the hollow body of rod is as holding the chamber, and the one end that the hollow body of rod stretches out the shell is sealed and is formed the operating surface the middle part of operating surface is equipped with the through-hole as instructing the hole, the one end that the hollow body of rod stretches into in the shell is equipped with and holds the breach of chamber intercommunication, the breach is located the hollow body of rod and is in the face of one side lateral wall that triggers the portion the lateral wall of the hollow body of rod is equipped with a pair of spread groove, the spread groove is located the both sides adjacent with the breach.

Further, the locking mechanism is further included, a locking hole is formed in the side wall of the shell, a second pushing portion is arranged on the operating button, the locking mechanism comprises a first locking piece and a second locking piece which are matched with each other, the first locking piece comprises a triggering portion, a first locking portion and an energy storage piece, the second locking piece comprises a second locking portion, the triggering portion is opposite to the operating button, the first locking portion and the second locking portion are opposite to the locking hole formed in the side wall of the shell,

when the switch is switched on, the second pushing part presses the triggering part to drive the first locking part to swing, so that the energy storage part is in limit fit with the first locking part and the second locking part respectively, and the first locking part and the second locking part are driven to extend out of the locking hole to store energy in the energy storage part;

when the brake is switched off, the energy storage part releases energy to drive the first locking part to swing back to drive the first locking part to retract into the shell, so that the energy storage part is respectively in limit fit with the shell and the second locking part, and the second locking part is kept extending out of the locking hole;

when the separating brake is unlocked, the energy storage piece is kept in limit fit with the shell and the second locking piece, and the first pushing part of the indicating piece presses the triggering part to drive the first locking piece to continuously swing back to drive the second locking piece, so that the second locking part retracts into the shell.

According to the plug-in circuit breaker, the indicating piece is assembled in the operating button, the indicating piece can be triggered to swing when moving synchronously with the operating button, the light guide part and the indicating lamp are matched to be in the state that the indicating part feeds back the indicating lamp through the movement of the indicating piece, the indicating state of the indicating part is switched through the swinging of the indicating piece, the plug-in circuit breaker can be suitable for the working environment with insufficient light, and meanwhile, the plug-in circuit breaker has the advantages of being simple in structure, few in adopted parts and low in cost.

In addition, the indicator possesses first reflection of light face, the second reflection of light face that the interval set up, makes the indicator when moving along with operating button, all has the reflection of light face that corresponds with the pilot lamp when two different positions, and especially first reflection of light face, the second reflection of light face all are relative with the pilot lamp slope, do benefit to the light propagation of pilot lamp, have improved and have instructed the accuracy.

In addition, the indicator light can be arranged on the control circuit board or directly arranged in the shell, and can be suitable for different circuit breakers.

In addition, the swing of the indicating piece is matched with the locking mechanism, the unlocking and locking operations of the locking mechanism are realized while the opening and closing of the circuit breaker are operated, and the circuit breaker unlocking and locking device has the advantages of simple structure and convenience in operation.

Drawings

FIG. 1 is a schematic view of the operation button and the locking mechanism of the present invention;

FIG. 2 is a schematic structural view of the operating button and the locking mechanism in the opening/unlocking state of the present invention;

FIG. 3 is a schematic structural diagram of the operating button and the locking mechanism in a closing state according to the present invention;

FIG. 4 is a schematic view of the structure of the operation button, the indicator and the indicator light of the present invention;

FIG. 5 is a schematic view of the locking mechanism of the present invention;

FIG. 6 is a schematic view showing the structure of an operation button according to the present invention;

FIG. 7 is a schematic view of the structure of the operation surface and the indicating hole in the present invention;

FIG. 8 is a schematic view of the construction of an indicator according to the present invention;

FIG. 9 is a schematic view of the construction of the first locking member of the present invention;

fig. 10 is a schematic structural view of the second locking member of the present invention.

Detailed Description

The following describes a plug-in circuit breaker according to an embodiment of the present invention with reference to the embodiments shown in fig. 1 to 10. A plug-in type circuit breaker of the present invention is not limited to the description of the following embodiments.

The utility model provides an insert circuit breaker, includes shell 1 the both ends of shell 1 are equipped with a pair of binding post, are equipped with operating device and contact mechanism between a pair of binding post, operating device is connected with the moving contact linkage of contact mechanism, and the static contact setting of contact mechanism is at the middle part of shell 1, moving contact, static contact are connected with a binding post electricity respectively, and the drive through operating device makes the moving contact move to the direction that is close to or keeps away from the static contact in order to realize the divide-shut brake of circuit breaker, is equipped with the explosion chamber on one side of contact mechanism, the explosion chamber is used for extinguishing the electric arc that produces when the contact mechanism divides the switch. The circuit breaker is characterized in that the shell 1 is provided with a button hole, an operating button 2 is assembled in the button hole, the operating button 2 extends into the shell 1 to be linked with an operating mechanism, and manual opening and closing of the circuit breaker are achieved through operation of the operating button 2.

The circuit breaker of this embodiment is preferably plug-in circuit breaker, and the binding post that sets up at shell 1 one end is plug connection's binding post, makes plug connection's binding post accomplish the wiring through plug circuit breaker, is equipped with another binding post and button hole at shell 1's the other end, and operating button 2 sliding assembly is downthehole at the button, and operating button 2's one end stretches into in the shell 1 and the operating device linkage, makes the circuit breaker by manual combined floodgate or separating brake through pressing or drawing operating button 2. Furthermore, a control circuit board 5 and a driving module controlled by the control circuit board 5 can be further arranged in the shell 1, the control circuit board 5 can analyze and process received signals, the control driving module is linked with the operating mechanism, and after the control circuit board 5 receives the control signals, the driving module is enabled to act by outputting action signals to the driving module so as to realize the automatic opening and closing of the circuit breaker. The driving module comprises a motor and a gear transmission mechanism driven by the motor, and the gear transmission mechanism is linked with the operating button 2 and/or the operating mechanism.

As shown in fig. 2, an improvement of the present application is that the operation button 2 is provided with a receiving cavity 21 and an indication hole 22 corresponding to the receiving cavity 21, an indication member 3 which can move along with the operation button 2 and can swing during the movement is arranged in the receiving cavity 21, an indication lamp 6 and a trigger part 411 for cooperating with a first pushing part 34 are arranged in the housing 1, the indication member 3 cooperates with the indication lamp 6 and the trigger part 411 arranged in the housing 1, the indication member 3 comprises an indication part 33 corresponding to the indication hole 22 and a first pushing part 34 and a light guide part 31 extending into the housing 1, the first pushing part 34 is opposite to the trigger part 411, the light guide part 31 communicates with the indication part 33, when the operation button 2 is pressed or pulled, the indication member 3 moves synchronously along with the operation button 2, the trigger part 411 cooperates with the first pushing part 34 to swing the indication member 3 in the receiving cavity 21 to switch the indication state of the indication part 33, the light guide unit 31 cooperates with the indicator lamp 6 to cause the indicator unit 33 to feed back the state of the indicator lamp 6.

The combined structure that the indicator 3 assembled in the accommodating cavity 21 can be triggered to swing when moving synchronously with the operation button 2 enables the light guide part 31 and the indicator lamp 6 to be matched into the state that the indicator part 33 feeds back the indicator lamp 6 through the movement of the indicator 3, and switches the indicating state of the indicator part 33 through the swing of the indicator 3, so that the combined structure can be applied to the working environment with insufficient light, and has the advantages of simple structure, few adopted parts and low cost.

As shown in fig. 4, the operation button 2 is parallel and opposite to a control circuit board 5 arranged in a housing 1, an indicator lamp 6 is arranged on the control circuit board 5, the indicator lamp 6 switches states according to the opening and closing states of the circuit breaker, for example, the circuit breaker is powered on when closed and powered off when opened, or the control circuit board 5 controls the indicator lamp 6 to switch states according to received signals, when the operation button 2 is pressed or pulled, an indicator 3 moving synchronously with the operation button 2 makes different areas of a light guide part 31 correspond to the indicator lamp 6, meanwhile, the indicator 3 is swung by the cooperation of the indicator 3 and a trigger part 411, so that an indicator part 33 switches parts corresponding to an indicator hole 22 to display different states of the circuit breaker, for example, the opening and closing states of the circuit breaker are indicated, whether the circuit breaker is in a locking state or not is indicated, and preferably, different marks are arranged on the indicator part 33, when the operation button 2 is pressed or pulled, the indicator 3 is swung so that different marks face the indication hole 22, and normally, the first mark and the second mark are provided in the indication portion 33, and when the operation button 2 is pressed, the indicator 3 is swung so that the first mark faces the indication hole 22, and when the operation button 2 is pulled, the indication portion 33 is swung so that the second mark faces the indication hole 22; the first mark and the second mark of the indicator 33 may indicate three states, for example, when the operation button 2 is pressed, the first mark faces the indicator hole 22, when the operation button 2 is pulled, the indicator hole 22 faces the position between the first mark and the second mark, and when the operation button 2 is further pulled, the second mark faces the indicator hole 22. Of course, when the control circuit board 5 is not provided in the housing 1, the indicator lamp 6 may be provided only in the housing 1, and the state of the circuit breaker may be displayed by the cooperation between the indicator lamp 6 and the indicator 3.

Further, the light guide portion 31 swings along with the indicator 3 on one side of the indicator 6, and a plane where the swing track of the light guide portion 31 is located is parallel to a plane where the indicator 6 is located, so that the distance between the light guide portion 31 and the indicator 6 is the same, which is beneficial for light transmission of the indicator 6, and certainly, when the plane where the swing track of the light guide portion 31 is located is not parallel to the plane where the indicator 6 is located, the distance between the light guide portion 31 and the indicator 6 changes, which may cause brightness difference of the indicator 33 when switching on and off.

Further, a second pushing portion 26 is protruded at one side of the operation button 2, the second pushing portion 26 is used for preventing the operation button 2 from being completely pulled out of the button hole, and at the same time, the second pushing portion 26 is also used for cooperating with the locking mechanism 4 provided at one side of the operation button 2.

As shown in fig. 2 and 3, a locking hole 12 is provided at one side of the housing 1, the locking hole 12 is located at one side wall of the housing 1 adjacent to the button hole, between said locking hole 12 and the operating button 2 is arranged a locking mechanism 4 cooperating with the cabinet (not shown), the locking mechanism 4 comprises a first locking member 41 and a second locking member 42 which are matched with each other, one end of the first locking member 41 is provided with a trigger part 411, the other end is provided with a first locking part 412, the first locking part 412 and the second locking part 422 of the second locking member 42 are opposed to the locking hole 12, the trigger 411 is engaged with the first pushing portion 34 of the indicator 3, so that when the operating button 2 is pressed and pulled, the indicator 3 is swung, of course, when the circuit breaker is not provided with the locking mechanism 4 engaged with the cabinet, the triggering portion 411 may be a boss structure provided on the inner wall of the housing 1.

So, the swing of indicator 3 mutually supports with locking mechanical system 4, realizes the unblock and the locking operation to locking mechanical system 4 when operating the circuit breaker divide-shut brake, makes the circuit breaker conveniently assemble on the rack, has simple structure and operates convenient advantage.

Another improvement point of the present application is that the locking mechanism 4 further includes an energy storage element 43, the second elastic arm of the energy storage element 43 is in limit fit with the second locking element 42, the first elastic arm of the energy storage element 43 is in limit fit with the first locking element 43 when opening and closing the brake, the first elastic arm of the energy storage element 43 is in limit fit with the housing 1 when opening and unlocking the brake, and when closing the brake, the operating button 2 drives the first locking element 41 to swing, so that the first locking portion 412 and the second locking portion 422 extend out of the locking hole 12, and the energy storage element 43 stores energy; during opening, the energy storage element 43 releases energy to drive the first locking element 41 to swing back, so that the first locking part 412 retracts into the housing 1; when the brake is unlocked, the operating button 2 is continuously pulled outwards in the brake-off state, the operating button 2 drives the first locking piece 41 to continuously swing back to drive the second locking piece 42, so that the second locking piece 422 retracts into the shell 1, the energy storage piece 43 stores energy again, when the next brake is switched on, the energy storage piece 43 firstly releases energy under the limit matching of the second locking piece 42 and the shell 1, and then stores energy under the matching of the first locking piece 41 and the second locking piece 42.

The method specifically comprises the following steps: during closing, the second pushing portion 26 presses the triggering portion 411, the first locking member 41 is driven to swing, the energy storage element 43 is disengaged from the limited fit with the housing 1, the energy storage element 43 is in limited fit with the first locking member 41 and the second locking member 42, and energy is stored in the energy storage element 43 when the first locking portion 412 and the second locking portion 422 extend out of the locking hole 12; during opening, after the second pushing portion 26 is separated from the triggering portion 411, the energy storage element 43 releases energy to drive the first locking element 41 to swing back, and the first locking portion 412 retracts into the housing 1, so that the energy storage element 43 is respectively in limit fit with the housing 1 and the second locking element 42, and the second locking portion 422 is kept extending out of the locking hole 12; when the brake is unlocked, when the first pushing part 34 presses the triggering part 411, the first locking part 41 and the energy storage part 43 are released from limiting fit, the energy storage part 43 keeps limiting fit with the housing 1 and the second locking part 42, the second locking part 42 is driven along with the continuous swinging back of the first energy storage part 41, the second locking part 422 retracts into the housing 1, and meanwhile, the second locking part 42 is matched with the housing 1 to store energy in the energy storage part 43; when the next switch-on is performed, along with the pressing of the operation button 2, the first pushing portion 34 is separated from the triggering portion 411 first, that is, before the second pushing portion 26 presses the triggering portion 411, the energy storage element 43 releases energy under the matching between the housing 1 and the second locking element 42 to drive the second locking element 42, during the action of the second locking element 42, the first locking element 41 can be driven to swing, and when the second pushing portion 26 presses the triggering portion 411, the first locking element 41 swings, so that the energy storage element 43 is in spacing matching with the first locking element 41.

Compare the complicated locking mechanical system 4 of current structure, this application is through setting up energy storage 43 between first locking piece 41 and second locking piece 42, the first elastic arm of energy storage 43 respectively with first locking piece 41 in the process of divide-shut brake and separating brake unblock process, shell 1 cooperation, release energy by energy storage 43 and drive first locking piece 41 and rock back, so at the separating brake in-process, operating button 2, indicator 3 all can not contact with locking mechanical system 4, when needs unblock locking mechanical system 4, operating button 2 need further be drawn under the separating brake state, through the action number of times that reduces second locking piece 42, mechanical wear to avoid locking mechanical system 4.

Of course, when the swing indicator 3 is not disposed in the operation button 2, the first pushing portion 34 and the second pushing portion 26 are disposed at an interval on the same side of the operation button 2, that is, the first pushing portion 34 and the second pushing portion 26 are disposed on a side of the operation button 2 facing the locking mechanism 4, the first pushing portion 34 and the second pushing portion 26 are preferably of a convex structure, and when the operation button 2 is pressed or pulled, the triggering portion 411 of the first locking member 41 moves between the first pushing portion 34 and the second pushing portion 26, so that when the operation button 2 is closed, opened, and opened, the operation button 2 is engaged with the locking mechanism 4.

The first elastic arm of energy storage piece 43 and the spacing cooperation of the first spacing groove 413 of setting on first locking piece 41, first spacing groove 413 is preferred open slot, so make first elastic arm and the spacing cooperation of the first spacing groove 413 separation in order to remove 41 of first elastic arm and first locking piece, be equipped with the protruding structure as spacing portion 11 in the inside wall of shell 1, spacing portion 11 supports with first elastic arm and leans on to realize spacing cooperation, removes spacing cooperation after first elastic arm separates with spacing portion 11, is equipped with on second locking piece 42 and keeps spacing complex second spacing groove 423 with second elastic arm.

Preferably, the energy storage element 43 is a torsion spring rotatably connected, the energy storage element 43, the first locking element 41 and the second locking element 42 rotate around the same rotation center, further, the first locking element 41, the second locking element 42 and the energy storage element 43 are coaxially and rotatably connected, and of course, as shown in fig. 1 to 3, the first locking element 41 and the energy storage element 43 are coaxially and rotatably installed, and the second locking element 42 is driven by the energy storage element 43, so that the whole locking mechanism 4 has the advantages of small volume, simple structure and small mechanical wear.

Preferably, a linkage structure which is mutually matched is further arranged between the first locking member 41 and the second locking member 42, when the first locking member 41 or the second locking member 42 is driven, the second locking member 42 or the first locking member 41 is driven through the linkage structure, the linkage structure comprises a matching portion 415 and a matching groove 421, wherein the matching portion 415 and the matching groove 421 can be in abutting matching, or can be in plug-in matching or other linkage matching forms. In the present embodiment, the fitting portion 415 is located on a side of the first locking portion 412 facing away from the locking hole 12, the fitting groove 421 is provided on a side of the second locking portion 422 facing the locking hole 12, and the fitting portion 415 and the fitting groove 421 adopt abutting fit. In addition, the linkage structure may also include only the engaging groove 421 provided on the second locking member 42, the engaging groove 421 is provided on the side of the second locking member 42 facing the locking hole 12, and the side facing away from the locking hole 12 by the first locking member 41 is in abutting engagement with the engaging groove 421. The first locking piece 41 and the second locking piece 42 are matched through a linkage structure, so that the matching degree of the first locking piece 41 and the second locking piece 42 can be improved, and the movement synchronism of the first locking piece 41 and the second locking piece 42 is more stable. Of course, the linkage structure between the first locking member 41 and the second locking member 42 is omitted, and the first locking member 41 and the second locking member 42 can be engaged with each other by abutting engagement of the side of the first locking member 41 facing away from the locking hole 12 and the side of the second locking member 42 facing the locking hole 12.

A preferred embodiment of the operating button 2 and locking mechanism 4 is provided in connection with fig. 1-10.

As shown in fig. 4, 6 and 7, the operation button 2 is integrally a hollow rod, the hollow part of the hollow rod is used as an accommodating cavity 21, one end of the hollow rod, which extends out of the housing 1, is sealed to form an operation surface 23, one edge of the operation surface 23 extends outwards to form a handle part beneficial to pressing or pulling, a through hole used as an indication hole 22 is arranged in the middle of the operation surface 23, and the inner diameter of the through hole is smaller than the inner diameter of the accommodating cavity 21; the lateral wall of the hollow body of rod is as glide plane and button hole sliding fit, and the one end that the hollow body of rod stretched into in the shell 1 is equipped with and holds the breach 25 of chamber 21 intercommunication, breach 25 is located the hollow body of rod and faces one side lateral wall of trigger portion 411, in fig. 6 breach 25 is located the one end edge of lateral wall on the hollow body of rod the lateral wall of the hollow body of rod is equipped with a pair of spread groove 24, spread groove 24 is located the both sides adjacent with breach 25, in this embodiment, spread groove 24 is the open slot, and its opening is linked together with breach 25, and indicator 3 rotates with operating button 2 through spread groove 24 and is connected. A second pushing portion 26 is arranged on one side of the hollow rod body, the second pushing portion 26 is matched with the triggering portion 411 of the first locking member 41, meanwhile, in the opening state, opening unlocking is performed by continuously pulling the operating button 2, the second pushing portion 26 is also used for preventing the operating button 2 from being completely pulled out of the button hole, and the second pushing portion 26 is located on the side wall of one side provided with the notch 25 in fig. 6. The second pushing portion 26 may also be connected to the circuit breaker operating mechanism, and may also drive the first locking member 41 to swing.

As shown in fig. 6 and 8, the indicating member 3 includes a light-guiding rod body, which is preferably made of a transparent material, one end of the rod body is used as an indicating portion 33 to extend into the accommodating cavity 21 to be opposite to the indicating hole 22, a first mark and a second mark are arranged on an end surface of the rod body at a side of the indicating portion 33 facing the indicating hole 22, a rotating shaft 32 is convexly arranged at two sides of the middle of the rod body, the rotating shaft 32 is rotatably connected with the connecting groove 24 of the operating button 2, a side wall of the rod body adjacent to the rotating shaft 32 is used as an abutting surface 35, the abutting surface 35 corresponds to the notch 25 of the operating button 2 for matching with the triggering portion 411, a light-guiding portion 31 opposite to the indicating lamp 6 is arranged at an end of the other end of the rod body, a boss structure used as a first pushing portion 34 is convexly arranged between the light-guiding portion 31 and the rotating shaft 32, the first pushing portion 34 is not on the same side wall as the rotating shaft 32, however, the first pushing portion 34 and the abutting surface 35 are located on the same side wall, and the first pushing portion 34 and the abutting surface 35 are located on two sides of the rotating shaft 32 respectively, at this time, the central axis of the rotating shaft 32 is perpendicular to the central axis of the first pushing portion 34, and in addition, the first pushing portion 34 and the second pushing portion 26 of the operation button 2 are located on the same side.

In this embodiment, the light guide part 31 includes a light transmitting surface 313, a first light reflecting surface 311, and a second light reflecting surface 312, where the light transmitting surface 313 is a sidewall of a rod facing the indicator 6, and the first light reflecting surface 311 and the second light reflecting surface 312 are disposed at an interval to the sidewall of the rod facing the light transmitting surface 313, where the first light reflecting surface 311 and the second light reflecting surface 312 may be formed by coating a light reflecting material, the first light reflecting surface 311 is located between the second light reflecting surface 312 and the indicator 33, that is, the first light reflecting surface 311 is disposed on an upper side of the second light reflecting surface 312, preferably, the first light reflecting surface 311 and the second light reflecting surface 312 are both obliquely opposite to the indicator 6, and the inclination angles of the first light reflecting surface 311 and the second light reflecting surface 312 are the same, so that light passing through the first light reflecting surface 311 and the second light reflecting surface 312 is reflected to the indicator 33 as much as possible. Specifically, when the operation button 2 is pressed, the first reflecting surface 311 faces the indicator lamp 6, and when the operation button 2 is pulled to enter the open/closed state, the second reflecting surface 312 faces the indicator lamp 6. Indicator 3 possesses first reflection of light face 311, the second reflection of light face 312 that the interval set up, makes indicator 3 when moving along with operating button 2, all has the reflection of light face that corresponds with pilot lamp 6 when closing a floodgate, separating brake unblock position, and especially first reflection of light face 311, second reflection of light face 312 all are relative with the slope of pilot lamp 6, do benefit to the light propagation of pilot lamp 6, have improved and have instructed the accuracy.

As shown in fig. 5, 9 and 10, the locking mechanism 4 includes a first locking member 41, a second locking member 42 and an energy storage member 43 which rotate coaxially around the same rotation center.

As shown in fig. 5 and 9, the first locking member 41 includes a connecting rod, a trigger portion 411 is formed by bending a first end of the connecting rod to one side, a shaft hole 414 is arranged at the joint of the triggering part 411 and the connecting rod, the first locking piece 41 is rotatably assembled in the shell 1 through the shaft hole 414, a convex structure is convexly arranged on one side of the trigger part 411 facing the second end of the connecting rod, a groove formed between the convex structure and the connecting rod is used as a first limiting groove 413, a first locking part 412 is formed by bending the second end of the connecting rod to the other side, wherein, the first locking part 412 is a block structure as a whole, the surface of the first locking part 412 is parallel to the side wall of the housing 1, that is, in fig. 9, the left and right sides of the first locking part 412 are parallel to the side walls of both ends of the housing 1, the upper and lower sides of the first locking part 412 are parallel to the upper and lower sides of the housing 1, and the front side of the first locking part 412 is parallel to the side wall of the housing 1 provided with the locking hole 12; the trigger portion 411 and the first locking portion 412 are reversely parallel to make the first locking member 41 be in a zigzag shape as a whole, a side wall of the connecting rod facing away from the locking hole 12 is used as a matching portion 415, the matching portion 415 and one side of the second locking member 42 facing the locking hole 12 are abutted and matched, in this embodiment, a matching groove 421 is formed in the second locking member 42, and the matching portion 415 and the matching groove 421 are abutted and matched to realize linkage.

As shown in fig. 10, the second locking member 42 includes a connecting block, a second limiting groove 423 is provided on a side surface of the connecting block facing away from the locking hole 12, the second elastic arm of the energy storage member 43 is in limiting fit with the second limiting groove 423, a boss structure as a second locking portion 422 is provided protruding from a side surface of the connecting block facing the locking hole 12, the boss structure has a slope 424 with a higher end and a lower end facing the locking hole 12, the front side is higher and the rear side is lower in fig. 10, the slope 424 is in sliding fit with one side edge of the locking hole 12 when the second locking portion 422 is extended out of the locking hole 12 or retracted into the housing 1, in fig. 2 or 3, the higher side of the slope 424 abuts against the left side edge of the locking hole 12 when the second locking portion 422 is extended out of the locking hole 12, and the right side edge of the locking hole 12 is in sliding fit with the slope 424 when the second locking portion 422 is retracted into the housing 1, the inclined surface 424 is matched with the edge of the locking hole 12 to slide, so that the extension locking hole 12 and the retraction housing 1 of the second locking part 422 are facilitated, the matching degree of the second locking part 422 and the locking hole 12 is improved, and the mechanical abrasion between the second locking part 422 and the locking hole 12 is reduced, in addition, in fig. 1-3, the left and right side walls of the second locking part 422 are almost attached to the left and right side walls of the locking hole 12, so that the action of extending the second locking part 422 out of the locking hole 12 and retracting the second locking part 422 into the housing 1 is sliding, but when the size of the second locking part 422 is obviously smaller than the aperture of the locking hole 12, the second locking part 422 is in a swinging process. An open groove is formed on one side of the second locking portion 422, i.e., on the left side of the second locking portion 422 in fig. 10, and the open groove serves as a matching groove 421 for abutting matching with a matching portion 415 on one side of the first locking member 41, which is opposite to the locking hole 12.

The energy storage part 43 is a torsion spring, the torsion spring comprises a rotating part, the rotating part is coaxially and rotatably connected with the first locking part 41, two ends of the rotating part respectively extend to form a first elastic arm and a second elastic arm, the first elastic arm is matched with a limiting part 11 (see fig. 1) arranged on the inner wall of the shell 1, and the second elastic arm is in limiting fit with the second locking part 42. Preferably, the first elastic arm passes through the first limiting groove 413 of the first locking member 41 to be matched with the limiting part 11, when the switch is closed, the first elastic arm of the energy storage element 43 passes through the first limiting groove 413 to abut against the limiting portion 11, and as the first locking element 41 is driven, the first locking element 41 pushes the first elastic arm to separate from the limiting portion 11 through the first limiting groove 413, during opening, the first locking member 41 swings back to make the first limiting groove 413 drive the first elastic arm to abut against the limiting portion 411 again, when the brake is unlocked, the first limiting groove 413 of the first locking member 41 is separated from the first elastic arm, and at the moment, the first elastic arm of the energy storage member 43 is limited and abutted against the limiting part 11 to realize limiting matching, so that the operating button 2 is not associated with the first locking member 41 or the second locking member 42 after being opened, thereby affecting the resetting of the operating button 2 and the mistaken unlocking of the locking mechanism.

In this embodiment, the second locking member 42 rotates around the same rotation center as the first locking member 41 through the energy storage member 43, so that the second locking member 42 indirectly rotates around the same rotation center as the first locking member 41 and the energy storage member 43, and of course, a shaft hole may be directly formed in the second locking member 42, so that the first locking member 41, the second locking member 42 and the energy storage member 43 are directly and coaxially connected in a rotating manner, or the rotation without the center is also applicable.

The process of matching the operation button 2 and the locking mechanism 4 in the present embodiment is as follows:

when the operating button 2 is pressed to close, and the operating button 2 drives the indicator 3 to perform linear motion (moving to the right in fig. 2, and the opening and unlocking state in fig. 2) towards the inside of the housing 1, along with the inward motion of the indicator 3, the first light reflecting surface 311 of the light guiding portion 31 is opposite to the indicator 6, and in the process of the inward motion of the indicator 3, the first pushing portion 34 which is originally abutted and matched is separated from the triggering portion 411, and at this time, the triggering portion 411 is matched with the abutting surface 35 of the indicator 3 to swing the indicator 3, so that the first mark (the first mark in this embodiment is a closing/locking mark) of the indicator 33 corresponds to the indicator hole 22, the first reflecting surface reflects the light of the indicator 6 to the indicator 33, that is, the state of the indicator 6 can be known from the indicator hole 22, and while the indicator 3 swings, the energy storage member 43 is released under the matching of the housing 1 and the second locking member 42 to drive the second locking member 42 and the first locking member 41 to swing, at this time, the first locking portion 412 does not extend out of the locking hole 12, the second locking portion 422 partially or completely extends out of the locking hole 12, the second pushing portion 26 is pressed on the triggering portion 411, so that the energy storage element 43 is in limit fit with the first limit groove 413 of the first locking element 41, when the second pushing portion 26 continues to press the triggering portion 411, the first limit groove 413 pushes the first elastic arm to separate the first elastic arm from the limit portion 11, and meanwhile, the energy storage element 43 drives the second locking element 42 to act and store energy for the energy storage element 43 until the first locking portion 412 and the second locking portion 422 completely extend out of the locking hole 12, at this time, the circuit breaker can be locked in fit with the cabinet, so that the circuit breaker in the closing state cannot be pulled out of the cabinet at will, or the circuit breaker in the closing state cannot be inserted into the cabinet.

When the operating button 2 is pulled to open the brake (not shown), the second pushing portion 26 is separated from the triggering portion 411, the abutting surface 35 is separated from the triggering portion 411, the first pushing portion 34 is contacted with the triggering portion 411, therefore, the indicating member 3 swings back, the second mark (in this embodiment, the second mark is in a brake-opening/unlocking state) corresponds to the indicating hole 22, the indication switching is completed for indicating the brake opening, but as the indicating member 3 moves up along with the operating button 2, the first light reflecting surface 311 of the light guiding portion 31 is separated from the indicating lamp 6 and the second light reflecting surface 312 is not opposite to the indicating lamp 6, meanwhile, the energy storing member 43 releases energy, the first elastic arm drives the first locking member 41 to swing back into the housing 1 through the first limiting groove 413, the first elastic arm is in limiting fit with the limiting portion 11, at this time, the fitting portion 415 is only contacted with the fitting groove 421, and no mutual acting force exists between the two.

After opening, the operating button 2 is continuously pulled to enter an opening unlocking state, the operating button 2 drives the indicator 3 to perform linear motion (moving to the left in fig. 3, and the closing state in fig. 3), along with the outward motion of the indicator 3, the second light reflecting surface 312 of the light guide part 31 is opposite to the indicator 6, in the process of the outward motion of the indicator 3, the first pushing part 34 is in abutting fit with the triggering part 411, so that the indicator 3 and the first locking part 41 swing back simultaneously, wherein the indicator 3 continuously swings back on the basis of the opening state to enable the indicator 33 to keep the second mark corresponding to the indicator hole 22, the second reflecting surface reflects the light of the indicator 6 to the indicator 33, namely, the state of the indicator 6 can be obtained from the indicator hole 22, and the second mark corresponds to different states of the indicator 6 when the opening and the opening are unlocked to distinguish the opening, the closing and the closing, The state of opening and unlocking; in the process of swinging back, the first locking member 41 retracts the first locking portion 412 and the second locking portion 422 into the housing 1 through the abutting action of the matching portion 415 and the matching groove 421 (the inclined surface 424 of the second locking portion 422 is in sliding fit with the right edge of the locking hole 12), the energy storage member 43 stores energy under the limiting fit of the limiting portion 11 and the second limiting groove 423, and at the moment, the circuit breaker and the cabinet are unlocked and can be pulled out.

It should be noted that the status of the indicator light 6 in switching on and switching off may be different, for example, green is displayed in switching on, red is displayed in switching off, the light of the indicator light 6 passes through the light-transmitting surface 313 and is reflected to the indicating portion 33 through the first light-reflecting surface 311 or the second light-reflecting surface 312, when the color of the indicating portion 33 corresponding to the indicating hole 22 is green, indicating switching on is indicated, at this time, the first mark of the indicating portion 33 corresponds to the indicating hole 22, indicating that the locking mechanism 4 is in the locked state, when the color of the indicating portion 33 corresponding to the indicating hole 22 is red, and when the color of the indicating portion 22 corresponds to the second mark in the indicating hole 22, indicating that the circuit breaker has been switched off, and when the switching off is unlocked, the indicating portion 33 displays red and the brightness of the second mark corresponding to the indicating hole 22 is higher. Of course, the indication part 33 may be correspondingly provided with marks such as characters, patterns or colors as the first mark and the second mark, and the corresponding marks are matched with the indicator lamp 6 together by swinging the indicator 3; in addition, the indicator lamp 6 may only have one normally bright color, different marks are provided as the first mark and the second mark in the indicator portion 33, when the switch is turned on, the first mark is exposed out of the indicator hole 22 by the swing of the indicator 3, the first mark is illuminated by the light reflected by the first light reflecting surface 311 toward the indicator portion 33, when the switch is turned off, the position corresponding to the second mark is determined, and since the indicator lamp 6 is not directly opposite to the first light reflecting surface 311 and the second light reflecting surface 312, the brightness is low, when the switch is turned off, the indicator 3 swings back to keep the second mark opposite to the indicator hole 22, the light reflected by the second light reflecting surface 312 toward the indicator portion 33 illuminates the second mark, and the brightness of the second mark is higher than that when the switch is turned off.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims (10)

1. A plug-in circuit breaker comprises a shell (1), wherein one end of the shell (1) is provided with a button hole, an operating button (2) is assembled in the button hole in a sliding mode, and the circuit breaker is switched on or switched off by pressing or pulling the operating button (2), and the plug-in circuit breaker is characterized in that: the operating button (2) is provided with an accommodating cavity (21) and an indicating hole (22) corresponding to the accommodating cavity (21), an indicating piece (3) is rotatably assembled in the accommodating cavity (21), the indicating piece (3) comprises an indicating part (33) opposite to the indicating hole (22), a first pushing part (34) and a light guide part (31) extending into the shell (1), and an indicating lamp (6) and a triggering part (411) matched with the first pushing part (34) are arranged in the shell (1);

when the operating button (2) is pressed or pulled, the indicating piece (3) moves synchronously with the operating button (2), the triggering part (411) is matched with the first pushing part (34) to enable the indicating piece (3) to swing so as to switch the indicating state of the indicating part (33), and the light guide part (31) is matched with the indicating lamp (6) to enable the indicating part (33) to feed back the state of the indicating lamp (6).

2. A plug-in circuit breaker as claimed in claim 1, characterized in that: the circuit breaker is characterized in that a control circuit board (5) is arranged in the shell (1), an indicator lamp (6) used for indicating the state of the circuit breaker is arranged on the control circuit board (5), and different areas of the light guide part (31) are opposite to the indicator lamp (6) through pressing or pulling the operating button (2).

3. A plug-in circuit breaker as claimed in claim 1, characterized in that: an indicator lamp (6) is provided in the housing (1), and different regions of the light guide section (31) are opposed to the indicator lamp (6) by pressing or pulling the operation button (2).

4. A plug-in circuit breaker as claimed in claim 1, characterized in that: the indicating part (33) is provided with different marks, and when the operating button (2) is pressed or pulled, the swinging of the indicating piece (3) enables the different marks to be respectively opposite to the indicating holes (22).

5. A plug-in circuit breaker as claimed in claim 1, characterized in that: the light guide part (31) swings at one side of the indicator lamp (6) along with the indicator piece (3), and the plane where the swing track of the light guide part (31) is located is parallel to the plane where the indicator lamp (6) is located.

6. A plug-in circuit breaker as claimed in claim 1, characterized in that: the indicating part (3) comprises a light-guiding rod body, one end of the rod body is used as an indicating part (33) to stretch into the accommodating cavity (21) and is opposite to the indicating hole (22), rotating shafts (32) are arranged on two sides of the middle of the rod body in a protruding mode, the side wall of the rod body on one side adjacent to each rotating shaft (32) is used as a supporting surface (35), a light guide part (31) opposite to the indicating lamp (6) is arranged at the end part of the other end of the rod body, a boss structure used as a first pushing part (34) is arranged between the light guide part (31) and the rotating shafts (32) in a protruding mode, the first pushing part (34) and the supporting surface (35) are located on the same side, and the first pushing part (34) and the supporting surface (35) are located on two sides of the rotating shafts (32) respectively.

7. A plug-in circuit breaker as claimed in claim 6, characterized in that: the light guide part (31) comprises a light transmitting surface (313), a first light reflecting surface (311) and a second light reflecting surface (312), the light transmitting surface (313) is a side wall of the rod body facing the indicator lamp (6), the first light reflecting surface (311) and the second light reflecting surface (312) are arranged on the side wall of the rod body opposite to the light transmitting surface (313) at intervals, the first light reflecting surface (311) is located between the second light reflecting surface (312) and the indicating part (33), and the first light reflecting surface or the second light reflecting surface (312) is opposite to the indicator lamp (6) through pressing or pulling the operating button (2).

8. A plug-in circuit breaker as claimed in claim 7, characterized in that: the first light reflecting surface (311) and the second light reflecting surface (312) are obliquely opposite to the indicator light (6), and the oblique angles of the first light reflecting surface (311) and the second light reflecting surface (312) are the same.

9. A plug-in circuit breaker as claimed in claim 1, characterized in that: operating button (2) wholly is the hollow body of rod, the hollow part of the hollow body of rod is as holding chamber (21), and the one end that the hollow body of rod stretches out shell (1) is sealed and is formed operation face (23) the middle part of operation face (23) is equipped with the through-hole as instructing hole (22), the one end that the hollow body of rod stretches into in shell (1) is equipped with and holds breach (25) of chamber (21) intercommunication, breach (25) are located the one side lateral wall of the hollow body of rod in the face of trigger portion (411) the lateral wall of the hollow body of rod is equipped with a pair of spread groove (24), spread groove (24) are located the both sides adjacent with breach (25).

10. A plug-in circuit breaker as claimed in claim 1, characterized in that: the locking mechanism (4) is further included, a locking hole (12) is formed in the side wall of the shell (1), a second pushing portion (26) is formed in the operating button (2), the locking mechanism (4) comprises a first locking piece (41) and a second locking piece (42) which are matched with each other, the first locking piece (41) comprises a triggering portion (411), a first locking portion (412) and an energy storage piece (43), the second locking piece (42) comprises a second locking portion (422), the triggering portion (411) is opposite to the operating button (2), the first locking portion (412) and the second locking portion (422) are opposite to the locking hole (12) formed in the side wall of the shell (1),

when the switch is switched on, the second pushing part (26) presses the triggering part (411) to drive the first locking part (41) to swing, so that the energy storage part (43) is respectively in limit fit with the first locking part (41) and the second locking part (42), and the first locking part (412) and the second locking part (422) are driven to extend out of the locking hole (12) to enable the energy storage part (43) to store energy;

during opening, the energy storage part (43) releases energy to drive the first locking part (41) to swing back to drive the first locking part (412) to retract into the shell (1), so that the energy storage part (43) is respectively in limit fit with the shell (1) and the second locking part (42), and the second locking part (422) keeps extending out of the locking hole (12);

when the brake is unlocked, the energy storage piece (43) keeps in limit fit with the shell (1) and the second locking piece (42), and the first pushing part (34) of the indicating piece (3) presses the triggering part (411) to drive the first locking piece (41) to continuously swing back to drive the second locking piece (42) so that the second locking part (422) retracts into the shell (1).

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