CN220439532U - Electric operating mechanism of circuit breaker - Google Patents

Abstract

The utility model discloses an electric operating mechanism of a circuit breaker, which belongs to the technical field of piezoelectric devices and comprises a shell, a micro switch, a driving shaft, a hole cover and a padlock. The shell is used for being fixedly arranged on the circuit breaker; the micro switch is fixedly arranged in the shell; the driving shaft is rotationally connected with the shell, a shaft hole is formed in the driving shaft, and the driving shaft is used for driving the operating mechanism to switch on and off; the hole cover is rotationally connected with the shell; the padlock is connected with the shell in a sliding way. According to the electric operating mechanism of the circuit breaker, the operating mechanism is driven to break the brake through the driving shaft, the hole cover is rotated to enable the hole cover to shield the shaft hole, the hole cover is separated from the micro switch, so that other people are prevented from manually closing the brake, the padlock is slid to limit the hole cover to the shielding state position, and meanwhile, the padlock triggers the micro switch to disconnect the remote end, and further the situation that the operating mechanism of the circuit breaker is erroneously operated to cause closing is effectively avoided.

Description

Electric operating mechanism of circuit breaker

Technical Field

The utility model relates to the technical field of piezoelectric devices, in particular to an electric operating mechanism of a circuit breaker.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.

In the prior art, the opening and closing operations of the circuit breaker can be locally manually controlled or remotely controlled through an electric operating mechanism of the circuit breaker, so that automatic control is realized; and when the circuit is overhauled, an overhauling staff needs to break the brake of the circuit breaker and then can carry out overhauling work, the manual brake breaking operation is usually needed in the overhauling work, an electric operating mechanism of the circuit breaker after the manual brake breaking is used for switching off the motor by touching the micro switch through the rotary safety lock, the operation of a remote end is disconnected, and the remote end in an overhauling circuit of the overhauling staff is prevented from carrying out closing operation. However, the driving shaft hole after manual opening is in an open state, and other overhaulers may perform closing through misoperation of the driving shaft, so that safety accidents occur to the overhauling personnel of the line, and irrecoverable loss is caused.

Disclosure of Invention

The utility model aims to provide an electric operating mechanism of a circuit breaker, which can effectively avoid the situation of misoperation and closing of the circuit breaker.

To achieve the purpose, the utility model adopts the following technical scheme:

there is provided an electric operating mechanism of a circuit breaker, applied to the circuit breaker, the circuit breaker includes an operating mechanism, the electric operating mechanism of the circuit breaker includes:

the shell is used for being fixedly arranged on the circuit breaker;

the micro switch is fixedly arranged in the shell;

the driving shaft is rotationally connected with the shell, a shaft hole is formed in the driving shaft, and the driving shaft is used for driving the operating mechanism to switch on and off;

the hole cover is rotationally connected with the shell and is provided with a manual state position and a shielding state position through rotation;

a padlock slidably coupled to the housing, the padlock having a first state and a second state; wherein,

the manual state position is that the shaft hole is exposed out of the hole cover, and the hole cover triggers the micro switch;

the shielding state position is that the hole cover shields the shaft hole, and the hole cover is separated from the micro switch;

the first state position is that the hole cover can be switched back and forth between a manual state position and a shielding state position;

the second state position is that the padlock limits the hole cover at the shielding state position, and the padlock triggers the micro switch.

Optionally, one of the padlock and the hole cover is provided with a blocking groove, the other is provided with a stop block, the stop block is arranged in the blocking groove, and the padlock can stop the stop block through the groove wall of the blocking groove so as to limit the hole cover to the shielding state position.

Optionally, the hole cover includes a first triggering portion, where the first triggering portion is used to trigger the micro switch; and/or

The padlock comprises a second triggering part, and the second triggering part is used for triggering the micro switch.

Optionally, the hole cover is provided with a through hole, and the through hole can be coaxial with the driving shaft.

Optionally, a deflector rod is arranged on the hole cover and used for rotating the hole cover.

Optionally, the device further comprises a cover plate arranged on the shell, the hole cover is located between the cover plate and the shell, a limiting groove is formed in the cover plate, the deflector rod penetrates through the limiting groove, and the deflector rod protrudes out of the cover plate.

Optionally, the device further comprises a driving piece and a transmission assembly, wherein the driving piece and the transmission assembly are arranged on the shell, and the driving piece is used for driving the transmission assembly to drive the driving shaft to rotate.

Optionally, the transmission assembly includes a plurality of gears meshed in sequence, the gear of the first stage is connected with the driving member, and the gear of the final stage is connected with the driving shaft.

Optionally, the switch further comprises a sliding block, the sliding block is slidably arranged in the shell, the sliding block is used for being connected with the operating mechanism, the sliding block is connected with the driving shaft, and the driving shaft is used for driving the sliding block to drive the operating mechanism to switch on and switch off.

Optionally, a first limiting part is further arranged on the sliding block, the padlock is provided with a second limiting part, and when the circuit breaker is in a closing state through the sliding block, the first limiting part is abutted with the second limiting part so as to limit the padlock to the first state position.

The beneficial effects are that:

when an maintainer needs to overhaul the circuit breaker, the electric operating mechanism of the circuit breaker drives the operating mechanism to break the brake through the driving shaft; then, the hole cover is rotated to a shielding state position, so that the hole cover shields the shaft hole and is separated from the micro switch at the same time, and other people are prevented from being switched on manually; finally, the padlock is slid to the second state position, so that the padlock triggers the micro switch to disconnect the remote end while limiting the hole cover to the shielding state position, and further the situation that the operating mechanism of the circuit breaker is misoperation to switch on is effectively avoided, and the safety is improved. In addition, when the padlock is located in the first state position, the padlock can be switched between the manual state position and the shielding state position through the hole cover, so that the circuit breaker can rotate through the manual rotation driving shaft or the remote end control driving shaft, the purpose of opening and closing of the driving operation mechanism is achieved, the driving shaft rotation mode is controlled, and the safety is further improved.

Drawings

Fig. 1 is a schematic view of an electric operating mechanism of a circuit breaker according to the present utility model;

fig. 2 is a schematic view of another view angle structure of the electric operating mechanism of the circuit breaker provided by the utility model;

fig. 3 is a schematic view showing a state of a part of the structure of the electric operating mechanism of the circuit breaker according to the present utility model;

fig. 4 is another state schematic diagram of a part of the structure of the electric operating mechanism of the circuit breaker provided by the utility model;

fig. 5 is a schematic view of an electric operating mechanism of a circuit breaker according to the present utility model, in a view of a side of a housing facing the circuit breaker;

fig. 6 is a schematic view of a part of an electric operating mechanism of the circuit breaker when the circuit breaker is in a closed state;

fig. 7 is another schematic view of the electrically operated mechanism of the circuit breaker provided by the utility model from another perspective, the electrically operated mechanism being located on the side of the housing facing the circuit breaker;

fig. 8 is a schematic view of a part of the electric operating mechanism of the circuit breaker when the circuit breaker is in a breaking state;

FIG. 9 is a schematic view of a slider according to the present utility model;

fig. 10 is a schematic view showing still another state of a part of the structure of the electric operating mechanism of the circuit breaker provided by the present utility model;

fig. 11 is an exploded view of a part of the structure of the electric operating mechanism of the circuit breaker provided by the utility model;

fig. 12 is a schematic view of a padlock according to the present utility model;

FIG. 13 is an enlarged schematic view of a partial structure of a housing provided by the present utility model;

fig. 14 is a schematic view of still another view angle structure of the circuit breaker according to the present utility model, in which the electric operating mechanism of the circuit breaker is mounted on the circuit breaker.

In the figure:

10. a circuit breaker; 11. a handle;

100. a housing; 110. a guide protrusion; 111. a clamping groove; 112. a transition groove;

200. a micro-switch;

300. a drive shaft; 310. a shaft hole;

400. a hole cover; 410. a stop block; 420. a first trigger part; 430. a relief groove; 440. a through hole; 450. a deflector rod;

500. a padlock; 510. a second limit part; 520. a resisting groove; 530. a hanging hole; 540. a second trigger part; 550. a guide plate; 551. the clamping bulge;

610. a driving member; 620. a transmission assembly; 621. a gear; 630. a bracket; 640. a slide block; 641. pushing the hole; 642. a first limit part; 643. a transmission groove; 650. a connecting rod; 660. a rotating wheel; 670. a guide rod; 680. an elastic member;

700. a cover plate; 710. and a limit groove.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 to 4, the present embodiment provides an electric operating mechanism of a circuit breaker, which is applied to a circuit breaker 10.

Specifically, the circuit breaker 10 includes an operating mechanism, and the opening and closing of the circuit breaker 10 is achieved by toggling a handle 11 of the operating mechanism.

Specifically, the electric operating mechanism of the circuit breaker includes a housing 100, a micro switch 200, a driving shaft 300, a hole cover 400, and a padlock 500. Wherein, the casing 100 is used for being fixedly arranged on the circuit breaker 10; the micro switch 200 is fixedly arranged in the shell 100; the driving shaft 300 is rotatably connected with the shell 100, a shaft hole 310 is formed in the driving shaft 300, and the driving shaft 300 is used for driving the switching-on and switching-off of the operating mechanism; the hole cover 400 is rotatably connected with the housing 100; padlock 500 is slidably coupled to housing 100.

In this embodiment, the hole cover 400 is rotated to have a manual state position and a shielding state position, wherein the manual state position is that the shaft hole 310 is exposed out of the hole cover 400, and the hole cover 400 triggers the micro switch 200; the blocking state is that the hole cover 400 blocks the shaft hole 310, and the hole cover 400 is separated from the micro switch 200. Wherein the hole cover 400 in fig. 1 is in the manual state and the hole cover 400 in fig. 3 is in the shielding state.

In this embodiment, the padlock 500 is slid to have a first state and a second state, the first state being that the hole cover 400 can be reciprocally switched between a manual state and a blocking state; the second state position is that the padlock 500 limits the hole cover 400 to be at the shielding state position, and the padlock 500 triggers the micro switch 200. The padlock 500 limits the hole cover 400 to the blocking state, and it is understood that the padlock 500 stops the hole cover 400 from rotating toward the manual state. Wherein the padlock 500 of fig. 1 and 3 is in a first state and the padlock 500 of fig. 4 is in a second state.

In this embodiment, both the padlock 500 and the hole cover 400 trigger the same micro switch 200, so that the electric operating mechanism of the circuit breaker is compact, and the cost of components is reduced.

Illustratively, when an operator needs to service the circuit breaker 10, first, the operating mechanism is driven to open by the driving shaft 300; then, the hole cover 400 is rotated to a shielding state position, so that the hole cover 400 shields the shaft hole 310, and the hole cover 400 is separated from the micro switch 200 to prevent other people from closing the switch manually; finally, the padlock 500 is slid to the second state position, so that the padlock 500 triggers the micro switch 200 to disconnect the remote end while limiting the hole cover 400 to the shielding state position, thereby effectively avoiding the situation of closing caused by misoperation of the operating mechanism of the circuit breaker 10 and improving the safety. In addition, when the padlock 500 is in the first state, the hole cover 400 can be switched between the manual state and the shielding state, so that the circuit breaker 10 can rotate the driving shaft 300 manually or remotely, thereby achieving the purpose of opening and closing the driving operation mechanism, and the driving shaft 300 can be selectively controlled to rotate, so that the safety is further improved. The remote end may be a control host, which is not the focus of the present application, and is not described herein.

In this embodiment, referring to fig. 5, the electric operating mechanism of the circuit breaker further includes a driving member 610 and a transmission assembly 620 disposed on the housing 100, where the driving member 610 is used to drive the transmission assembly 620 to rotate the driving shaft 300. In this embodiment, when the micro switch 200 is not triggered by the hole cover 400 and the padlock 500, the driving member 610 is in signal connection with the remote end, and the driving member 610 is controlled by the remote end to drive the driving member 620 to drive the driving shaft 300 to rotate, so as to realize the opening and closing of the circuit breaker 10.

Specifically, the housing 100 is fixedly provided with a bracket 630, and the driving member 610 and the transmission assembly 620 are both disposed on the bracket 630, so as to ensure connection stability of the driving member 610 and the transmission assembly 620.

Illustratively, the driver 610 may be a servo motor. Of course, the driving member 610 may have other structures, which are not limited in this application.

In one possible embodiment, the transmission assembly 620 includes a plurality of gears 621 sequentially meshed, the first gear 621 is connected with the driving member 610, the last gear 621 is connected with the driving shaft 300, the structure is compact, the transmission ratio between the driving member 610 and the driving shaft 300 is improved, and the transmission precision between the driving member 610 and the driving shaft 300 is effectively ensured. Wherein the gear 621 of the final stage is disposed coaxially with the driving shaft 300. Of course, the transmission assembly 620 may have other structures, which are not limited in this application.

Specifically, to facilitate installation, and further ensure compactness, the driver 610 and the transmission assembly 620 are disposed on a side of the housing 100 facing the circuit breaker 10, and the micro switch 200, the hole cover 400, and the padlock 500 are disposed on a side of the housing 100 facing away from the circuit breaker 10. Further, the driving shaft 300 penetrates the housing 100.

In this embodiment, referring to fig. 5 to 9, the electric operating mechanism of the circuit breaker further includes a slider 640, the slider 640 is slidably disposed in the housing 100, the slider 640 is used for connecting the operating mechanism, and the slider 640 is connected with the driving shaft 300, and the driving shaft 300 is used for driving the slider 640 to drive the operating mechanism to switch on and off, so that the structure is simple and compact, and the installation is convenient.

Specifically, the slider 640 is provided with a pushing hole 641, and the handle 11 is inserted into the pushing hole 641, and pushes the handle 11 through the wall of the pushing hole 641 to complete the opening and closing operation of the operating mechanism.

Specifically, the slider 640 is further provided with a first limiting portion 642, and the padlock 500 is provided with a second limiting portion 510, and when the circuit breaker 10 is in the closed state through the slider 640, the first limiting portion 642 abuts against the second limiting portion 510 to limit the padlock 500 to the first state position. Limiting the padlock 500 in the first state is understood to mean that the stop padlock 500 slides towards the second state. In this embodiment, when the circuit breaker 10 is in a closed state, the driving member 610 and the remote end can be kept in signal connection according to actual usage conditions, and when an accident occurs, the remote end can control the driving member 610 to complete the opening action of the circuit breaker 10, and when the circuit breaker 10 is in a closed state, the first limiting portion 642 of the sliding block 640 stops the second limiting portion 510 of the padlock 500, so that the padlock 500 is limited to the first state position, and the padlock 500 is prevented from sliding to the second state position due to manual misoperation, thereby causing safety risk. In addition, when the slider 640 makes the circuit breaker 10 in the opening state, the padlock 500 can freely slide in the first state position and the second state position, and when maintenance is needed, the padlock 500 can slide to the second state position, at this time, the hole cover 400 shields the shaft hole 310, and the micro switch 200 is disconnected, so that the situation that the circuit breaker 10 is misoperated to be closed is effectively avoided.

In one possible embodiment, as shown in fig. 6, the electric operating mechanism of the circuit breaker further includes a link 650 and a rotating wheel 660, a first end of the link 650 is fixedly connected with the driving shaft 300, and the rotating wheel 660 is rotatably disposed at a second end of the link 650. Further, a transmission groove 643 is provided on the slider 640, and a roller is disposed in the transmission groove 643. The transmission groove 643 extends along a first direction, and a direction a in fig. 6 is the first direction. In the present embodiment, the driving shaft 300 rotates to drive the connecting rod 650 to rotate, so that the roller rolls in the transmission groove 643 and pushes the sliding block 640 to slide along the second direction, which has a simple structure and smooth movement, and avoids the occurrence of damage to the driving member 610 and the transmission assembly 620 caused by jamming. The direction b in fig. 6 is the second direction.

In one possible embodiment, as shown in fig. 7, the electric operating mechanism of the circuit breaker further includes at least one guide rod 670 fixed on the housing 100, and the guide rod 670 slides through the slider 640, so as to provide a sliding guide for the slider 640 along the second direction b, that is, to realize a sliding connection between the slider 640 and the housing 100, so as to facilitate assembly. Specifically, the housing 100 is fixedly coupled to the guide rod 670 through the bracket 630. Wherein the guide rod 670 may be fixed by a snap spring.

In one possible embodiment, as shown in fig. 7, an elastic member 680 is disposed between the slider 640 and the housing 100, and the elastic member 680 provides a tendency of the slider 640 to move in a direction of moving the operating mechanism to open the switch, so as to counteract a resistance of the transmission assembly 620 to the rotation of the driving shaft 300, so that the circuit breaker 10 can be automatically opened due to a short circuit or overload. Illustratively, the elastic member 680 may be a spring, and is sleeved on the guide rod 670.

In this embodiment, referring to fig. 10, one of the padlock 500 and the hole cover 400 is provided with a blocking groove 520, the other is provided with a stopper 410, the stopper 410 is disposed in the blocking groove 520, the padlock 500 can stop the stopper 410 by the groove wall of the blocking groove 520 to limit the hole cover 400 to a shielding state position, the structure is simple, batch manufacturing production is convenient, and the limitation of the padlock 500 to the hole cover 400 in the second state position is realized, so that the hole cover 400 keeps shielding the shaft hole 310. Preferably, a blocking groove 520 is formed on a side of the padlock 500 facing away from the housing 100, and a stopper 410 is disposed on a side of the hole cover 400 facing toward the housing 100, so as to ensure compactness of the structure. In addition, by setting the blocking groove 520 and the stopper 410, when the circuit breaker 10 is in the opening state, the padlock 500 slides to the second state position, and the hole cover 400 can be driven to rotate to the shielding state position, thereby further simplifying the operation.

Illustratively, the stop 410 may be cylindrical in shape.

Specifically, the padlock 500 is provided with a hanging hole 530, and the hanging hole 530 is used for penetrating the shackle of the lock head. In this embodiment, when the padlock 500 slides to the second state, the hanging hole 530 may penetrate the shackle of the lock, and by hanging the lock, the padlock 500 is prevented from being pushed back to the first state, so as to ensure safety. In addition, the operator can conveniently pull the padlock 500 through the hanging hole 530. Wherein the hanging hole 530 includes, but is not limited to, a waist hole, a round hole, or a square hole.

Specifically, the hole cover 400 includes a first triggering portion 420, and the first triggering portion 420 is used for triggering the micro switch 200, so as to ensure stability of triggering the micro switch 200 by the hole cover 400.

Specifically, the padlock 500 includes a second triggering portion 540, where the second triggering portion 540 is used to trigger the micro switch 200, so as to ensure stability of the padlock 500 for triggering the micro switch 200.

Further, the hole cover 400 is provided with a yielding groove 430 to yield the second triggering portion 540, so as to avoid interference with the padlock 500 when the first triggering portion 420 triggers the micro switch 200, and the structure is compact.

In one possible embodiment, the hole cover 400 is provided with a through hole 440, and the through hole 440 can be concentric with the driving shaft 300, i.e., the shaft hole 310 is exposed to the hole cover 400, and a key (not shown) can be guided to be inserted into the shaft hole 310 through the through hole 440. Wherein a key is used to screw the driving shaft 300.

In this embodiment, referring to fig. 11 to 13, two guide plates 550 are disposed on one side of the padlock 500 facing the housing 100, a guide groove is formed between the two guide plates 550, and a guide protrusion 110 slidably connected to the guide groove is disposed on the housing 100, so as to realize sliding limitation of the padlock 500. Illustratively, the guide groove and the guide protrusion 110 may be disposed to extend in the second direction.

In a possible embodiment, at least one clamping protrusion 551 is disposed on one side of one of the guide plates 550 facing the guide protrusion 110, at least one clamping groove 111 is disposed on the guide protrusion 110, and the padlock 500 is fixed in the first state position and the second state position by clamping the clamping protrusion 551 with the clamping groove 111. In this embodiment, the padlock 500 is fixed in the first state to prevent the padlock 500 from interfering with the rotation of the hole cover 400; the padlock 500 is fixed in the second state, so as to ensure the stability of the padlock 500 for triggering the micro switch 200 and limit the stability of the fixed hole cover 400 in the shielding state. In another possible embodiment, both guide plates 550 are provided with snap-in protrusions 551.

Illustratively, two clamping protrusions 551 are provided and are arranged at intervals along the second direction, two clamping grooves 111 are provided, and a transition groove 112 is provided between the two clamping grooves 111, when one of the clamping protrusions 551 is clamped with one of the clamping grooves 111, the other clamping protrusion 551 is placed in the transition groove 112, so as to prevent the guiding protrusion 110 from extruding the clamping protrusion 551 for a long time to reduce the service life. Illustratively, the width of the transition groove 112 along the second direction is greater than or equal to the clamping groove 111, so that the clamping protrusion 551 is more labor-saving when being separated from the clamping groove 111.

In this embodiment, referring to fig. 14, the electric operating mechanism of the circuit breaker further includes a cover plate 700 disposed on the housing 100, and the micro switch 200, the hole cover 400 and the padlock 500 are located between the cover plate 700 and the housing 100, and the cover plate 700 and the housing 100 form a seal to achieve a protection effect.

In one possible embodiment, the hole cover 400 is provided with a deflector 450, and the deflector 450 is used for rotating the hole cover 400, so that the operation is convenient. Specifically, the cover 700 is provided with a limiting slot 710, the lever 450 is threaded through the limiting slot 710, the limiting slot 710 is used for limiting the movement range of the lever 450, and the lever 450 protrudes from the cover 700, so as to further facilitate the rotation of the hole cover 400.

In one possible embodiment, a logo is provided on the cover plate 700 to facilitate identification of the location of the hole cover 400 and padlock 500.

Illustratively, the method of operation of the electrically operated mechanism of the circuit breaker is specifically:

firstly, when the circuit breaker 10 is in a closing state, the hole cover 400 is switched back and forth between a manual state position and a shielding state position by turning the poking rod 450, wherein the hole cover 400 is in the manual state position, the shaft hole 310 is exposed out of the hole cover 400, and the driving shaft 300 can be screwed by a key; the hole cover 400 is in the blocking state, the shaft hole 310 is blocked by the hole cover 400, and the driving shaft 300 can be driven to rotate by the remote end control driving member 610.

Secondly, when the breaker 10 is in the opening state, the padlock 500 is switched back and forth between the first state position and the second state position by pushing and pulling the hanging hole 530 of the padlock 500. Further, when the padlock 500 is in the first state position, the hole cover 400 can be switched back and forth between the manual state position and the shielding state position by turning the poking rod 450 to rotate the hole cover 400; when the padlock 500 is in the second state, the padlock 500 triggers the micro switch 200 to disconnect from the remote end, and the hole cover 400 shields the state, so as to avoid accidental closing of the circuit breaker 10 and ensure safety.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. An electric operating mechanism of a circuit breaker, applied to the circuit breaker (10), the circuit breaker (10) includes the operating mechanism, its characterized in that, the electric operating mechanism of the circuit breaker includes:

a housing (100) for being fixedly arranged on the circuit breaker (10);

the micro switch (200) is fixedly arranged in the shell (100);

the driving shaft (300) is rotationally connected with the shell (100), a shaft hole (310) is formed in the driving shaft (300), and the driving shaft (300) is used for driving the operating mechanism to be switched on and off;

a hole cover (400) rotatably connected with the housing (100), wherein the hole cover (400) is rotated to have a manual state position and a shielding state position;

a padlock (500) slidably coupled to the housing (100), the padlock (500) having a first state and a second state; wherein,

the manual state position is that the shaft hole (310) is exposed out of the hole cover (400), and the hole cover (400) triggers the micro switch (200);

the shielding state position is that the hole cover (400) shields the shaft hole (310), and the hole cover (400) is separated from the micro switch (200);

the first state position is that the hole cover (400) can be switched back and forth between a manual state position and a shielding state position;

the second state position is that the padlock (500) limits the hole cover (400) at the shielding state position, and the padlock (500) triggers the micro switch (200).

2. The electrically operated mechanism of a circuit breaker according to claim 1, characterized in that one of the padlock (500) and the hole cover (400) is provided with a retaining groove (520), the other is provided with a stopper (410), the stopper (410) is placed in the retaining groove (520), and the padlock (500) can stop the stopper (410) by a groove wall of the retaining groove (520) to restrict the hole cover (400) to the shielding state position.

3. The electric operating mechanism of a circuit breaker according to claim 1, characterized in that said hole cover (400) comprises a first triggering portion (420), said first triggering portion (420) being adapted to trigger said microswitch (200); and/or

The padlock (500) comprises a second triggering portion (540), wherein the second triggering portion (540) is used for triggering the micro switch (200).

4. The electric operating mechanism of a circuit breaker according to claim 1, characterized in that said hole cover (400) is provided with a through hole (440), said through hole (440) being concentric with said driving shaft (300).

5. The electric operating mechanism of the circuit breaker according to claim 1, characterized in that a lever (450) is provided on the hole cover (400), the lever (450) being used to rotate the hole cover (400).

6. The electric operating mechanism of a circuit breaker according to claim 5, further comprising a cover plate (700) disposed on the housing (100), wherein the cover plate (400) is disposed between the cover plate (700) and the housing (100), a limit groove (710) is disposed on the cover plate (700), the lever (450) is inserted into the limit groove (710), and the lever (450) protrudes from the cover plate (700).

7. The electrically operated mechanism of a circuit breaker according to any one of claims 1-6, further comprising a driving member (610) and a transmission assembly (620) disposed on the housing (100), wherein the driving member (610) is configured to drive the transmission assembly (620) to rotate the driving shaft (300).

8. The electrically operated mechanism of a circuit breaker according to claim 7, characterized in that said transmission assembly (620) comprises a plurality of gears (621) which are sequentially meshed, said gear (621) of the first stage being connected to said driving member (610), said gear (621) of the last stage being connected to said driving shaft (300).

9. The electric operating mechanism of a circuit breaker according to any one of claims 1-6, further comprising a slider (640), wherein the slider (640) is slidably disposed in the housing (100), the slider (640) is used for connecting the operating mechanism, and the slider (640) is connected to the driving shaft (300), and the driving shaft (300) is used for driving the slider (640) to drive the operating mechanism to open and close.

10. The electric operating mechanism of a circuit breaker according to claim 9, characterized in that said slider (640) is further provided with a first limit portion (642), said padlock (500) is provided with a second limit portion (510), said first limit portion (642) abutting against said second limit portion (510) to limit said padlock (500) to said first state position when said circuit breaker (10) is put in a closed state by said slider (640).