Operating device for circuit breaker and circuit breaker

Abstract

The embodiment of the utility model provides an operating device for a circuit breaker and the circuit breaker. The operating device comprises a support, a sliding assembly, a main shaft, a ratchet wheel and a pawl. The sliding assembly is arranged on one side of the support. The support is provided with a shaft hole, and the main shaft is inserted into the shaft hole and coupled to the sliding assembly. A driving part is arranged at the end, away from the sliding assembly, of the main shaft and used for driving the main shaft to rotate, and the sliding assembly can be switched between the switching-on position and the switching-off position. The ratchet wheel is arranged on the outer side of the main shaft in a sleeving mode and coupled to the main shaft, and helical teeth are arranged on the inner wall of the ratchet wheel. The pawl is coupled to the bracket, the pawl is arranged in the ratchet wheel and can limit the position of one side of the helical teeth, and the ratchet wheel and the main shaft can rotate only in one direction. By means of the arrangement, under the action of the ratchet wheel and the pawl, a user can be prevented from rotating the operation device reversely, damage to the operation device is avoided, and therefore the service life of the operation device is prolonged.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of electrical equipment, and more particularly to an operating device for a circuit breaker and a circuit breaker. Background Art

[0002] Circuit breakers are key devices in power systems that protect circuits from overload and short circuit damage. They can automatically cut off circuits when abnormal current is detected. An operating device can be installed on the circuit breaker to remotely control the opening and closing of the circuit breaker and provide good protection for the operator. In some conventional electric operating devices, users can manually drive the circuit breaker to open and close, but users often reverse the electric operating device, which accelerates the aging and damage of the electric operating device. Utility Model Content

[0003] An object of the embodiments of the present disclosure is to provide an operating device for a circuit breaker and a circuit breaker to at least partially solve the above problems and other potential problems.

[0004] In a first aspect of the present disclosure, an operating device for a circuit breaker is provided. The operating device comprises: a bracket having an axial hole; a sliding assembly, which is arranged on one side of the bracket and can be switched between a closing position and an opening position; a main shaft, which is inserted into the axial hole and coupled to the sliding assembly, and a driving part is arranged at one end of the main shaft away from the sliding assembly, and the driving part is used to drive the main shaft to rotate so that the sliding assembly can be switched between the closing position and the opening position; a ratchet, which is sleeved on the outer side of the main shaft and coupled to the main shaft, and the inner wall of the ratchet is provided with helical teeth; and a pawl, which is coupled to the bracket, and the pawl is arranged in the ratchet and can limit the position of one side of the helical teeth so that the ratchet and the main shaft can only rotate in one direction.

[0005] In some embodiments, the operating device further includes: an indicator plate, which is disposed at an end of the main shaft away from the sliding assembly and coupled to the main shaft, and the indicator plate includes a mark indicating an angle change of the indicator plate.

[0006] In some embodiments, the ratchet and the pawl are disposed between the indicator disc and the bracket, and the ratchet is coupled to the indicator disc.

[0007] In some embodiments, the pawl is rotatably connected to the bracket, and the operating device further comprises: an elastic member coupled to the bracket and the pawl, and the elastic member is configured to apply a force to the pawl to make the pawl abut against the bevel teeth.

[0008] In some embodiments, the pawl includes: a rotating end rotatably coupled to the bracket; and a free end opposite to the rotating end and abutting against the helical teeth of the ratchet, and the free end is a pointed end that can cooperate with the angle between two adjacent helical teeth.

[0009] In some embodiments, a side of the pawl close to the oblique teeth is arc-shaped.

[0010] In some embodiments, the driving portion is a groove, and the groove is suitable for the driving member to be inserted into.

[0011] In some embodiments, the operating device also includes: a support member, which is arranged between the bracket and the sliding assembly and coupled to the bracket, and the support member includes a through hole for the main shaft to pass through; and an electric assembly, which is coupled to the support member and coupled to the main shaft, and the electric assembly is used to drive the main shaft to rotate so that the sliding assembly can switch between the closed position and the open position.

[0012] In some embodiments, the sliding assembly includes: a base; a guide rail coupled to the base; a sliding member slidably coupled to the guide rail, and the sliding member includes: a guide groove arranged on the side of the sliding member facing the main shaft; and a limit groove arranged on the side of the sliding member away from the main shaft; and a cam arranged between the main shaft and the sliding member and coupled to the main shaft, and a protrusion is arranged on the side of the cam facing the sliding member, the protrusion is inserted into the guide groove, and the cam can drive the sliding member to slide along the guide rail during rotation.

[0013] In some embodiments, the operating device also includes: a connecting member coupled to the supporting member; and a shell, which is mounted on the outside of the bracket, the main shaft and the sliding assembly and coupled to the connecting member, and the shell includes an operating hole, the position of which corresponds to the position of the driving part.

[0014] In a second aspect of the present disclosure, a circuit breaker is provided, comprising: a body including an operating mechanism having a handle; and an operating device for a circuit breaker according to the first aspect of the present disclosure, wherein a sliding assembly of the operating device is coupled to the handle of the operating mechanism.

[0015] In an embodiment of the present disclosure, the operating device includes a bracket, a sliding assembly, a main shaft, a ratchet and a pawl. The sliding assembly is arranged on one side of the bracket, and the sliding assembly can switch between a closing position and an opening position. The bracket is provided with an axial hole, the main shaft is inserted into the axial hole, and the main shaft is coupled to the sliding assembly. A driving part is provided at one end of the main shaft away from the sliding assembly, and the driving part is used to drive the main shaft to rotate, so that the sliding assembly can switch between a closing position and an opening position. The ratchet is sleeved on the outside of the main shaft and coupled to the main shaft, and the inner wall of the ratchet is provided with helical teeth. The pawl is coupled to the bracket, and the pawl is arranged in the ratchet and can limit the position of one side of the helical teeth, so that the ratchet and the main shaft can only rotate in one direction. With this arrangement, under the action of the ratchet and the pawl, the user can be prevented from rotating the operating device in the opposite direction, and damage to the operating device can be avoided, thereby improving the service life of the operating device.

[0016] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 A perspective view of an operating device for a circuit breaker according to an embodiment of the present disclosure is shown, wherein a housing is not shown;

[0019] Figure 2 A disassembled view of a bracket, a main shaft, a ratchet wheel and a pawl of an embodiment of the present disclosure is shown;

[0020] Figure 3 A perspective view showing a bracket, a ratchet, a pawl and an elastic member of an embodiment of the present disclosure;

[0021] Figure 4 A perspective view of the main shaft, support member and motor assembly of an embodiment of the present disclosure is shown;

[0022] Figure 5 An exploded view of a slide assembly of an embodiment of the present disclosure is shown, wherein the guide slot is shown;

[0023] Figure 6 A disassembled view of the sliding assembly of the embodiment of the present disclosure is shown, wherein the limiting groove is shown; and

[0024] Figure 7 A perspective view of an operating device for a circuit breaker according to an embodiment of the present disclosure is shown, wherein a housing is shown.

[0025] Description of reference numerals:

[0026] 100. operating device; 101. housing; 102. operating hole;

[0027] 10. Bracket; 11. Shaft hole;

[0028] 20. Sliding assembly; 21. Base; 22. Guide rail; 23. Sliding member; 231. Guide groove; 232. Limiting groove; 24. Cam; 241. Protrusion; 25. Connecting plate;

[0029] 30. spindle; 31. driving unit;

[0030] 40. Ratchet; 41. Helical teeth;

[0031] 50, ratchet; 51, rotating end; 52, free end;

[0032] 60. Indicator plate;

[0033] 70. Elastic parts;

[0034] 80. Support member; 81. Through hole; 82. Connecting member;

[0035] 90. Electric assembly; 91. Motor; 92. Driving wheel; 93. Gear set; 94. Driven wheel. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0037] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0038] As described above, in some conventional electric operating devices, users can manually drive the circuit breaker to open or close. However, users often rotate the electric operating device in the reverse direction, which accelerates the aging and damage of the electric operating device.

[0039] The embodiment of the present disclosure provides an operating device 100 for a circuit breaker and a circuit breaker. In the operating device 100, a ratchet 40 and a pawl 50 are provided, and the main shaft 30 is coupled to the ratchet 40. With this arrangement, it is possible to prevent the user from rotating the operating device 100 in the opposite direction, thereby preventing damage to the operating device 100, thereby increasing the service life of the operating device 100. Figures 1 to 7 To describe the principles of the present disclosure in detail.

[0040] like Figures 1 to 3 As shown, the operating device 100 includes a bracket 10 , a sliding assembly 20 , a main shaft 30 , a ratchet 40 and a pawl 50 .

[0041] like Figure 2 and Figure 3As shown, a shaft hole 11 is provided on the bracket 10, and the shaft hole 11 is used to accommodate the main shaft 30. The bracket 10 can support the main shaft 30, the ratchet 40 and the ratchet pawl 50, etc., to ensure that they do not deviate from their positions during operation.

[0042] As an example, metal pieces of different shapes and sizes can be selected as needed, and they can be assembled into the bracket 10 by welding, bolting, etc. In this way, the assembled bracket 10 can withstand a large load and maintain good stability and durability.

[0043] As another example, the metal material can be formed into the required bracket 10 through stamping, bending and other processes. In this way, material waste can be reduced, thereby achieving standardized and modular manufacturing, and facilitating subsequent assembly and maintenance.

[0044] The sliding assembly 20 can be switched between a closing position and an opening position. When the sliding assembly 20 is connected to the body of the circuit breaker, the sliding assembly 20 can drive the handle of the circuit breaker body to move, thereby achieving the closing and opening of the circuit breaker.

[0045] like Figure 1 As shown, the main shaft 30 passes through the shaft hole 11 on the bracket 10 and is coupled to the sliding assembly 20 on one side of the bracket 10. A driving part 31 is provided at one end of the main shaft 30, and the driving part 31 provides a position for the user to manually rotate the main shaft 30. When the user operates the driving part 31, the driving part 31 can make the main shaft 30 rotate, thereby driving the sliding assembly 20 to switch between the closing position and the opening position.

[0046] like Figure 2 and Figure 3 As shown, the ratchet 40 is a circular ring-shaped component with helical teeth 41 on the inner wall. The ratchet 40 is sleeved on the outer side of the main shaft 30 and coupled with the main shaft 30. When the main shaft 30 rotates, the main shaft 30 can drive the ratchet 40 to rotate. The pawl 50 is coupled with the bracket 10 and is located inside the ratchet 40. The shape and position of the pawl 50 enable it to cooperate with the helical teeth 41 of the ratchet 40. When the pawl 50 contacts the helical teeth 41, the pawl 50 can limit the position of one side of the helical teeth 41, thereby allowing the ratchet 40 and the main shaft 30 to rotate in one direction.

[0047] With this arrangement, when the user operates the driving part 31 to rotate, the main shaft 30 drives the ratchet 40 to rotate, and drives the sliding assembly 20 to switch between the closing position and the opening position. The pawl 50 can ensure that the ratchet 40 and the main shaft 30 can only rotate in one direction, which can prevent the user from rotating the operating device 100 in the opposite direction and avoid damaging the operating device 100, thereby increasing the service life of the operating device 100.

[0048] In some embodiments, Figure 1 and Figure 2 As shown, the operating device 100 further includes an indicator plate 60. The indicator plate 60 is disposed at one end of the main shaft 30 away from the sliding assembly 20, and the indicator plate 60 is coupled to the main shaft 30. The indicator plate 60 is provided with a mark indicating the angle change of the indicator plate 60.

[0049] like Figure 1 and Figure 2 As shown, when the main shaft 30 rotates, the indicator disc 60 will rotate accordingly, and the mark on the indicator disc 60 can be used to indicate the rotation angle of the indicator disc 60. In this way, when the user manually rotates the main shaft 30, he can judge whether the operation is in place by the mark on the indicator disc 60.

[0050] As an example, more than two sector-shaped areas are divided on the indicator disk 60. For example, a green mark is set in one sector-shaped area to indicate that the sliding component 20 is in the open position, and a red mark is set in another sector-shaped area to indicate that the sliding component 20 is in the closed position, and so on.

[0051] In one embodiment, the indicator disk 60 may be a color disk. In other embodiments, the indicator disk 60 may be any other suitable type. It should be understood that scales, numbers, letters or any other easily distinguishable marks may also be provided on the indicator disk 60, and the present disclosure is not intended to be limited thereto.

[0052] In some embodiments, Figure 1 and Figure 2 As shown, the ratchet 40 and the pawl 50 are disposed between the indicator plate 60 and the bracket 10 , and the ratchet 40 is coupled to the indicator plate 60 .

[0053] like Figures 1 to 3 As shown, the indicator disc 60 can be a circular component, and the central axis of the indicator disc 60 is in the same straight line as the central axis of the ratchet 40. In this way, during the rotation of the indicator disc 60, the indicator disc 60 can drive the ratchet 40 to rotate, and no additional connection structure is required between the ratchet 40 and the main shaft 30, which can simplify the manufacturing process and reduce the production cost.

[0054] In some embodiments, Figure 3 As shown, the pawl 50 is rotatably connected to the bracket 10 , and the operating device 100 further includes an elastic member 70 . The elastic member 70 is coupled to the bracket 10 and the pawl 50 , and the elastic member 70 is configured to apply a force to the pawl 50 to make the pawl 50 abut against the oblique teeth 41 .

[0055] like Figure 3As shown, the pawl 50 can rotate freely around a rotation axis on the bracket 10. When the pawl 50 is in the working position, it prevents the ratchet 40 from rotating in the reverse direction. In order to improve the position stability of the pawl 50 and prevent the pawl 50 from being disengaged from the bevel tooth 41 when no external force is applied, an elastic member 70, such as a spring, is provided on the bracket 10. The elastic member 70 is coupled between the bracket 10 and the pawl 50, and can provide a constant thrust, thereby ensuring that the pawl 50 always rests on the bevel tooth 41 and remains stable even under slight vibrations or external interference. In this way, the restoring force of the elastic member 70 will push the pawl 50 back to the bevel tooth 41, keeping the ratchet 40 and the pawl 50 in a locked state, thereby ensuring the reliability of the pawl 50 mechanism.

[0056] In some alternative embodiments, the pawl 50 itself can be an elastic member, such as a pawl 50 made of an elastic steel sheet. In this way, the pawl 50 is fixed on the bracket 10 and abuts against the bevel teeth 41 by its own elasticity.

[0057] In some embodiments, Figure 3 As shown, the pawl 50 includes a rotating end 51 and a free end 52, and the rotating end 51 and the free end 52 are arranged opposite to each other. The rotating end 51 is rotatably coupled to the bracket 10. The free end 52 abuts against the helical teeth 41 of the ratchet 40, and the free end 52 is a tip, and the tip can match the angle between two adjacent helical teeth 41.

[0058] like Figure 3 As shown, the rotating end 51 can be connected to the bracket 10 via a rotating shaft or a pin, so that the pawl 50 can rotate around the rotating shaft or the pin. The free end 52 is the other end of the pawl 50. The free end 52 has no fixed connection point and can be freely extended or retracted. Here, the free end 52 can be designed to be sharp in shape so as to better contact the bevel teeth 41 on the ratchet 40. In this way, the tip of the pawl 50 can be embedded in the angle between two adjacent bevel teeth 41. When the ratchet 40 rotates forward, the tip of the pawl 50 slides along the bevel teeth 41 without any obstruction. When the ratchet 40 attempts to rotate in the reverse direction, the tip of the pawl 50 will be stuck between two adjacent bevel teeth 41, preventing it from moving, thereby achieving the purpose of unidirectional rotation control.

[0059] In some embodiments, Figure 3 As shown, the side of the pawl 50 close to the bevel tooth 41 is arc-shaped. In this way, the arc-shaped edge can reduce the contact area between the pawl 50 and the bevel tooth 41, thereby reducing the friction. When the ratchet 40 rotates in the forward direction, it can more easily push the bevel tooth 41 to slide along the arc-shaped edge of the pawl 50 without generating excessive resistance or wear. At the same time, due to the reduction of friction and impact, the noise level of the operating device 100 during operation can also be reduced.

[0060] In some embodiments, Figure 1 and Figure 2 As shown, the driving part 31 is a groove, and the groove is suitable for inserting a driving member. In this way, the user can insert a handheld driving member (for example, a handle or a screwdriver) into the groove, thereby driving the rotation of the main shaft 30 and the position switching of the sliding assembly 20. At the same time, after the driving member is inserted into the groove, the groove can ensure that the driving member and the main shaft 30 form an effective and stable connection, so as to ensure that the force or torque can be accurately transmitted.

[0061] In the embodiments of the present disclosure, Figure 4 As shown, the operating device 100 can also be driven electrically.

[0062] In some embodiments, Figure 4 As shown, the operating device 100 also includes a support member 80 and an electric component 90. The support member 80 is located between the bracket 10 and the sliding component 20, and can be used to connect and support other components. The support member 80 is coupled (for example, by bolts, welding or other fixing methods) to the bracket 10 to ensure structural stability. A through hole 81 is provided on the support member 80, and the size and shape of the through hole 81 allow the spindle 30 to pass through. The electric component 90 is mounted on the support member 80, and the electric component 90 is coupled to the spindle 30, that is, the output shaft of the motor 91 is connected to the spindle 30, and when the motor 91 is started, the spindle 30 can be driven to rotate.

[0063] As an example, the electric assembly 90 may include a motor 91, a driving wheel 92, a gear set 93, and a driven wheel 94. The motor 91 is fixed to the support 80, the driving wheel 92 is connected to the output shaft of the motor 91, the driven wheel 94 is connected to the main shaft 30, and the gear set 93 may be provided between the driving wheel 92 and the driven wheel 94. In this way, when the motor 91 is started, the motor 91 can drive the main shaft 30 to rotate through the driving wheel 92, the gear set 93, and the driven wheel 94.

[0064] With this arrangement, when the electric assembly 90 drives the main shaft 30 to rotate, the movement of the main shaft 30 is transmitted to the sliding assembly 20. When the sliding assembly 20 is switched to the closing position, the circuit is closed. When the sliding assembly 20 is switched to the opening position, the circuit is opened.

[0065] In some embodiments, Figure 5 and Figure 6 As shown, the sliding assembly 20 includes a base 21, a guide rail 22, a sliding member 23 and a cam 24. The base 21 is the basic structure of the sliding assembly 20, and the guide rail 22 is installed on the base 21, and the guide rail 22 can limit and guide the sliding member 23 to slide along a predetermined path.

[0066] A guide groove 231 and a limit groove 232 are respectively provided on the two side surfaces of the sliding member 23. The guide groove 231 is provided on the side of the sliding member 23 facing the main shaft 30, and the guide groove 231 can cooperate with the protrusion 241 on the cam 24, so that the rotation of the cam 24 can push the sliding member 23 to slide along the guide rail 22 through the protrusion 241. The limit groove 232 is provided on the side of the sliding member 23 away from the main shaft 30, and the limit groove 232 is used to connect to the handle of the circuit breaker body, and can drive the handle to switch between the closing position and the opening position.

[0067] The cam 24 is disposed between the main shaft 30 and the sliding member 23, and the cam 24 is coupled to the main shaft 30. When the main shaft 30 rotates, the cam 24 also rotates therewith. A protrusion 241 is disposed on the side of the cam 24 facing the sliding member 23, and the protrusion 241 can be inserted into the guide groove 231 of the sliding member 23. When the cam 24 rotates with the main shaft 30, the protrusion 241 moves in the guide groove 231, pushing the sliding member 23 to slide along the guide rail 22, thereby converting the rotational motion of the main shaft 30 into the linear motion of the sliding member 23.

[0068] With this arrangement, when the user manually drives or drives the main shaft 30 to rotate through the electric assembly 90, the cam 24 coupled to the main shaft 30 also rotates. The protrusion 241 on the cam 24 contacts the guide groove 231 of the slider 23 during the rotation process, pushing the slider 23 to slide along the guide rail 22. The movement path of the slider 23 is constrained by the guide rail 22, which can ensure that it moves in a predetermined direction and distance to complete the closing or opening of the circuit breaker.

[0069] In some embodiments, Figure 1 and Figure 7 As shown, the operating device 100 further includes a connecting member 82 and a housing 101. The connecting member 82 is mounted on the supporting member 80. The housing 101 is sleeved on the outside of the bracket 10, the main shaft 30 and the sliding assembly 20, and the housing 101 is coupled to the connecting member 82. An operating hole 102 is provided in the housing 101, and the position of the operating hole 102 corresponds to the position of the driving part 31.

[0070] like Figure 7 As shown, the housing 101 can surround and protect the bracket 10, the main shaft 30, and the sliding assembly 20, etc., and can prevent dust, moisture, and foreign matter from entering, and protect the internal mechanical structure from external physical impact. The housing 101 can be installed on the connecting member 82 by means of screws, buckles, etc., which can ensure the stability of the structure of the entire operating device 100 and facilitate maintenance and replacement.

[0071] As an example, Figure 1As shown, the connecting member 82 is a structure bent from the edge of the supporting member 80, and screw holes are provided on both the connecting member 82 and the housing 101, and the connecting member 82 and the housing 101 are connected together by screws.

[0072] It should be understood that the connecting member 82 may also be fixed to the supporting member 80 by any practicable means such as bolts, snaps, welding, etc., and the present disclosure is not intended to be limited to this.

[0073] As another example, Figure 1 As shown, one or more screw holes may be provided on the housing 101, and the housing 101 may be mounted on the connecting plate 25 by screws, and the connecting plate 25 is fixed to the base 21. In this way, the stability of the housing 101 may be improved.

[0074] An operating hole 102 is provided on the housing 101, and the position of the operating hole 102 corresponds to the position of the driving part 31. When the operator operates through the operating hole 102, the handle or button can be connected with the driving part 31 along the operating hole 102 to rotate the main shaft 30.

[0075] In a second aspect of the present disclosure, a circuit breaker is provided, which includes a body and an operating device 100 for a circuit breaker according to the first aspect of the present disclosure, wherein the body includes an operating mechanism having a handle, and a sliding assembly 20 of the operating device 100 is coupled to the handle of the operating mechanism.

[0076] In the embodiments of the present disclosure, the circuit breaker refers to a circuit breaker having an operating device 100. The sliding assembly 20 in the operating device 100 can be coupled to the handle of the operating mechanism in the body. When the sliding assembly 20 of the operating device 100 moves, it can directly drive the handle of the operating mechanism to move, thereby controlling the closing or opening of the circuit breaker. With this arrangement, the user can indirectly control the switching action of the circuit breaker through the operating device 100, thereby achieving the management and control of the circuit. At the same time, under the action of the ratchet 40 and the pawl 50, the user can avoid rotating the operating device 100 in the opposite direction, thereby avoiding damage to the operating device 100, thereby increasing the service life of the operating device 100.

[0077] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An operating device (100) for a circuit breaker, characterized in that: include: A bracket (10) having an axial hole (11); A sliding assembly (20) is arranged on one side of the bracket (10) and is capable of switching between a closing position and an opening position; A main shaft (30) is inserted into the shaft hole (11) and coupled to the sliding assembly (20), and a driving portion (31) is provided at one end of the main shaft (30) away from the sliding assembly (20), wherein the driving portion (31) is used to drive the main shaft (30) to rotate so that the sliding assembly (20) switches between the closing position and the opening position; A ratchet (40) is sleeved on the outer side of the main shaft (30) and coupled to the main shaft (30), and the inner wall of the ratchet (40) is provided with helical teeth (41); and A pawl (50) is coupled to the bracket (10), wherein the pawl (50) is disposed in the ratchet wheel (40) and is capable of limiting the position of one side of the bevel tooth (41) so that the ratchet wheel (40) and the main shaft (30) can only rotate in one direction.

2. The operating device (100) for a circuit breaker according to claim 1, characterized in that: Also includes: An indicator plate (60) is arranged at one end of the main shaft (30) away from the sliding assembly (20) and is coupled to the main shaft (30), and the indicator plate (60) includes a mark indicating an angle change of the indicator plate (60).

3. The operating device (100) for a circuit breaker according to claim 2, characterized in that: The ratchet (40) and the pawl (50) are disposed between the indicator disk (60) and the bracket (10), and the ratchet (40) is coupled to the indicator disk (60).

4. The operating device (100) for a circuit breaker according to claim 3, characterized in that: The pawl (50) is rotatably connected to the bracket (10), and the operating device (100) further comprises: An elastic member (70) is coupled to the bracket (10) and the pawl (50), and the elastic member (70) is configured to apply a force to the pawl (50) so as to cause the pawl (50) to abut against the oblique teeth (41).

5. The operating device (100) for a circuit breaker according to claim 4, characterized in that: The ratchet (50) comprises: A rotating end (51) rotatably coupled to the bracket (10); and The free end (52) is opposite to the rotating end (51) and abuts against the oblique teeth (41) of the ratchet (40), and the free end (52) is a pointed end that can match the angle between two adjacent oblique teeth (41).

6. The operating device (100) for a circuit breaker according to claim 5, characterized in that: A side of the ratchet pawl (50) close to the oblique teeth (41) is arc-shaped.

7. The operating device (100) for a circuit breaker according to any one of claims 1 to 6, characterized in that: The driving portion (31) is a groove, and the groove is suitable for inserting a driving member.

8. The operating device (100) for a circuit breaker according to any one of claims 1 to 6, characterized in that: Also includes: a support member (80) disposed between the bracket (10) and the sliding assembly (20) and coupled to the bracket (10), and the support member (80) comprises a through hole (81) for the main shaft (30) to pass through; as well as An electric component (90) is coupled to the support member (80) and to the main shaft (30), and the electric component (90) is used to drive the main shaft (30) to rotate so that the sliding component (20) switches between the closing position and the opening position.

9. The operating device (100) for a circuit breaker according to any one of claims 1 to 6, characterized in that: The sliding assembly (20) comprises: Base (21); A guide rail (22) coupled to the base (21); A sliding member (23) is slidably coupled to the guide rail (22), and the sliding member (23) comprises: a guide groove (231) disposed on a side of the sliding member (23) facing the main shaft (30); and a limiting groove (232) disposed on a side of the sliding member (23) facing away from the main shaft (30); and A cam (24) is arranged between the main shaft (30) and the sliding member (23) and is coupled to the main shaft (30). A protrusion (241) is arranged on the side of the cam (24) facing the sliding member (23). The protrusion (241) is inserted into the guide groove (231). The cam (24) can drive the sliding member (23) to slide along the guide rail (22) during rotation.

10. The operating device (100) for a circuit breaker according to claim 8, characterized in that: Also includes: A connecting member (82) coupled to the supporting member (80); and The shell (101) is sleeved on the outer sides of the bracket (10), the main shaft (30) and the sliding assembly (20), and is coupled to the connecting member (82), and the shell (101) includes an operating hole (102), and the position of the operating hole (102) corresponds to the position of the driving part (31).

11. A circuit breaker, characterized in that: include: A body including an operating mechanism having a handle; as well as According to the operating device (100) for a circuit breaker according to any one of claims 1 to 10, the sliding assembly (20) of the operating device (100) is coupled to the handle of the operating mechanism.

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