Universal circuit breaker and its tripping method

Abstract

The present invention relates to the technical field of circuit breakers, and specifically relates to an air circuit breaker and its tripping method. The air circuit breaker includes a box body (1), a cover plate (2) is fixed at the front end of the box body (1); a switching mechanism mounting bracket (3) is fixed inside the box body (1); a tripping rotating shaft (4); a manual disconnection button (5), a driving plate (6) is provided at the tail end of the tripping rotating shaft (4), and a driving device for driving the driving plate (6) to rotate is fixed on the cover plate (2). When the driving device drives the driving plate (6) to rotate, the driving plate (6) drives the tripping rotating shaft (4) to rotate. When one of the tripping structures is jammed or fails, another method can be selected for tripping, ensuring the stable use of the circuit breaker. When the driving device is used for electric control tripping, remote operation can be performed, or, in an emergency, remote tripping can be carried out, thereby protecting the operators.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and specifically to an all-in-one circuit breaker and its tripping method. Background Art

[0002] An all-in-one circuit breaker is a switching device that can close, carry, and interrupt the current under normal circuit conditions and can close, carry, and interrupt the current under abnormal circuit conditions within a specified time.

[0003] The all-in-one circuit breaker is widely used in hydropower stations. In the prior art, the working state of the all-in-one circuit breaker is generally in the tripped or closed state. The tripping of the all-in-one circuit breaker is generally achieved by pressing a manual disconnection button. After the manual disconnection button drives the tripping rotating shaft to rotate, it drives the tripping mechanism of the all-in-one circuit breaker to unhook, so that the all-in-one circuit breaker trips. However, since the manual disconnection button is a mechanical structure, after being used for a long time, it may get stuck, making it difficult for the operator to press the manual disconnection button to trip the all-in-one circuit breaker, which affects the use of the all-in-one circuit breaker. Summary of the Invention

[0004] The present invention aims to solve at least one of the above technical problems.

[0005] The technical problem to be solved by the present invention is to provide at least an all-in-one circuit breaker that can ensure the effective completion of the tripping operation of the circuit breaker.

[0006] To solve the above technical problem, the all-in-one circuit breaker of the present invention includes a box body, a cover plate, a closing and tripping mechanism mounting frame, a tripping rotating shaft, and a manual disconnection button; the cover plate is fixed to the front end of the box body, the closing and tripping mechanism mounting frame is fixed inside the box body, and the tripping rotating shaft is rotatably connected to the closing and tripping mechanism mounting frame; the manual disconnection button is hinged to the closing and tripping mechanism mounting frame, and the manual disconnection button is drivingly connected to the tripping rotating shaft. When the manual disconnection button is pressed, the manual disconnection button drives the tripping rotating shaft to rotate; a driving plate is provided at the tail end of the tripping rotating shaft, and a driving device for driving the driving plate to rotate is fixed on the cover plate. The driving device is drivingly connected to the driving plate. When the driving device drives the driving plate to rotate, the driving plate drives the tripping rotating shaft to rotate.

[0007] After adopting the above solution, it has at least the following advantages:

[0008] Since both the manual disconnection button and the driving device can drive the opening shaft to rotate, causing the universal circuit breaker to trip, and the two driving methods are independently set. The driving device can specifically adopt a remote electric control structure, such as an electromagnet, an electric push rod, etc. The operator can choose manual tripping or electric control tripping according to the specific actual situation. In this way, when one of the tripping structures jams or malfunctions, the other method can be selected for tripping, ensuring the stable use of the universal circuit breaker. For example, the manual disconnection button may experience mechanical jamming after long-term use. At this time, the driving device can be used for electric control tripping to ensure the effective completion of the tripping operation. Or, for example, if there is a problem with the driving device circuit, the manual disconnection button can be used for manual tripping at this time to ensure the effective completion of the tripping operation.

[0009] When using the driving device for electric control tripping, remote operation can be carried out. That is to say, the operator no longer needs to approach the universal circuit breaker to trip the universal circuit breaker, thus realizing remote control of the universal circuit breaker and saving time. Or, in an emergency, remote tripping can be carried out, thus protecting the operator.

[0010] In this application, the manual disconnection button and the driving device are independently set, with a simple structure, complementary but non-interfering, thus ensuring the effective completion of the tripping operation of the universal circuit breaker.

[0011] The driving device includes an electromagnet. The electromagnet includes an electromagnetic coil and a push rod movably connected to the electromagnetic coil. The electromagnetic coil is fixed inside the cover plate. When the electromagnet is energized, the push rod abuts against the driving plate and pushes the driving plate to rotate. The electromagnet is electrically connected to the electric control switch of the universal circuit breaker. The electromagnet can be remotely controlled through the electric control switch. When the electric control switch controls the electromagnet to be energized, the electromagnet drives the push rod to move. After the push rod moves, it pushes the driving plate to rotate. The driving plate drives the opening shaft to rotate. After the opening shaft rotates, it drives the tripping mechanism of the universal circuit breaker to unhook, thus causing the universal circuit breaker to trip. When the electric control switch controls the electromagnet to be de-energized, the push rod resets. Of course, the driving device can also be an electric push rod. Or the driving device can also be a motor, with a swing rod provided on the rotating shaft of the motor, and the swing rod abuts against the driving plate, etc.

[0012] The present application also discloses a tripping method for a universal circuit breaker. When manual tripping is required, press the manual disconnection button. The top of the adjusting push rod on the manual disconnection button abuts against the driving plate and pushes the driving plate to rotate. The driving plate drives the tripping rotating shaft to rotate, and then drives the tripping mechanism of the universal circuit breaker to unhook, so that the universal circuit breaker trips; when the manual disconnection button fails or remote electric control tripping is required, when the electromagnetic switch controls the electromagnet to be energized, the electromagnet drives the push rod to move. After the push rod moves, it pushes the driving plate to rotate. The driving plate drives the tripping rotating shaft to rotate. After the tripping rotating shaft rotates, it drives the tripping mechanism of the universal circuit breaker to unhook, so that the universal circuit breaker trips.

[0013] After adopting the above method, the operator can choose manual tripping or electric control tripping according to the specific actual situation. In this way, when one of the tripping structures is stuck or fails, another method can be selected for tripping, ensuring the stable use of the universal circuit breaker; when using the driving device for electric control tripping, remote operation can be performed. That is to say, the operator no longer needs to approach the universal circuit breaker to perform the tripping operation on the universal circuit breaker, so as to realize remote control of the universal circuit breaker and save time. Or, in an emergency, remote tripping can be performed, thus protecting the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the universal circuit breaker of the present application.

[0015] Figure 2 is a schematic structural diagram at the cover plate of the universal circuit breaker of the present application.

[0016] Figure 3 is a schematic structural diagram at the tripping rotating shaft of the universal circuit breaker of the present application.

[0017] Figure 4 is a schematic side view at the tripping rotating shaft of the universal circuit breaker of the present application.

[0018] Figure 5 is a schematic exploded view at the tripping rotating shaft of the universal circuit breaker of the present application.

[0019] Figure 6 is an exploded view of the driving plate and the tripping rotating shaft.

[0020] Wherein: 1, box body; 2, cover plate; 3, installation frame for closing and tripping mechanism; 4, tripping rotating shaft; 5, manual disconnection button; 6, driving plate; 7, electromagnetic coil; 8, push rod; 9, installation plane; 10, installation hole; 11, fixing hole; 12, bolt and nut parts; 13, driving top plate; 14, adjusting push rod; 15, threaded hole; 16, positioning nut; 17, spring washer; 18, manual closing button; 19, reset torsion spring; 20, relief groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The inventive concepts of the present disclosure will be described below using terms that are commonly used by those skilled in the art to convey the substance of their work to other skilled persons in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein. These embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope it encompasses to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. Components, steps, or elements from one embodiment may be assumed to be present or used in another embodiment. Without departing from the scope of the embodiments of the present disclosure, various alternative and / or equivalent implementations may be substituted for the specific embodiments shown and described. This application is intended to cover any modifications or variations of the embodiments discussed herein. It will be apparent to those skilled in the art that alternative embodiments may be practiced using only some of the aspects described. For purposes of illustration, specific numbers, materials, and configurations are described in the embodiments, however, those skilled in the art may also practice alternative embodiments without these specific details. In other instances, well-known features may be omitted or simplified so as not to render the illustrative embodiments difficult to understand.

[0022] In addition, the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "provided with", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. "Fixed" may be a threaded connection, a welded connection, or a bolted connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] As Figure 1-6, in one embodiment, a universal circuit breaker includes a box body 1, a cover plate 2, a closing and opening mechanism mounting bracket 3, a tripping rotating shaft 4, a manual tripping button 5, and a manual closing button 18; the cover plate 2 is fixed to the front end of the box body 1, the closing and opening mechanism mounting bracket 3 is fixed inside the box body 1, and the tripping rotating shaft 4 is rotatably connected to the closing and opening mechanism mounting bracket 3; the manual tripping button 5 is hinged to the closing and opening mechanism mounting bracket 3, and the manual tripping button 5 is drivingly connected to the tripping rotating shaft 4. When the manual tripping button 5 is pressed, the manual tripping button 5 drives the tripping rotating shaft 4 to rotate; a driving plate 6 is provided at the tail end of the tripping rotating shaft 4, and a driving device for driving the driving plate 6 to rotate is fixed on the cover plate 2. The driving device is drivingly connected to the driving plate 6. When the driving device drives the driving plate 6 to rotate, the driving plate 6 drives the tripping rotating shaft 4 to rotate.

[0025] The manual closing button 18 is hinged to the closing and opening mechanism mounting bracket 3. After the universal circuit breaker is energized, pressing the manual closing button 18 can close the universal circuit breaker. This is also the basic structure of the universal circuit breaker, so the specific structure will not be described in detail.

[0026] The box body 1 and the cover plate 2 form a relatively sealed structure. Components such as the closing and opening mechanism mounting bracket 3, the tripping rotating shaft 4, the manual tripping button 5, the driving plate 6, the electromagnet, and the push rod 8 are all arranged inside the relatively sealed structure formed by the box body 1 and the cover plate 2, so as to ensure that it is not interfered by the outside world during operation and to prevent people from touching the internal components; a relief hole is provided on the cover plate 2, and the operator can press the end of the manual tripping button 5 and the end of the manual closing button 18 through the relief hole.

[0027] A return torsion spring 19 is provided on the tripping rotating shaft 4. The return torsion spring 19 is used to reset after the tripping rotating shaft 4 rotates. One end of the return torsion spring 19 is hooked to the driving plate 6, and the other end of the return torsion spring 19 is hooked to the closing and opening mechanism mounting bracket 3.

[0028] The tripping rotating shaft 4 is drivingly connected to the tripping mechanism of the universal circuit breaker. The tripping mechanism of the universal circuit breaker is movably connected to the closing and opening mechanism mounting bracket 3. The specific driving connection between the tripping rotating shaft 4 and the tripping mechanism of the universal circuit breaker can be: a relief groove 20 is provided at one end of the tripping rotating shaft 4 away from the driving plate 6, and the tripping mechanism is clamped to the side wall of the tripping rotating shaft 4. When the tripping rotating shaft 4 rotates, the tripping mechanism slides off and disengages from the relief groove 20, thereby realizing tripping. This is the basic structure of the universal circuit breaker, so the specific structure of the tripping mechanism will not be described in detail. Those skilled in the art should be able to understand. Of course, the driving connection between the tripping rotating shaft 4 and the tripping mechanism of the universal circuit breaker can also be other driving methods.

[0029] The upper end of the manual disconnection button 5 is provided with a "press" sign to prompt the operator to press it when a switch-off is required. The manual disconnection button 5 is hinged, so that when the manual disconnection button 5 is pressed, the manual disconnection button 5 can rotate relative to its original position. Of course, a return spring can be provided at the hinged position of the manual disconnection button 5. After the manual disconnection button 5 is pressed, the return spring can reset the manual disconnection button 5 to its original position;

[0030] The driving device includes an electromagnet, which includes an electromagnetic coil 7 and a push rod 8 movably connected to the electromagnetic coil. The electromagnetic coil 7 is fixed inside the cover plate 2. When the electromagnet is energized, the push rod 8 abuts against the driving plate 6 and pushes the driving plate 6 to rotate. The electromagnet includes an electromagnetic coil 7 and a push rod 8, and a return spring is provided on the push rod 8. This is the basic structure of the electromagnet. When the electromagnet is energized, the magnetic force generated by it makes the push rod move in a straight line. This is the prior art and should be well-known to those skilled in the art. The electromagnet is electrically connected to the electric control switch of the universal circuit breaker, and the electromagnet can be remotely controlled through the electric control switch. When the electric control switch controls the electromagnet to be energized, the electromagnet drives the push rod 8 to move. After the push rod 8 moves, it pushes the driving plate 6 to rotate. The driving plate 6 drives the circuit breaker tripping shaft 4 to rotate. After the circuit breaker tripping shaft 4 rotates, it drives the tripping mechanism of the universal circuit breaker to unhook, so that the universal circuit breaker trips; when the electric control switch controls the electromagnet to be de-energized, the push rod 8 resets. In this embodiment, the push rod 8 is located above the driving plate 6. Of course, the driving device can also be an electric push rod. Or the driving device can also be a motor, and a swing rod is provided on the rotating shaft of the motor, and the swing rod abuts against the driving plate 6 and so on. The electric control switch can specifically be an operation switch provided in the main monitoring room, or the electric control switch can be provided on the box body of the universal circuit breaker, or it can be set on a mobile phone APP or other user terminals through wireless communication, and so on.

[0031] The contact point of the push rod 8 and the driving plate 6 deviates from the axis line of the circuit breaker tripping shaft 4. When deviating from the axis line, the rotation of the driving plate 6 can be better. The greater the distance from the axis line, according to the lever principle, the smaller the driving force required for the driving plate 6 to rotate. Thus, a small-sized electromagnet can be appropriately used, and the effect of pushing the driving plate 6 to rotate can also be achieved, saving resources.

[0032] The driving plate 6 is right-angled, and the push rod 8 abuts against the horizontal side of the driving plate 6, and the push rod 8 pushes the driving plate 6 to rotate downward. The downward rotation method makes the gravity also have a certain role in assisting the driving of the driving plate 6, so it can be more labor-saving and make the rotation of the driving plate 6 better.

[0033] The drive plate 6 is right-angled. An installation plane 9 is provided on the switching-off rotating shaft 4. The vertical surface of the drive plate 6 is fixedly attached to the installation plane 9, and the horizontal surface of the drive plate 6 is attached to the upper end of the switching-off rotating shaft 4. After the switching-off rotating shaft 4 has the installation plane 9, the contact mode between it and the drive plate 6 can be surface-to-surface contact, the contact area becomes larger, the fitting between the switching-off rotating shaft 4 and the drive plate 6 is better, so that their fixed connection is more reliable, and thus the drive plate 6 drives the switching-off rotating shaft 4 to rotate more stably. In addition, the horizontal surface is attached to the upper end of the switching-off rotating shaft 4, and the upper end of the switching-off rotating shaft 4 can play a certain supporting role for the drive plate 6.

[0034] An installation hole 10 is provided on the switching-off rotating shaft 4. The installation hole 10 penetrates through the installation plane 9. A fixing hole 11 is provided on the drive plate 6. The drive plate 6 is fixedly connected to the switching-off rotating shaft 4 through a bolt and nut member 12. The bolt and nut member 12 is arranged through the installation hole 10 and the fixing hole 11. Fixing with the bolt and nut member 12 can facilitate disassembly and is convenient for maintenance or inspection.

[0035] The specific connection between the manual disconnection button 5 and the switching-off rotating shaft 4 means that: a drive top plate 13 is provided on the manual disconnection button 5, and an adjusting top rod 14 is provided on the drive top plate 13 in a position-adjustable manner. The top of the adjusting top rod 14 faces the drive plate 6. When the manual disconnection button 5 is pressed, the top of the adjusting top rod 14 abuts against the drive plate 6 and pushes the drive plate 6 to rotate. Since the length of the adjusting top rod 14 is adjustable, during assembly, the distance between the adjusting top rod 14 and the drive plate 6 can be adjusted according to the specific working conditions, so that the pressing distance of the manual disconnection button 5 can be adjusted. For example, when higher sensitivity is required, the adjusting top rod 14 can be adjusted to directly abut against the drive plate 6, so that when the manual disconnection button 5 is slightly pressed, the adjusting top rod 14 can be touched to push the drive plate 6, causing the switching-off rotating shaft 4 to rotate and switch off. When lower sensitivity is required, the distance between the adjusting top rod 14 and the drive plate 6 can be adjusted to be far, so that when the manual disconnection button 5 is pressed deeper, the adjusting top rod 14 can be touched to push the drive plate 6 to cause the switching-off rotating shaft 4 to rotate and switch off. The design of this structure gives users multiple operation options.

[0036] The adjustable position of the adjusting push rod 14 on the driving top plate 13 means that the driving top plate 13 has a threaded hole 15, and the adjusting push rod 14 is threadedly connected to the threaded hole 15. In this way, by rotating the adjusting push rod 14, the position of the adjusting push rod 14 in the threaded hole can be adjusted, so that the distance between the top of the adjusting push rod 14 and the driving plate 6 can be adjusted. Further improvement can be made that a positioning nut 16 is threadedly connected to the adjusting push rod 14, and a spring washer 17 is sleeved on the adjusting push rod 14. When the adjusting push rod 14 is threadedly connected to the threaded hole 15, the positioning nut 16 abuts against the surface of the driving top plate 13 through the spring washer 17. During use, after adjusting the position of the positioning nut 16 on the adjusting push rod 14, the spring washer 17 is sleeved on the adjusting push rod 14, and then threadedly connected to the threaded hole 15, so that the adjusting push rod 14 is relatively fixed.

[0037] The contact point of the adjusting push rod 14 and the driving plate 6 deviates from the axis line of the opening / closing rotating shaft 4.

[0038] The universal circuit breaker of the present application can be fixedly installed and used in a circuit cabinet.

[0039] Since both the manual disconnect button 5 and the driving device can drive the opening / closing rotating shaft 4 to rotate, so that the universal circuit breaker opens, and the two driving methods are independently set. The driving device can specifically adopt a remote electric control structure, such as an electromagnet, an electric push rod, etc. The operator can choose manual opening or electric control opening according to the specific actual situation. In this way, when one of the opening structures jams or malfunctions, another method can be selected for opening, ensuring the stable use of the universal circuit breaker; for example, the manual disconnect button 5 may have a mechanical jam after long-term use, and at this time, the driving device can be used for electric control opening to ensure that the opening work can be effectively completed; or for example, if there is a problem with the driving device circuit, at this time, the manual disconnect button 5 can be used for manual opening to ensure that the opening work can be effectively completed.

[0040] When using the driving device for electric control opening, remote operation can be performed, that is to say, the operator no longer needs to approach the universal circuit breaker to perform the opening operation on the universal circuit breaker, so as to realize remote control of the universal circuit breaker and save time. Or, in an emergency, remote opening can be performed, so as to protect the operator.

[0041] In the present application, the manual disconnect button 5 and the driving device are independently set, with a simple structure, complementary but non-interfering with each other, so as to ensure the effective completion of the opening work of the universal circuit breaker.

[0042] For the above-mentioned opening method of the universal circuit breaker, when manual opening is required, press the manual disconnection button 5. The top of the adjusting ejector rod 14 on the manual disconnection button 5 abuts against the driving plate 6 and drives the driving plate 6 to rotate. The driving plate 6 drives the opening rotating shaft 4 to rotate, and then drives the tripping mechanism of the universal circuit breaker to unhook, so that the universal circuit breaker opens. When the manual disconnection button 5 fails or remote electric control opening is required, when the electromagnetic switch controls the electromagnet to be energized, the electromagnet drives the push-pull rod 8 to move. After the push-pull rod 8 moves, it drives the driving plate 6 to rotate. The driving plate 6 drives the opening rotating shaft 4 to rotate. After the opening rotating shaft 4 rotates, it drives the tripping mechanism of the universal circuit breaker to unhook, so that the universal circuit breaker opens.

[0043] The operator can choose manual opening or electric control opening according to the specific actual situation. In this way, when one of the opening structures is jammed or fails, another method can be selected for opening, ensuring the stable use of the universal circuit breaker. For example, after the manual disconnection button 5 is used for a long time, mechanical jamming may occur. At this time, the driving device can be used for electric control opening to ensure the effective completion of the opening operation. Or, for example, if there is a problem with the driving device circuit, the manual disconnection button 5 can be used for manual opening at this time to ensure the effective completion of the opening operation.

[0044] When using the driving device for electric control opening, remote operation can be performed. That is to say, the operator no longer needs to approach the universal circuit breaker to perform the opening operation on the universal circuit breaker, so as to realize remote control of the universal circuit breaker and save time. Or, in an emergency, remote opening can be performed, thus protecting the operator.

[0045] As mentioned above, it is only a preferred and feasible implementation example of the present invention, and the scope of the rights of the present invention cannot be limited thereby. For those skilled in the art, all other corresponding changes made by using the technical solutions and technical concepts of the present invention should fall within the protection scope of the claims of the present invention.

Claims

1. A universal circuit breaker, characterized in that, It includes a box body (1), a cover plate (2), a closing and opening mechanism mounting bracket (3), a tripping rotating shaft (4), and a manual disconnection button (5); the cover plate (2) is fixed at the front end of the box body (1), the closing and opening mechanism mounting bracket (3) is fixed inside the box body (1), and the tripping rotating shaft (4) is rotatably connected to the closing and opening mechanism mounting bracket (3); the manual disconnection button (5) is hinged to the closing and opening mechanism mounting bracket (3), the manual disconnection button (5) is drivingly connected to the tripping rotating shaft (4), and when the manual disconnection button (5) is pressed, the manual disconnection button (5) drives the tripping rotating shaft (4) to rotate; a driving plate (6) is provided at the tail end of the tripping rotating shaft (4), a driving device for driving the driving plate (6) to rotate is fixed on the cover plate (2), the driving device is drivingly connected to the driving plate (6), and when the driving device drives the driving plate (6) to rotate, the driving plate (6) drives the tripping rotating shaft (4) to rotate; the driving device includes an electromagnet, and the electromagnet includes an electromagnetic coil (7) and a push rod (8) movably connected to the electromagnetic coil. The electromagnetic coil (7) is fixed inside the cover plate (2). When the electromagnet is powered on, the push rod (8) abuts against the driving plate (6) and pushes the driving plate (6) to rotate; the contact point between the push rod (8) and the driving plate (6) deviates from the axis line of the tripping rotating shaft (4); the driving plate (6) is right-angled, the push rod (8) abuts against the horizontal side of the driving plate (6), and the push rod (8) pushes the driving plate (6) to rotate downward; an installation plane (9) is provided on the tripping rotating shaft (4), the vertical surface of the driving plate (6) is fixedly attached to the installation plane (9), and the horizontal surface of the driving plate (6) is attached to the upper end of the tripping rotating shaft (4); a driving top plate (13) is provided on the manual disconnection button (5), an adjusting top rod (14) is provided on the driving top plate (13) in a position-adjustable manner, the top of the adjusting top rod (14) faces the driving plate (6), and when the manual disconnection button (5) is pressed, the top of the adjusting top rod (14) abuts against the driving plate (6) and pushes the driving plate (6) to rotate; the contact point between the adjusting top rod (14) and the driving plate (6) deviates from the axis line of the tripping rotating shaft (4).

2. The universal circuit breaker according to claim 1, characterized in that, An installation hole (10) is provided on the tripping rotating shaft (4), the installation hole (10) penetrates through the installation plane (9), a fixing hole (11) is provided on the driving plate (6), and the driving plate (6) is fixedly connected to the tripping rotating shaft (4) through a bolt and nut assembly (12), and the bolt and nut assembly (12) is arranged through the installation hole (10) and the fixing hole (11).

3. The universal circuit breaker according to claim 1, characterized in that, The fact that the adjusting top rod (14) is provided on the driving top plate (13) in a position-adjustable manner means that a threaded hole (15) is provided on the driving top plate (13), and the adjusting top rod (14) is threadedly connected to the threaded hole (15).

4. A tripping method for the universal circuit breaker according to any one of claims 1 to 3, characterized in that, When manual opening is required, press the manual disconnection button (5). The top of the adjusting ejector rod (14) on the manual disconnection button (5) abuts against the driving plate (6) and pushes the driving plate (6) to rotate. The driving plate (6) drives the opening rotating shaft (4) to rotate, and then drives the tripping mechanism of the circuit breaker to unhook, causing the circuit breaker to open. When the manual disconnection button (5) fails or remote electric control opening is required, when the electromechanical switch controls the electromagnet to be energized, the electromagnet drives the push-pull rod (8) to move. After the push-pull rod (8) moves, it pushes the driving plate (6) to rotate. The driving plate (6) drives the opening rotating shaft (4) to rotate. After the opening rotating shaft (4) rotates, it drives the tripping mechanism of the circuit breaker to unhook, causing the circuit breaker to open.

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