On-off control device self-resetting mechanism, circuit breaker self-resetting device and circuit breaker

Abstract

The invention discloses an on-off control device self-reset mechanism, a circuit breaker self-reset device and a circuit breaker, a locking assembly and a linkage assembly are arranged in a mounting assembly, and the locking assembly, the linkage assembly and an opening assembly are connected in sequence; in the process that the locking assembly moves from the initial position to the first position, the linkage assembly moves along with the locking assembly and stores energy for the opening assembly; when the locking assembly moves to leave the first position, the opening assembly releases energy and drives the on-off control device to be opened from the self-resetting mechanism; when the opening assembly releases energy, the linkage assembly is driven to move, and the linkage assembly drives the locking assembly to move to a second position so as to reset the on-off control device. The energy released by the opening assembly during opening is utilized, and the linkage assembly automatically drives the locking assembly to complete resetting, so that opening and resetting are synchronously carried out, additional resetting operation or an independent resetting mechanism is not needed, the standby recovery time is shortened, and the response speed and the use efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a self-resetting mechanism for a switching control device, a self-resetting device for a circuit breaker, and a circuit breaker. Background Technology

[0002] In existing technologies, the opening and resetting operations of on / off control devices are performed separately. After opening, the operating mechanism remains in the opened position and cannot be directly closed again. An additional reset operation is required to restore it to a standby state where it can be closed again. This design of separating opening and resetting has problems such as complex operation, low efficiency, complex structure, high cost, and poor reliability. Especially in application scenarios that require rapid restart or frequent opening and closing, the need to wait for an additional reset step after opening affects the response speed and efficiency of the equipment. Summary of the Invention

[0003] This invention provides a self-resetting mechanism for a switching control device, a self-resetting device for a circuit breaker, and a circuit breaker, which shortens the time to restore standby and improves the response speed and automation level of the switching control device.

[0004] This invention provides a self-reset mechanism for an on / off control device, comprising a mounting assembly, a linkage assembly, a locking assembly, and a tripping assembly; The mounting assembly is used to support the locking assembly and the linkage assembly; The locking assembly, the linkage assembly, and the tripping assembly are connected in sequence; During the process of the locking component moving from the initial position to the first position, the linkage component moves with the locking component and stores energy for the opening component; When the locking component moves away from the first position, the opening component releases energy and drives the on / off control device self-reset mechanism to open; When the tripping component releases energy, it drives the linkage component to move, and the linkage component drives the locking component to move to the second position to reset the on / off control device.

[0005] Furthermore, it also includes a reset component; The reset component is disposed within the mounting assembly; Under the action of external force, the reset component pushes the locking component to gradually move from the initial position to the first position until it finally leaves the first position; When the tripping component releases energy, the linkage component drives the locking component to a position where it can interact with the reset end of the reset component, thereby resetting the on / off control device.

[0006] Furthermore, the locking assembly includes a first support shaft, a first support plate, and a second support plate; The locking assembly is rotatably connected to the mounting assembly; The first support plate and the second support plate are disposed on the first support shaft; the support shaft is also provided with a locking groove; The second support plate is connected to the linkage component; Under the action of external force, the reset component pushes the first support plate to rotate gradually, and the first support plate drives the first support shaft to rotate gradually, so that the locking groove gradually rotates from the initial position to the first position, and finally leaves the first position.

[0007] Furthermore, the locking assembly includes a first support shaft, a first support plate, and a second support plate; The locking assembly is rotatably connected to the mounting assembly; The first support plate and the second support plate are disposed on the first support shaft; the support shaft is also provided with a locking groove; The second support plate is connected to the linkage component; Under the action of external force, the reset component pushes the first support plate to rotate gradually, and the first support plate drives the first support shaft to rotate gradually, so that the locking groove gradually rotates from the initial position to the first position, and finally leaves the first position.

[0008] Furthermore, it also includes a closing retention component; The closing and holding assembly includes a second support shaft, a locking plate, and an elastic drive member; the locking plate is sleeved on the second support shaft; the elastic drive member is sleeved on the second support shaft and arranged around the locking plate; When the locking groove moves to the first position, the locking plate forms an engagement with one end of the locking plate under the action of the elastic drive member; When the locking groove moves away from the first position, the locking plate overcomes the force and releases the locking from one end of the locking plate.

[0009] Furthermore, it also includes: Dynamic seal; The dynamic seal is located inside the mounting assembly and is connected to the linkage assembly; The mounting assembly is provided with an interface for connecting to an on / off control device.

[0010] Furthermore, the linkage assembly includes a first connecting rod, an output shaft, a second connecting rod, a third connecting rod, and a third support plate that are rotatably connected in sequence; One end of the first connecting rod is rotatably connected to the second support plate; one end of the third support plate is rotatably connected to the dynamic seal. The output shaft is rotatably connected to the mounting assembly.

[0011] Furthermore, the tripping assembly includes a tripping spring, a positioning seat, and a bearing assembly; One end of the trip spring is connected to the positioning seat, and the other end is connected to the third support plate; The positioning seat is fixed to the bearing assembly.

[0012] Another aspect of the present invention provides a circuit breaker self-resetting device, wherein the circuit breaker self-resetting mechanism includes the above-mentioned on / off control device self-resetting mechanism.

[0013] Another aspect of the present invention provides a circuit breaker, the circuit breaker including the above-described circuit breaker self-resetting mechanism, the circuit breaker self-resetting mechanism being connected to the contact switch of the circuit breaker for controlling the opening and closing state of the contact switch.

[0014] This invention utilizes the energy released by the tripping component during circuit breaker tripping to automatically drive the locking component to complete the reset via a linkage component, achieving synchronous tripping and reset without the need for additional reset operations or a separate reset mechanism. Immediate reset after tripping shortens the standby time, improving response speed and efficiency; moreover, the reset process is fully automatic, requiring no manual intervention or additional control, thus improving automation and reliability; furthermore, this invention fully utilizes the energy of the tripping component, achieving highly efficient energy utilization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the self-resetting mechanism of the on / off control device in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the closing holding assembly in Embodiment 1 of the present invention; Figure 3 This is another structural schematic diagram of the self-resetting mechanism of the on / off control device in Embodiment 1 of the present invention; Figure 4 This is another structural schematic diagram of the self-resetting mechanism of the on / off control device in Embodiment 2 of the present invention.

[0016] In the diagram, 1. First support plate; 2. Second support plate; 3. First support shaft; 4. Reset component; 5. Locking plate; 6. Locking groove; 7. First connecting rod; 8. Output shaft; 9. Second connecting rod; 10. Third connecting rod; 11. Third support plate; 12. Opening spring; 13. Positioning seat; 14. First elastic drive component; 15. Dynamic seal; 16. Manual energy storage component; 17. First mounting plate; 18. Second mounting plate; 19. Energy storage spring; 20. Manual opening switch; 21. Manual closing switch; 22. Second support shaft; 23. Connecting column. Detailed Implementation

[0017] The following description, with reference to schematic diagrams, illustrates a self-resetting mechanism for an on / off control device, a self-resetting device for a circuit breaker, and a circuit breaker according to the present invention. Preferred embodiments of the invention are shown. It should be understood that those skilled in the art can modify the invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the invention.

[0018] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0019] Example 1 Please refer to Figures 1-3 A self-reset mechanism for an on / off control device includes: a mounting component, a linkage component, a locking component, and a tripping component.

[0020] The mounting assembly is used to support the locking assembly and the linkage assembly; The locking component, the linkage component, and the tripping component are connected in sequence.

[0021] During the process of the locking component gradually moving from the initial position to the first position, the linkage component moves with the locking component and stores energy for the opening component.

[0022] When the locking component moves away from the first position, the opening component releases energy and drives the self-reset mechanism of the on / off control device to open.

[0023] When the tripping component releases energy, it also drives the linkage component to move. The linkage component drives the locking component to move to the second position to reset the on / off control device.

[0024] In this embodiment, the energy released by the tripping component during tripping is used to automatically drive the locking component to complete the reset through the linkage component, realizing the tripping and reset simultaneously without the need for an additional reset mechanism. The immediate reset after tripping shortens the standby time and improves the response speed and efficiency. Moreover, the reset process is fully automatic without manual intervention or additional control, improving the degree of automation and reliability. In addition, this embodiment also makes full use of the energy of the tripping component, achieving efficient energy utilization.

[0025] Furthermore, it also includes a reset component 4. The reset component 4 is disposed within the mounting assembly.

[0026] Specifically, under the action of external force, the reset component 4 pushes the locking assembly to gradually move from the initial position to the first position, until it finally leaves the first position. When the tripping component releases energy, the linkage component drives the locking assembly to move to a position that contacts the reset end of the reset component 4, so as to reset the on / off control device.

[0027] In this embodiment, the second position refers to the position where the locking component moves to the position where it interacts with the reset end of the reset component 4 after the locking component completes the opening action under the drive of the opening component. The interaction force refers to mechanical action such as contact, pushing, squeezing, and pressing.

[0028] In one specific example, the external force is applied by a motor, electromagnet, pneumatic cylinder, or hydraulic cylinder, which drives the reset component 4 to move the locking assembly via an electrical or hydrodynamic system.

[0029] In another specific example, the external force is generated based on a closing signal and a closing signal. Based on the closing signal, the reset component 4 receives the closing signal and triggers a mechanical action, pushing the locking assembly to gradually move from the initial position to the first position; based on the closing signal, the reset component 4 receives the closing signal and triggers a mechanical action, and the reset component 4 continues to push the locking assembly away from the first position.

[0030] Furthermore, the locking assembly includes a first support shaft 3, a first support plate 1, and a second support plate 2.

[0031] The locking assembly is rotatably connected to the mounting assembly. The first support plate 1 and the second support plate 2 are mounted on the first support shaft 3; the support shaft is also provided with a locking groove 6. The second support plate 2 is connected to the linkage assembly. The first support plate 1 drives the first support shaft 3 to rotate gradually, causing the locking groove 6 to gradually rotate from its initial position to a first position, and finally leave the first position.

[0032] In this embodiment, the mounting assembly includes a first mounting plate 17, a second mounting plate 18, and a connecting column 23; the first mounting plate 17 and the second mounting plate 18 are arranged opposite to each other, and the two ends of the connecting column 23 are fixedly connected to the first mounting plate 17 and the second mounting plate 18 respectively, forming a rigid support mounting frame structure.

[0033] In a specific example, one end of the first support shaft 3 is rotatably connected to the first mounting plate 17 via a bearing, and the other end is rotatably connected to the second mounting plate 18 via a bearing, so that the first support shaft 3 can rotate smoothly within the mounting assembly.

[0034] In another specific example, one end of the first support shaft 3 is connected to the mounting hole on the first mounting plate 17 through a bushing, and the other end is fixed to the second mounting plate 18 through a stop ring or retaining ring to restrict axial movement.

[0035] Furthermore, it also includes a closing retention component.

[0036] The closing and holding assembly includes a second support shaft 22, a locking plate 5, and a first elastic drive member 14; the locking plate 5 is sleeved on the second support shaft 22; the first elastic drive member 14 is sleeved on the second support shaft 22 and is arranged around the locking plate 5.

[0037] When the locking groove 6 moves to the first position, the locking plate 5 engages with the locking groove 6 under the force of the elastic drive member 14; when the locking groove 6 leaves the first position, the locking plate 5 overcomes the force and releases the engagement with the locking groove 6.

[0038] In this embodiment, the first position is the position where one end of the locking plate 5 is engaged with the locking groove 6. At this time, the self-reset mechanism of the on / off control device is in the closed state. When the locking groove 6 leaves the first position, that is, when one end of the locking plate 5 is no longer engaged with the locking groove 6, the opening component releases energy, causing the self-reset mechanism of the on / off control device to be in the open state.

[0039] In this embodiment, leaving the first position means that the locking plate 5 continues to rotate toward a position away from the reset component 4, and eventually disengages from the locking groove 6.

[0040] In one specific example, the first elastic drive element 14 is a compression spring, torsion spring, or tension spring. Of course, those skilled in the art can select different elastic elements, such as disc springs, leaf springs, rubber elastomers, or gas springs, according to the actual situation to meet different load and stroke requirements.

[0041] In another specific example, one end of the second support shaft 22 is fixedly connected to the first mounting plate 17 via a bearing seat, and the other end is rotatably or fixedly connected to the second mounting plate 18 via a pin or bolt. Whether the second support shaft 22 is allowed to rotate is determined according to design requirements.

[0042] In another specific example, in order to further stabilize the first elastic drive member 14 and ensure that its installation posture is consistent with the direction of the force, the first mounting plate 17 is also provided with a first elastic drive member 14 fixing member to fix the first elastic drive member 14 and prevent it from shifting, loosening or tilting during the operation, so as to improve the stability and consistency of locking and unlocking actions.

[0043] In this embodiment, when the tripping component releases energy, the linkage component drives the locking component to move to a position that contacts the reset end of the reset component 4. Specifically, the second support plate 2 moves along a predetermined trajectory toward the reset component 4 under the drive of the linkage component, and the rotation of the first support shaft 3 drives the first support plate 1 to rotate synchronously, so that a specific part of the first support plate 1 interacts with the reset end of the reset component 4, that is, mechanical contact or collision occurs. This contact action triggers the reset mechanism of the reset component 4, thereby completing the position restoration of the locking component and the overall reset of the mechanism.

[0044] Furthermore, it also includes: dynamic seal 15.

[0045] The dynamic seal 15 is located inside the mounting assembly and connected to the linkage assembly; the mounting assembly is provided with an interface for connecting to the on / off control device.

[0046] In this embodiment, the position of the dynamic seal 15 can be set according to the position, stroke, speed requirements, and load characteristics of the linkage mechanism. This allows the same mechanism design to be adapted to different specifications of circuit breaker products through parameter adjustments, improving versatility and design flexibility.

[0047] Furthermore, the linkage assembly includes a first connecting rod 7, an output shaft 8, a second connecting rod 9, a third connecting rod 10, and a third support plate 11, which are rotatably connected in sequence. One end of the first connecting rod 7 is rotatably connected to the second support plate 2. One end of the third support plate 11 is rotatably connected to the dynamic seal 15. The output shaft 8 is rotatably connected to the mounting assembly.

[0048] In a specific example, the dynamic seal 15 is fixedly installed on the circuit breaker body or frame, and has bearings or bushings inside to support the rotating components (such as the third support plate 11 or the output shaft 8) in the linkage assembly, allowing them to rotate freely. The dynamic seal 15, through its fixed position and support stiffness, defines the movement trajectory and stroke of the linkage assembly, thereby indirectly controlling the opening and closing actions of the on / off control device. When an external force is transmitted through the assembly supported by the dynamic seal 15, it drives the locking assembly to release and triggers the opening; during reset, the dynamic seal 15 continues to provide support, allowing the linkage assembly to smoothly reset to its initial position under the drive of the opening energy.

[0049] In another specific example, the first connecting rod 7, the output shaft 8, the second connecting rod 9, the third connecting rod 10, the third support plate 11, and the dynamic seal 15 are sequentially hinged. One end of the first connecting rod 7 is hinged to the second support plate 2. One end of the third support plate 11 is hinged to the dynamic seal 15. The output shaft 8 is mounted on the mounting assembly via a bushing.

[0050] Furthermore, the tripping assembly includes a tripping spring 12, a positioning seat 13, and a bearing assembly (not shown in the figure). One end of the tripping spring 12 is connected to the positioning seat 13, and the other end is connected to the third support plate 11. The positioning seat 13 is fixed to the bearing assembly.

[0051] Specifically, the movement of the linkage component and the tripping component to achieve the closing action is as follows: When a closing command is received, the reset component 4 pushes the first support plate 1 to drive the first support shaft 3 and its locking groove 6 to rotate gradually. During the rotation of the locking groove 6, the second support plate 2 pushes the first connecting rod 7 to move. The first connecting rod 7 drives the output shaft 8 to rotate. The output shaft 8 then drives the second connecting rod 9, the third connecting rod 10 and the third support plate 11 to move in sequence. During the movement, the third support plate 11 gradually stretches or compresses the tripping spring 12, so that the tripping spring 12 stores energy. When the locking groove 6 rotates to the first position, the locking plate 5 automatically embeds into the locking groove 6 under the action of the first elastic drive component 14 to form a mechanical lock. At this time, the tripping spring 12 is in an energy storage state, completing the closing action and maintaining the closed state.

[0052] The tripping action is achieved as follows: When a tripping command is received, the reset component 4 continues to push the first support plate 1, causing the locking groove 6 to rotate under external force. This overcomes the force of the first elastic drive component 14, causing the locking plate 5 to disengage from the locking groove 6 and releasing the mechanical lock. At this time, the tripping spring 12, which is in an energy storage state, instantly releases energy, pushing or pulling the third support plate 11 to move rapidly. The third support plate 11 transmits the motion to the second support plate 2 through a linkage mechanism composed of the third connecting rod 10, the second connecting rod 9, the output shaft 8, and the first connecting rod 7, driving the first support shaft 3 to rotate in the opposite direction, thus achieving rapid tripping. Simultaneously, the energy released by the tripping spring 12 continuously drives the linkage component to move, causing the first support plate 1 to impact the reset end of the reset component 4 through the second support plate 2, automatically resetting the locking component to the initial or second position, completing the automatic reset process. The entire tripping and reset process is continuous and requires no additional operation.

[0053] In this embodiment, the tripping assembly is not installed within the mounting assembly, but is independently mounted on the body or frame of the on / off control device via a support assembly. This design makes the installation position of the tripping assembly more flexible and can be adjusted according to the actual space layout and installation requirements. At the same time, the separate design of the tripping assembly and the mounting assembly facilitates the modular installation and maintenance of the self-resetting mechanism of the on / off control device. The tripping spring 12 can be replaced or the parameters of the tripping assembly can be adjusted separately without disassembling the entire mounting assembly. In addition, this arrangement improves the adaptability and versatility of the mechanism, can be adapted to different models and specifications of on / off control devices, and reduces design and manufacturing costs.

[0054] The self-reset mechanism of the on / off control device described in this embodiment can be applied to the operating mechanism of electrical switching equipment such as circuit breakers, load switches, disconnect switches, contactors, and relays. It can also be applied to the drive mechanism of mechanical control devices such as valves and gates. Furthermore, it can be applied to control systems that require automatic reset functions, such as railway turnout switching devices, elevator door lock devices, and safety interlocking devices. No specific limitations are imposed here.

[0055] Example 2 Based on the same inventive concept, this embodiment discloses a circuit breaker self-resetting device, wherein the self-resetting mechanism of the on / off control device adopts the self-resetting mechanism of the on / off control device disclosed in Embodiment 1.

[0056] Please refer to Figure 3 and Figure 4 In one specific example, the circuit breaker self-reset device further includes: The energy storage spring 19 is mounted on the first mounting plate 17, and one end near the second mounting plate 18 is connected to the first gear via a connector.

[0057] A manual energy storage component 16 is disposed through the first mounting plate 17 and the second mounting plate 18. The manual energy storage component 16 includes a second gear, which meshes with the first gear. Under the action of an external force, the second gear drives the first gear to rotate, thereby storing energy for the energy storage spring 19.

[0058] In a specific example, the manual energy storage component 16 includes a hand crank or a manual wrench. Rotation of the hand crank drives the second gear to rotate, which meshes with the first gear. The rotation of the first gear stretches or compresses the energy storage spring 19 via a connecting member, completing the manual energy storage process. The manual energy storage component 16 is mainly used for manual energy storage operations in emergency situations such as power outages and motor failures. It can also be used for mechanism testing during equipment installation, commissioning, maintenance, and repair.

[0059] The manual trip switch 20 is installed through the first mounting plate 17 and the second mounting plate 18. Under the action of external force, the manual trip switch 20 drives the first support shaft 3 to rotate, so that the locking groove 6 is released from locking with one end of the locking plate 5, thereby manually controlling the trip.

[0060] The manual closing switch 21 is installed through the first mounting plate 17 and the second mounting plate 18. Under the action of external force, the manual opening switch 20 drives the locking groove in another locking assembly to rotate and engage with the locking plate in another closing holding assembly, thereby manually controlling the closing.

[0061] In a specific example, the manual trip switch 20 and the manual close switch 21 are buttons, levers, shafts, or pull rope mechanisms. Operators apply external force by pressing, tossing, rotating, or pulling to trigger the tripping and closing actions. The manual trip switch 20 and the manual close switch 21 are mainly used for emergency tripping, manual tripping operations in case of power failure, and manual testing during equipment maintenance and repair.

[0062] It is understood that, in addition to the components mentioned above, the circuit breaker self-reset device may also include electromagnetic trip units, thermal overload protectors, undervoltage trip units, shunt trip units, indicating mechanisms (such as open / close position indicators and energy storage status indicators), auxiliary contact components, buffer devices, limit devices, and regulating devices. These components can be used individually or in combination to meet the diverse needs of circuit breakers of different specifications and application scenarios in terms of energy storage methods, operating methods, protection functions, and status monitoring. No specific restrictions are imposed here.

[0063] Example 3 This embodiment discloses a circuit breaker, including the circuit breaker self-resetting mechanism disclosed in Embodiment 2. The circuit breaker self-resetting mechanism is connected to the contact switch of the circuit breaker and is used to control the opening and closing state of the contact switch.

[0064] In this embodiment, the circuit breaker can be of various types, such as molded case circuit breaker, frame circuit breaker, miniature circuit breaker, vacuum circuit breaker, sulfur hexafluoride circuit breaker, residual current circuit breaker, DC circuit breaker, smart circuit breaker, generator circuit breaker, isolating circuit breaker, fast circuit breaker, current limiting circuit breaker, dual power automatic transfer circuit breaker, motor protection circuit breaker, photovoltaic circuit breaker, energy storage system circuit breaker, outdoor circuit breaker, mining explosion-proof circuit breaker, marine circuit breaker, or rail transit circuit breaker, covering different voltage levels such as low voltage, medium voltage, and high voltage, and adaptable to various capacity ranges from small current to large current. It can be applied to various occasions such as industrial power distribution, building power distribution, power system, new energy power generation, rail transit, ships, mines, and data centers.

[0065] Various modifications and variations are possible without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A self-resetting mechanism for an on / off control device, characterized in that, Includes installation components, linkage components, locking components, and tripping components; The mounting assembly is used to support the locking assembly and the linkage assembly; The locking assembly, the linkage assembly, and the tripping assembly are connected in sequence; During the process of the locking component moving from the initial position to the first position, the linkage component moves with the locking component and stores energy for the opening component; When the locking component moves away from the first position, the opening component releases energy and drives the on / off control device self-reset mechanism to open; When the tripping component releases energy, it drives the linkage component to move, and the linkage component drives the locking component to move to the second position to reset the on / off control device.

2. The self-resetting mechanism of the on / off control device as described in claim 1, characterized in that, It also includes a reset component; The reset component is disposed within the mounting assembly; Under the action of external force, the reset component pushes the locking component to gradually move from the initial position to the first position until it finally leaves the first position; When the tripping component releases energy, the linkage component drives the locking component to a position where it can interact with the reset end of the reset component, thereby resetting the on / off control device.

3. The self-resetting mechanism of the on / off control device as described in claim 1 or 2, characterized in that, The locking assembly includes a first support shaft, a first support plate, and a second support plate; The locking assembly is rotatably connected to the mounting assembly; The first support plate and the second support plate are disposed on the first support shaft; the support shaft is also provided with a locking groove; The second support plate is connected to the linkage component; Under the action of external force, the reset component pushes the first support plate to rotate gradually, and the first support plate drives the first support shaft to rotate gradually, so that the locking groove gradually rotates from the initial position to the first position, and finally leaves the first position.

4. The self-resetting mechanism of the on / off control device as described in claim 3, characterized in that, It also includes a closing retention component; The closing and holding assembly includes a second support shaft, a locking plate, and an elastic drive member; the locking plate is sleeved on the second support shaft; the elastic drive member is sleeved on the second support shaft and arranged around the locking plate; When the locking groove moves to the first position, the locking plate forms an engagement with one end of the locking plate under the action of the elastic drive member; When the locking groove moves away from the first position, the locking plate overcomes the force and releases the locking from one end of the locking plate.

5. The self-resetting mechanism of the on / off control device as described in claim 4, characterized in that, Also includes: Dynamic seal; The dynamic seal is located inside the mounting assembly and is connected to the linkage assembly; The mounting component is provided with an interface for connecting to an on / off control device.

6. The self-resetting mechanism of the on / off control device as described in claim 5, characterized in that, The linkage assembly includes a first connecting rod, an output shaft, a second connecting rod, a third connecting rod, and a third support plate that are rotatably connected in sequence. One end of the first connecting rod is rotatably connected to the second support plate; one end of the third support plate is rotatably connected to the dynamic seal. The output shaft is rotatably connected to the mounting assembly.

7. The self-resetting mechanism of the on / off control device as described in claim 6, characterized in that, The first connecting rod, the output shaft, the second connecting rod, the third connecting rod, and the third support plate are hinged in sequence.

8. The self-resetting mechanism of the on / off control device as described in claim 7, characterized in that, The tripping assembly includes a tripping spring, a positioning seat, and a load-bearing assembly; One end of the trip spring is connected to the positioning seat, and the other end is connected to the third support plate; The positioning seat is fixed to the bearing assembly.

9. A circuit breaker self-reset device, characterized in that, The circuit breaker self-reset mechanism includes the on / off control device self-reset mechanism as described in any one of claims 1-8.

10. A circuit breaker, characterized in that, The circuit breaker includes a circuit breaker self-reset mechanism as described in claim 9, the circuit breaker self-reset mechanism being connected to the contact switch of the circuit breaker and used to control the opening and closing state of the contact switch.

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