Actuating mechanism and circuit breaker

Abstract

The invention provides an execution mechanism and a circuit breaker, and relates to the technical field of low-voltage electrical appliances, the execution mechanism comprises a shell, and a gear set and a handle transmission member which are arranged in the shell, the handle transmission member is engaged with the gear set, the gear set comprises a plurality of gears which are engaged with each other, and the outer wall of the shell is also connected with a release clamping member. The releasing and clamping piece comprises an ejector rod and a driving part, the driving part is exposed through the outer wall, and the driving part is driven to drive the ejector rod to abut against the side face of a first gear in the gear set and enable the ejector rod to move axially so as to relieve meshing between the first gear and other gears or meshing between the first gear and the handle transmission piece and release clamping. According to the execution mechanism and the circuit breaker, the problem that in the prior art, gear sets are not easy to release after being clamped or the gear sets and a handle are clamped can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of low-voltage electrical apparatus, in particular to an actuator and a circuit breaker. BACKGROUND

[0002] The circuit breaker refers to a switching device capable of opening and closing, carrying and opening and closing the current under normal loop conditions, and capable of closing, carrying and opening and closing the current under abnormal loop conditions within a specified time. With the rapid development of power and communication technologies in China, higher and higher requirements for the practicability, safety and reliability of terminal electrical apparatus such as circuit breakers are put forward, and the traditional circuit breaker has far failed to meet these requirements. In continuous research and development, the circuit breaker has reached a new level in miniaturization, intelligence and reliability, and many new designs have emerged, such as intelligent circuit breakers. The intelligent circuit breaker uses microcontrollers, Internet of Things technology and new detectors to establish a new secondary system of the circuit breaker, which has been gradually applied to smart parks, smart power utilization and many other aspects.

[0003] At present, the actuator of the intelligent circuit breaker adopts a motor positive and negative rotation driving speed reduction gear set to drive a handle to open and close. The speed reduction gear set includes multiple gears that are engaged in sequence. Specifically, the driving shaft of the motor is connected with the speed reduction gear set to drive the handle to open and close, and the handle is connected with an operating mechanism to drive the operating mechanism to realize the opening and closing of the circuit breaker. The actuator may be stuck during operation. When the speed reduction gear set is stuck or the speed reduction gear set and the handle are stuck, the stuck gears can only be released by disassembling the circuit breaker, which is troublesome and time-consuming. SUMMARY

[0004] The present application aims to solve the problem that the gears are not easy to release after being stuck in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solutions adopted by the embodiments of the present application are as follows:

[0006] In one aspect of the embodiments of the present application, an actuator is provided, which includes a housing, a gear set and a handle transmission member arranged in the housing, the handle transmission member is engaged with the gear set, the gear set includes multiple gears that are engaged with each other, the outer wall of the housing is further connected with a release stuck member, the release stuck member includes a top rod and a driving part, the driving part is exposed outside the outer wall, the driving part is driven to drive the top rod to abut against the side surface of a first gear in the gear set and make it move along the axial direction, so as to release the engagement between the first gear and other gears or the engagement between the first gear and the handle transmission member, and release the stuck.

[0007] As an implementable mode, the top rod abuts against the first side of the first gear, and the first elastic member is arranged between the housing and the second side of the first gear, so as to drive the first gear to move along the axial direction of the first gear and reengage with other gears or the handle transmission member after the stuck state is released.

[0008] As an implementable mode, the second elastic member is arranged between the stuck releasing member and the housing, so as to drive the stuck releasing member to reset after the stuck state is released.

[0009] As an implementable mode, the driving part drives the top rod to rotate in a plane perpendicular to the rotating surface of the first gear, so that the end of the top rod contacts and abuts against the first gear.

[0010] As an implementable mode, the driving part is provided with a groove on the side away from the top rod, the driving part extends into the groove and drives the driving part to rotate.

[0011] As an implementable mode, the driving part is further provided with a limiting member on the side close to the top rod, the limiting member protrudes from the driving part, and the second elastic member is arranged between the limiting member and the housing.

[0012] As an implementable mode, the stuck releasing member further comprises a connecting rod connecting the top rod and the driving part, the connecting rod is perpendicular to the top rod, and the length of the top rod is greater than the distance between the connecting rod and the first gear.

[0013] As an implementable mode, the top rod extends along the axial direction of the first gear, and the driving part comprises a pressing part, the pressing part is pressed to move the end of the top rod towards the first gear and push the first gear to move along the axial direction of the first gear.

[0014] As an implementable mode, the end of the top rod is provided with a hanging column, the second elastic member is a tension spring, one end of the tension spring is hung on the hanging column, and the other end is fixedly connected with the housing.

[0015] As an implementable mode, an expansion part is arranged between the pressing part and the top rod, the expansion part protrudes from the pressing part in a direction perpendicular to the movement direction of the top rod, so that the expansion part abuts against the inner wall of the housing.

[0016] In another aspect of the embodiments of the present application, a circuit breaker is provided, which comprises the above-mentioned actuator, a motor arranged in the housing of the actuator, and a handle connected with the handle transmission member of the actuator, the motor is connected with the gear set of the actuator to drive the gear set to rotate.

[0017] The beneficial effects of the present application include:

[0018] The application provides an actuating mechanism, which comprises a shell, a gear set arranged in the shell and a handle transmission part, the handle transmission part is engaged with the gear set, the gear set comprises a plurality of gears engaged with each other, an external wall of the shell is further connected with a release jamming part, the release jamming part comprises a top rod and a driving part, the driving part is exposed outside the external wall, the driving part is driven to drive the top rod to abut against a side surface of a first gear in the gear set and make the first gear move axially, so as to release the engagement between the first gear and other gears or the engagement between the first gear and the handle transmission part, and release the jamming, so that the driving part of the release jamming part outside the shell is driven, and the first gear moves axially, so that the clamping teeth on the outside of the first gear are dislocated from the teeth of the adjacent gear or the handle transmission part, and the jamming is released. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 One of the structural schematic diagrams of the actuating mechanism provided by the embodiments of the application;

[0021] Figure 2 One of the state diagrams of the actuating mechanism provided by the embodiments of the application;

[0022] Figure 3 The second state diagram of the actuating mechanism provided by the embodiments of the application;

[0023] Figure 4 One of the structural schematic diagrams of the release jamming part provided by the embodiments of the application;

[0024] Figure 5 The installation structural schematic diagram of the release jamming part provided by the embodiments of the application;

[0025] Figure 6 The second structural schematic diagram of the actuating mechanism provided by the embodiments of the application;

[0026] Figure 7 One of the state schematic diagrams of the release jamming part provided by the embodiments of the application;

[0027] Figure 8 The third structural schematic diagram of the actuating mechanism provided by the embodiments of the application;

[0028] Figure 9 A state diagram of an actuator provided for an embodiment of the present application III;

[0029] Figure 10 A state diagram of an actuator provided for an embodiment of the present application IV;

[0030] Figure 11 A structure diagram of a stuck release provided for an embodiment of the present application II;

[0031] Figure 12 A structure diagram of an actuator provided for an embodiment of the present application IV;

[0032] Figure 13 A state diagram of a stuck release provided for an embodiment of the present application II.

[0033] Fig. 1: 100-actuator; 110-housing; 120-gear set; 122-first gear; 121-second gear; 123-third gear; 130-handle transmission; 140-stuck release; 141-top rod; 142-driving part; 143-connecting rod; 144-groove; 145-pressing part; 146-hanging column; 147-expanding part; 151-first elastic part; 152-second elastic part; 210-motor. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. It should be noted that, in the case of no conflict, each feature in the embodiments of the present application can be combined with each other, and the combined embodiment is still within the protection scope of the present application.

[0036] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] In one aspect of the embodiment of the present application, Figure 1 and Figure 8 As shown, an actuator 100 is provided, including a housing 110 and a gear set 120 and a handle transmission member 130 arranged in the housing 110. The handle transmission member 130 is engaged with the gear set 120. The gear set 120 includes a plurality of gears that are engaged with each other. The outer wall of the housing 110 is also connected to a release locking member 140. The release locking member 140 includes a push rod 141 and a driving part 142. The driving part 142 is exposed through the outer wall. The driving part 142 is driven to drive the push rod 141 to abut against the side surface of the first gear 122 in the gear set 120 and make it move axially ( Figure 1 The first gear 122 is moved in the direction A in the figure to release the meshing between the first gear 122 and other gears or the meshing between the first gear 122 and the handle transmission member 130, thereby releasing the stuck state.

[0040] The actuator 100 provided in the embodiment of the present application is applied to an intelligent circuit breaker. The intelligent circuit breaker includes a motor 210 connected to an external control signal. The motor 210 receives the control rotation of the external control signal and drives the handle transmission member 130 to rotate through the gear set 120, thereby driving the handle and the operating mechanism to open and close the circuit breaker, so as to open and close the intelligent circuit breaker and realize the control of the intelligent circuit breaker.

[0041] The actuating mechanism 100 of the embodiment of the present application comprises the gear set 120 engaged with the motor 210 and the handle transmission member 130 engaged with the gear set 120, and the shell 110 is further provided with the release stuck member 140, the release stuck member 140 comprises the driving part 142 extending out of the shell 110 and the ejector rod 141 connected with the driving part, the driving part 142 drives the movement of the ejector rod 141 when driven, the ejector rod 141 is arranged on one side of the first gear 122, and the ejector rod 141 abuts against the side surface of the first gear 122 in the gear set 120 when moving, and drives the first gear 122 to move in the A direction, the engagement teeth on the outer periphery of the rotating surface of the first gear 122 are dislocated from the teeth of the adjacent gear, so as to disengage and release the stuck. The driving part 142 extends out of the shell 110, that is, the release stuck member 140 can be released by driving from the outside, and it is not necessary to disassemble the circuit breaker, therefore, the actuating mechanism 100 provided by the present application can solve the problem that the gear set 120 or the gear set 120 and the handle are stuck and are not easy to release in the prior art.

[0042] Specifically, the number of gears in the gear set 120 and the action object of the release stuck member 140 are not limited in the embodiment of the present application, for example, the gear set 120 comprises the first gear engaged with the handle transmission member 130 and the second gear, the third gear, the fourth gear and the fifth gear engaged with the first gear in sequence, the ejector rod 141 of the embodiment of the present application abuts against the side surface of the second gear, and the second gear is taken as the first gear 122 in the embodiment of the present application, for the convenience of description, the gear engaged with the handle transmission member 130 is taken as the second gear 121 in the embodiment of the present application, and another gear engaged with the first gear 122 is taken as the third gear 123. It can be understood that, in order to realize the transmission of gears, each gear in the gear set 120 comprises two gear discs, one gear disc is used for engaging with the gear of the upper level, and the other gear disc is used for engaging with the gear of the lower level.

[0043] As shown in Figure 2 , Figure 3 , or Figure 9 and Figure 10 , the ejector rod 141 of the release stuck member 140 corresponds to the position of the upper gear disc of the first gear 122, when the gear set 120 or the second gear 121 and the handle transmission member 130 are stuck, the ejector rod 141 drives the upper gear disc of the first gear 122 to move upward, so that the lower gear disc is dislocated from the second gear 121 or the upper gear disc is dislocated from the third gear 123, thereby disengaging and releasing the stuck.

[0044] It should be noted that the embodiment of the present application takes the second gear as the first gear 122 for description, and is not a limitation on the action object of the release stuck member 140, and the number of gears in the gear set 120 and the setting position of the release stuck member 140 can be set according to the actual situation by the person skilled in the art.

[0045] It should be further noted that the drive part in the embodiment of the present application is exposed through the outer wall, which means that an operation hole is arranged on the outer wall of the shell 110, so that the surface of the drive part 142 is exposed through the operation hole. Specifically, the relationship between the drive part 142 and the shell 110 is not limited in the embodiment of the present application. For example, the drive part 142 can protrude out of the outer wall of the shell 110 through the operation hole, can be flush with the outer wall of the shell 110, or can be inserted into the shell 110, as long as the operator can operate the drive part through the operation hole.

[0046] The present application provides an actuating mechanism 100, which comprises a shell 110, a gear set 120 arranged in the shell 110, and a handle transmission member 130. The handle transmission member 130 is engaged with the gear set 120. The gear set 120 comprises a plurality of gears engaged with each other. The outer wall of the shell 110 is further connected with a release jamming member 140. The release jamming member 140 comprises a top rod 141 and a drive part 142 protruding out of the shell 110. The drive part 142 protrudes out of the shell 110. The drive part 142 is driven to drive the top rod 141 to abut against the side surface of a first gear 122 in the gear set 120 and move the first gear 122 along the axial direction of the first gear 122, so as to release the engagement between the first gear 122 and other gears or the engagement between the first gear 122 and the handle transmission member 130, and release the jamming. That is, the drive part 142 of the release jamming member 140 outside the shell 110 can drive the first gear 122 to move along the axial direction of the first gear 122, so that the engagement teeth on the outer side of the first gear 122 are dislocated from the teeth of the adjacent gears or the handle transmission member 130, thereby releasing the jamming. Therefore, the actuating mechanism 100 provided by the present application can solve the problem that the gears in the gear set 120 or the gear set 120 and the handle are difficult to release after being jammed.

[0047] In an implementable manner of the embodiment of the present application, as shown in Figure 2 , Figure 3 , or Figure 9 and Figure 10 , the top rod 141 abuts against the first side surface of the first gear 122. A first elastic member 151 is arranged between the shell 110 and the second side surface of the first gear 122, which is used to drive the first gear 122 to move along the axial direction of the first gear 122 and re-engage with other gears or the handle transmission member 130 after releasing the jamming.

[0048] A first elastic member 151 is arranged between the second side shell 110 of the first gear 122. When the first gear 122 is driven to move upward in the first direction, the first elastic member 151 is compressed and accumulates potential energy. When the jamming is released, the first elastic member 151 releases the potential energy and drives the first gear 122 to move downward in the first direction, so that the first gear 122 re-engages with the second gear 121 and the third gear 123, and the rotation of the motor 210 is transmitted.

[0049] Specifically, the specific structure of the first elastic member 151 is not limited in the embodiments of the present application. For example, it can be a compression spring as shown in Figure 2 and 9 The two ends of the compression spring are in contact with the shell 110 and the first gear 122 respectively, and the contact area is large, so that the elastic member is relatively stable.

[0050] Optionally, as shown in Figure 5 , Figure 9 and Figure 10 A second elastic member 152 is arranged between the release jamming member 140 and the shell 110, and the second elastic member 152 is used to drive the release jamming member 140 to reset after the jamming is released.

[0051] The release jamming member 140 is driven to move and drive the first gear 122 to move. In order to facilitate the reset of the release jamming member 140, the second elastic member 152 is arranged between the release jamming member 140 and the shell 110. When the release jamming member 140 is driven to move, the second elastic member 152 is compressed and accumulates potential energy. When the jamming is released, the second elastic member 152 releases the potential energy, and the release jamming member 140 moves in the opposite direction of the driving direction, so that the release jamming member 140 resets.

[0052] In an implementable manner of the embodiments of the present application, as shown in Figure 4 and Figure 5 The driving part 142 drives the top rod 141 to rotate in a plane perpendicular to the rotation plane of the first gear, so that the end of the top rod 141 is in contact with and abuts against the first gear 122.

[0053] When the driving part 142 is driven to rotate, the connecting rod 143 rotates with the driving part 142, so that the top rod 141 rotates in a plane perpendicular to the rotation plane of the first gear 122, so that the end of the top rod 141 approaches the first gear 122 and abuts, as shown in Figure 7 pushes the first gear 122 to move upward in the A direction, as shown in Figure 3 and Figure 4 .

[0054] The connecting rod 143 is arranged perpendicularly to the top rod 141, so that the release jamming member 140 is a knob type, and the release jamming function is realized by rotating.

[0055] Optionally, the releasing stuck part 140 further comprises a connecting rod 143 connecting the top rod 141 and the driving part 142, the connecting rod 143 is perpendicular to the top rod 141, and the length of the top rod 141 is greater than the distance between the connecting rod 143 and the first gear.

[0056] The length of the top rod 141 is greater than the distance between the connecting rod 143 and the first gear, so that the top rod is in contact with and abuts against the first gear during rotation.

[0057] Optionally, as shown in Figure 4 and Figure 6 , the side of the driving part 142 away from the connecting rod 143 is provided with a groove 144 for cooperating with a driving part, the driving part extends into the groove 144 and drives the driving part 142 to rotate.

[0058] The groove 144 is provided on the side of the driving part 142 away from the connecting rod 143, so that the groove 144 is exposed and matches the end surface of the driving part. When the gear is stuck, the driving part extends into the groove 144 and rotates, driving the driving part 142 to rotate, and then driving the top rod 141 to rotate through the connecting part.

[0059] The specific shape of the groove 144 is exemplarily a slot, a cross slot, etc. in the embodiment of the application, as long as the shape of the end surface of the driving part can be matched.

[0060] In an implementable manner of the embodiment of the application, as shown in Figure 5 , the side of the driving part 142 close to the connecting rod 143 is further provided with a limiting part, the limiting part protrudes from the driving part 142, and the second elastic part 152 is arranged between the limiting part and the shell 110.

[0061] In actual application, the shell comprises a base and an upper cover buckled with the base, and when the top rod 141 rotates in a plane perpendicular to the rotation surface of the first gear 122, the releasing stuck part 140 is arranged on the base.

[0062] The limiting part protrudes from the driving part 142 and abuts against the side wall of the shell 110, avoiding the releasing stuck part 140 from falling out of the shell 110.

[0063] Exemplarily, the second elastic part 152 is a torsion spring, one end of the torsion spring is arranged in the limiting part, and the other end is fixed with the shell 110, so that the second elastic part 152 is arranged between the limiting part and the shell 110. When the releasing stuck part 140 is rotated, the limiting part rotates with the driving part 142 and drives one end of the torsion spring to rotate, so that the second elastic part 152 accumulates potential energy. Similarly, when the driving of the driving part 142 is cancelled, the second elastic part 152 releases the potential energy and drives the limiting part to rotate reversely, realizing the reset of the releasing stuck part 140.

[0064] The specific structure of the limiting member is not limited in the embodiments of the present application, and examples are shown in the drawings. Figure 5 As shown in the drawings, the limiting member includes a limiting protrusion of a limiting disc, and the limiting disc protrudes from the driving part 142 and abuts against the shell. In addition, in order to indicate the state of releasing the jamming member 140, a protrusion in the same direction as the extension direction of the jacking rod 141 can be arranged on the limiting disc, and an indicating hole is arranged on the shell 110 corresponding to the position of the jacking rod 141 in the released jamming state, so that the protrusion is exposed outside through the indicating hole, thereby playing a role of indicating the state of the jacking rod 141.

[0065] In an implementable manner of the embodiments of the present application, as shown in the drawings, Figure 9 , Figure 10 , Figure 11 and Figure 12 , the jacking rod 141 extends along the axis of the first gear 122, the driving part 142 includes a pressing part 145, and the pressing part 145 is pressed to move the end of the jacking rod 141 towards the first gear 122 and push the first gear 122 to move along the axis of the first gear 122.

[0066] The jacking rod 141 is arranged to extend along the A direction, the driving part 142 includes a pressing part 145, and the pressing part 145 is pressed to move the jacking rod 141 along the A direction, thereby pushing the first gear 122 to move along the A direction and releasing the jamming.

[0067] Optionally, as shown in the drawings, Figure 13 , the end of the jacking rod 141 is provided with a hanging column 146, and the second elastic member 152 is a tension spring, one end of the tension spring is hung on the hanging column 146, and the other end is fixedly connected with the shell 110.

[0068] One end of the tension spring is fixed with the hanging column 146, and the other end is fixed with the shell 110. When the pressing part 145 is pressed to move the jacking rod 141 upwards along the A direction, one end of the tension spring is stretched, so that the tension spring is elongated and has elastic potential energy. When the driving force of pressing is removed, the jacking rod 141 is pulled to move downwards along the A direction under the action of the elastic potential energy, so that the jamming releasing member 140 is reset.

[0069] In an implementable manner of the embodiments of the present application, as shown in the drawings, Figure 11 and Figure 13 , an expansion part 147 is arranged between the pressing part 145 and the jacking rod 141, the expansion part 147 protrudes from the pressing part 145 perpendicular to the movement direction of the jacking rod 141, so that the expansion part 147 abuts against the inner wall of the shell 110.

[0070] The expansion part 147 is arranged between the pressing part 145 and the jacking rod 141, and the expansion part 147 abuts against the inner wall of the shell 110, thereby avoiding the jamming releasing member 140 from falling off the shell 110.

[0071] The application further discloses a circuit breaker, comprising the above-mentioned actuator 100, a motor 210 arranged in the housing 110 of the actuator 100, and a handle connected to the handle transmission member 130 of the actuator 100, wherein the motor 210 is connected with the gear set 120 of the actuator 100 to drive the gear set 120 to rotate. The circuit breaker comprises the same structure and beneficial effects as the actuator 100 in the foregoing embodiments. The structure and beneficial effects of the actuator 100 have been described in detail in the foregoing embodiments, and will not be described here again.

[0072] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An actuator, characterized by It includes a shell and a gear set and a handle transmission member arranged in the shell, the handle transmission member is engaged with the gear set, the gear set includes a plurality of gears engaged with each other, the outer wall of the shell is also connected to a release jamming member, the release jamming member includes a push rod and a driving part, the driving part is exposed through the outer wall, the driving part is driven to drive the push rod to abut against the side of the first gear in the gear set and make it move axially to release the engagement of the first gear with other gears or the engagement of the first gear with the handle transmission member, thereby releasing the jam.

2. The actuator of claim 1, wherein, The push rod is in contact with the first side surface of the first gear, and a first elastic member is provided between the housing and the second side surface of the first gear, for driving the first gear to move along the axial direction of the first gear and re-engage with other gears or handle transmission members after being released from the jam.

3. The actuator of claim 1, wherein, A second elastic member is provided between the release locking member and the housing, and the second elastic member is used for driving the release locking member to reset after the release locking member is locked.

4. Actuator according to any one of claims 1-3, characterized in that The driving portion drives the push rod to rotate in a plane perpendicular to the rotation surface of the first gear, so that the end of the push rod contacts and abuts against the first gear.

5. The actuator of claim 4, wherein, A groove for cooperating with a driving member is provided on a side of the driving portion away from the push rod, and the driving member extends into the groove and drives the driving portion to rotate.

6. The actuator of claim 4, wherein, A limiting member is further provided on a side of the driving portion close to the push rod. The limiting member protrudes from the driving portion, and a second elastic member is provided between the limiting member and the housing.

7. The actuator of claim 4 wherein, The release locking member further includes a connecting rod connecting the push rod and the driving part, the connecting rod is perpendicular to the push rod, and the length of the push rod is greater than the distance between the connecting rod and the first gear.

8. An actuator according to any one of claims 1 to 3, wherein The push rod extends along the axial direction of the first gear, and the driving part includes a pressing part, which is pressed to move the end of the push rod toward the first gear and push the first gear to move along the axial direction of the first gear; an expansion part is provided between the pressing part and the push rod, and the expansion part protrudes from the pressing part perpendicular to the movement direction of the push rod so that the expansion part abuts against the inner side wall of the shell.

9. The actuator of claim 8, wherein, A hanging column is provided at the end of the push rod, and the second elastic member is a tension spring. One end of the tension spring is hung on the hanging column, and the other end is fixedly connected to the shell.

10. A circuit breaker characterized by, It comprises an actuator as described in any one of claims 1 to 9, a motor arranged in a housing of the actuator, and a handle connected to a handle transmission member of the actuator, wherein the motor is connected to a gear set of the actuator to drive the gear set to rotate.

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