10kv outdoor vacuum circuit breaker

Abstract

This invention discloses a 10KV outdoor vacuum circuit breaker, specifically relating to the field of circuit breaker technology. It includes a main body, a vacuum section, an isolation section, and a control section. The vacuum section includes a vacuum interrupter chamber, the bottom of which is fixedly connected to the main body. An operating mechanism for controlling the opening and closing of the vacuum interrupter chamber is located within the main body. The isolation section includes a connecting plate, which is fixedly connected to the main body. An isolation mechanism for controlling the opening and closing of the circuit is located on the connecting plate. The control section includes a linear transmission assembly for controlling the opening and closing of the operating mechanism and a rotary transmission assembly for controlling the opening and closing of the isolation mechanism. It also includes a drive shaft. When the entire circuit is closed or opened, the operator does not need to make subjective judgments to achieve sequential opening and closing of the isolation machine and the operating mechanism, eliminating the risk of human error.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and more specifically, to a 10KV outdoor vacuum circuit breaker. Background Technology

[0002] Outdoor vacuum circuit breakers are widely used in all aspects of the power system, including transmission, distribution, and consumption. They are an indispensable and important component of the power system. In new energy grid connection projects, such as photovoltaic and wind power, outdoor vacuum circuit breakers also play an important role in ensuring the stable grid connection and efficient utilization of new energy sources. Outdoor vacuum circuit breakers are mainly composed of porcelain bushings, vacuum interrupters, and operating mechanisms, and have the function of breaking circuits and ensuring the safe and stable operation of the power system.

[0003] When an outdoor vacuum circuit breaker is in the closed state, its vacuum interrupter and isolating mechanism must be kept in a conducting state synchronously. When in the open state, the two must work together to achieve complete electrical isolation. According to the power system operation procedures, the power-off operation must strictly follow the standard operating sequence of "first disconnecting the main contacts of the vacuum circuit breaker, then disconnecting the isolating switch". The power-on operation must follow the reverse process of "first closing the isolating switch to establish a current-carrying path, then closing the vacuum circuit breaker to put it into operation". The essence of this operation logic is to use the instantaneous arc suppression capability of the core interrupter of the vacuum circuit breaker to build a physical protection barrier for the isolating switch, thereby ensuring that arc discharge does not cause corrosive damage to the primary equipment during the transient process of opening and closing. If the established operating procedures are violated, it will lead to serious violations of the operation of opening and closing the isolating switch while it is energized, directly causing arc flash, equipment damage and cascading faults in the power system, and also accompanied by occupational health risks such as arc burns to the operators.

[0004] In existing technologies, the main contact opening and closing mechanism of the vacuum interrupter and the disconnector operating system are designed independently without linkage, lacking an interlocking mechanism. Although this design achieves modular control of the switchgear, it exposes significant operational safety defects. When maintenance personnel mistakenly execute the opening and closing sequence, the lack of operation sequence verification and forced interlocking functions in the system will cause the disconnector to operate while energized. Such violations will lead to multiple risks: First, opening and closing the disconnector while energized will directly induce arc discharge, causing contact erosion and deterioration of equipment insulation performance. Second, arc energy may cause insulation flashover of adjacent equipment through conduction or radiation, leading to cascading faults in the power system. Finally, operators may be exposed to high-temperature arc radiation areas, creating occupational safety and health hazards. The essence of this technical problem is that the switchgear operation process lacks a logical interlocking protection mechanism and fails to enforce the timing of operator behavior through technical means. This makes the operational safety of critical power system equipment entirely dependent on subjective judgment, posing a significant risk of human error. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a 10KV outdoor vacuum circuit breaker to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a 10KV outdoor vacuum circuit breaker, comprising a main body, an operating mechanism, an isolation mechanism, and a control unit.

[0007] The control unit achieves interlocking of the action sequence between the operating mechanism and the isolation mechanism through a single-axis transmission structure. When the circuit is opened, the operating mechanism acts before the isolation mechanism, and when the circuit is closed, the isolation mechanism acts before the operating mechanism.

[0008] Preferably, the main body is provided with a vacuum section, which includes a vacuum interrupter and an operating mechanism located below the vacuum interrupter;

[0009] The operating mechanism includes a first rotating shaft, the rotation of which can control the opening and closing of the vacuum interrupter.

[0010] Preferably, the main body is provided with an isolation section, which includes a connecting plate and an isolation mechanism;

[0011] The isolation mechanism includes a second rotating shaft, the rotation of which controls the opening and closing of the isolation mechanism.

[0012] Preferably, the isolation mechanism includes an elastic buffer assembly, which is hinged to the vertical groove of the support frame via a swing arm, and is provided with an axial reset device for controlling the buffer stroke of the isolation mechanism.

[0013] Preferably, the control unit includes: a linear transmission assembly linked to the operating mechanism, a rotary transmission assembly linked to the isolation mechanism, and a control box integrating a drive shaft and a control lever, wherein the drive shaft synchronously drives two sets of transmission assemblies through two end rings.

[0014] Preferably, the linear transmission assembly includes an eccentric transmission structure and a linear drive component, wherein the eccentric transmission structure forms a displacement conversion mechanism with the guide post of the linear drive component through a guide groove.

[0015] Preferably, the rotation control between the operating mechanism and the linear transmission assembly is achieved through a mechanical linkage mechanism.

[0016] Preferably, the rotary transmission assembly includes a trajectory linkage component and a sliding drive component, wherein the rotation groove of the trajectory linkage component and the insertion post of the sliding drive component form a cam follower mechanism.

[0017] Preferably, the control box is provided with a guide sliding structure, which includes a sliding rail that cooperates with each other and a sliding plate with a connecting rod.

[0018] Preferably, the isolation mechanism and the rotary transmission assembly are controlled by a mechanical transmission mechanism.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention, through the coordinated arrangement of the main body, vacuum interrupter, isolation mechanism, and operating mechanism, utilizes the high insulation and arc-extinguishing characteristics of the vacuum medium when the circuit is opened or closed. When the circuit breaker is opened, the arc generated between the contacts is rapidly diffused and cooled. By utilizing the characteristics of metal vapor condensation and rapid recombination of charged particles, the arc is extinguished at the natural zero-crossing point of the current, thereby safely cutting off the circuit. This process can effectively avoid equipment damage or power accidents caused by arc reignition.

[0021] 2. This invention utilizes a control system with a coordinated arrangement of a control lever, drive shaft, cam, disc, slide plate, guide post, guide groove, insert post, rotating groove, first rotating shaft, and second rotating shaft. This innovative integrated operating mechanism design breaks through the traditional "break first, then isolate" timing operation specification of switchgear. Through a single control lever and multi-dimensional linkage mechanism, it achieves an inherently safe reconstruction of electrical operation logic. The technical implementation path is as follows: During the opening process, the control unit drives the composite linkage mechanism to first complete the zero-current disconnection of the main contacts of the vacuum interrupter, and then automatically triggers the separation action of the isolating switch. During closing, the reverse operation sequence is followed, with the isolating mechanism first establishing a current-carrying channel, and then driving the interrupter contacts to achieve circuit conduction. This design completely eliminates the operator's reliance on subjective judgment regarding the opening and closing sequence. This innovative architecture not only achieves miniaturized integration of switchgear but also constructs multiple barriers for arc protection through a forced timing control strategy, providing a paradigm-level solution for the operational safety of critical power system equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the isolation mechanism of the present invention.

[0024] Figure 3 This is a schematic diagram of the control unit of the present invention.

[0025] Figure 4 This is a schematic diagram of the control unit and the second rotating shaft of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure of the disc and guide groove of the present invention.

[0027] Figure 6 This is a schematic diagram of the rotary transmission component of the present invention.

[0028] The attached figures are labeled as follows: 1. Main body; 2. Vacuum section; 21. Vacuum interrupter chamber; 22. Operating mechanism; 221. First rotating shaft; 3. Isolation section; 31. Connecting plate; 32. Isolation mechanism; 321. Second rotating shaft; 322. Support frame; 323. Vertical groove; 324. Swing rod; 325. Limiting shaft; 326. First spring; 4. Control section; 41. Linear transmission assembly; 411. Disc; 412. Guide groove; 413. First rack; 414. Guide column; 415. First gear; 42. Rotary transmission assembly; 421. Cam; 422. Slide plate; 423. Slide rail; 424. Rotating groove; 425. Second rack; 426. Second gear; 427. Connecting rod; 428. Insertion column; 43. Drive shaft; 44. Control box; 45. Control lever; 46. Ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please see Figures 1 to 6 As shown, this embodiment provides a KV outdoor vacuum circuit breaker, including a main body 1, a vacuum section 2, which includes a vacuum interrupter 21 and an operating mechanism 22. The operating mechanism 22 is used to control the opening and closing of the vacuum interrupter 21. An isolation section 3 includes a connecting plate 31, on which an isolation mechanism 32 is provided. A control section 4 includes a drive shaft 43. A linear transmission assembly 41 connected to the operating mechanism 22 and a rotary transmission assembly 42 connected to the isolation mechanism 32 are provided on the outside of the drive shaft 43. When the drive shaft 43 rotates, the operating mechanism 22 and the isolation mechanism 32 operate in sequence according to its rotation direction: when rotating in the forward direction, the operating mechanism 22 moves first and the isolation mechanism 32 moves later; when rotating in the reverse direction, the isolation mechanism 32 moves first and the operating mechanism 22 moves later.

[0032] The operating mechanism 22 includes a first rotating shaft 221. The first rotating shaft 221 can rotate to make or separate the contacts in the vacuum interrupter 21. The connection between the first rotating shaft 221 and the operating mechanism 22 is prior art and will not be described in detail in this application. This enables the operating mechanism 22 to open or close. During the opening and closing process, an electric arc will be formed between the contacts. The porcelain sleeve in the vacuum interrupter 21 can suppress the electric arc.

[0033] The isolation mechanism 32 includes a second rotating shaft 321, and the opening and closing of the isolation mechanism 32 can be controlled by rotating the second rotating shaft 321.

[0034] A support frame 322 is fixedly connected to the connecting plate 31. A vertical groove 323 is provided on the support frame 322. A rocker arm 324 corresponding to the vertical groove 323 is fixedly connected to the second rotating shaft 321. A limiting shaft 325 is hinged to the free end of the rocker arm 324. The limiting shaft 325 is shaped such that the diameter of one end is larger than the diameter of the other end. There is a stepped surface at the intersection of the two ends of the limiting shaft 325. The end of the limiting shaft 325 extends into the vertical groove 323 and is hinged to the support frame 322. A first spring 326 is fitted on the limiting shaft 325 between its stepped surface and the support frame 322.

[0035] In practical use, the operating mechanism 22 contains an energy storage device. The function of the energy storage device is to provide power for the closing and opening of the operating mechanism 22. The energy storage device can be manually energized or energized by a motor. This technology is existing technology and will not be described in detail. When the vacuum circuit breaker is in the closed state and needs to be opened, the operating mechanism 22 needs to be opened first, and then the isolation mechanism 32 needs to be opened. Because a high-voltage arc will be generated at the moment the circuit is opened, the vacuum interrupter 21 can extinguish the arc when the operating mechanism 22 is opened. Specifically, the first rotating shaft 221 is rotated. The first rotating shaft 221 rotates, thereby realizing the discontinuation of the contacts in the vacuum interrupter 21 through the operating mechanism 22. A high-voltage arc will be generated at the moment the contacts are discontinuing. The vacuum interrupter 21 uses the high vacuum to reduce ions and molecules, thereby quickly extinguishing the arc. At this time, the entire circuit is in the open state.

[0036] When the contacts in the vacuum interrupter chamber 21 of the vacuum circuit breaker are disconnected, the second rotating shaft 321 is controlled to rotate. The second rotating shaft 321 drives the isolation mechanism 32 to rotate. At the same time, the second rotating shaft 321 drives the swing rod 324 to swing upward. The swing rod 324 drives the limit shaft 325 to swing upward. When the second rotating shaft 321 drives the swing rod 324 to swing upward to the limit position, the isolation mechanism 32 is in the open state. At this time, due to the restriction of the first spring 326, the entire isolation mechanism 32 remains in the open state without the action of external force. At this time, the isolation mechanism 32 is open, and the circuit is in the disconnected state.

[0037] When the vacuum circuit breaker is in the open state and needs to be closed, the isolation mechanism 32 needs to be closed first, and then the operating mechanism 22 needs to be closed. Because a high-voltage arc will be generated at the moment the circuit is closed, the vacuum interrupter 21 can extinguish the arc when the operating mechanism 22 is closed. Specifically, the second rotating shaft 321 is controlled to rotate, which drives the isolation mechanism 32 to rotate. At the same time, the second rotating shaft 321 drives the swing rod 324 to swing downward, which drives the limit shaft 325 to swing downward. When the second rotating shaft 321 drives the swing rod 324 to swing downward to the limit position, the isolation mechanism 32 is in the closed state. At this time, due to the restriction of the first spring 326, the entire isolation mechanism 32 is kept in the closed state without the action of external force.

[0038] When the isolation mechanism 32 is closed, the first rotating shaft 221 is rotated. The rotation of the first rotating shaft 221 causes the contacts in the vacuum interrupter 21 to move towards each other through the operating mechanism 22. A high-voltage arc is generated at the moment the contacts come into contact. The vacuum interrupter 21 uses the high vacuum to reduce ions and molecules, thereby quickly extinguishing the arc. At this time, the entire circuit is in a closed state. When the circuit is opened or closed, the high insulation and arc-extinguishing characteristics of the vacuum medium are used to make the arc generated between the contacts spread and cool rapidly when the circuit breaker is opened. The arc is extinguished at the natural zero-crossing point of the current by using the characteristics of metal vapor condensation and rapid recombination of charged particles, thereby safely cutting off the circuit. This process can effectively avoid equipment damage or power accidents caused by arc reignition.

[0039] Example 2

[0040] Based on the above embodiments, since the main contact opening and closing mechanism of the vacuum interrupter 21 and the disconnector operation system adopt a non-linkage independent design and lack an interlocking mechanism, when the maintenance personnel mistakenly execute the opening and closing sequence, the disconnector will be opened and closed while energized. Opening and closing the disconnector while energized will directly induce arc discharge, causing contact erosion and deterioration of equipment insulation performance. Arc energy may cause insulation flashover of adjacent equipment through conduction or radiation, resulting in cascading faults in the power system. Operators may be exposed to high-temperature arc radiation areas.

[0041] Please see Figures 1 to 6 As shown, the control unit 4 includes a linear transmission assembly 41 for controlling the opening and closing of the operating mechanism and a rotary transmission assembly 42 for controlling the opening and closing of the isolation mechanism 32. It also includes a drive shaft 43. When the circuit needs to be disconnected, the drive shaft 43 rotates to make the operating mechanism 22 disconnect first and the isolation mechanism 32 disconnect later. When the circuit needs to be closed, the isolation mechanism 32 closes first and the operating mechanism 22 closes later.

[0042] The control unit 4 includes a control box 44, which is fixedly connected to the main body 1. The drive shaft 43 is rotatably connected to the control box 44. The front end of the drive shaft 43 passes through the control box 44 and is provided with a control rod 45. The control rod 45 is provided with rings 46 at both ends.

[0043] The linear transmission assembly 41 includes a disk 411, which is coaxially and fixedly connected to the drive shaft 43. A guide groove 412 is provided on the disk 411. Figure 5 The guide groove 412 shown has two states, one of which is a small radius state and the other of which is a large radius state. A first rack 413 is slidably connected inside the main body 1. The free end of the first rack 413 extends into the control box 44 and is provided with a guide post 414 inserted into the guide groove 412.

[0044] A first gear 415 is coaxially fixedly connected to the first rotating shaft 221, and the first gear 415 can mesh with the first rack 413.

[0045] The rotary transmission assembly 42 includes a cam 421 that is coaxially and fixedly connected to the drive shaft 43, such as Figure 6 The cam 421 shown has a rotating groove 424. The shape of the rotating groove 424 is the same as the outline of the cam 421. The rotating groove 424 has two states: a small diameter state and a large diameter state. The control box 44 has a slide plate 422. A connecting rod 427 is fixedly connected to the slide plate 422. A pin 428 inserted into the rotating groove 424 is fixedly connected to the connecting rod 427.

[0046] The control box 44 is equipped with a slide rail 423, and the slide plate 422 is slidably connected to the slide rail 423.

[0047] A second rack 425 is fixedly connected to the upper end of the slide plate 422, and a second gear 426 that can mesh with the second rack 425 is coaxially fixedly connected to the second rotating shaft 321.

[0048] In practical use, based on the above embodiments, when the vacuum circuit breaker is in the closed state and needs to be disconnected, the control lever 45 is pushed to move downward on the right side. The control lever 45 drives the drive shaft 43 to rotate clockwise. The drive shaft 43 drives the disc 411 and the cam 421 to rotate clockwise synchronously. The disc 411 drives the guide groove 412 to rotate clockwise, so that the guide column 414 moves from a small radius state to a large radius state in the guide groove 412. The guide column 414 drives the first rack 413 to move to the right. Through the meshing of the first rack 413 and the first gear 415, the first rotating shaft 221 rotates counterclockwise. When the guide column 414 moves to the large radius state in the guide groove 412, the first rotating shaft 221 rotates counterclockwise to the limit position. The first rotating shaft 221 drives the operating mechanism 22 to realize the disconnection operation of the contacts in the vacuum interrupter 21.

[0049] In the above process, the drive shaft 43 drives the cam 421 to rotate clockwise, and the cam 421 drives the rotating groove 424 to rotate clockwise, causing the insert 428 to move within the small diameter state of the rotating groove 424. During this process, the positions of the insert 428 and the connecting rod 427 relative to the cam 421 remain unchanged. As the drive shaft 43 continues to rotate, the insert 428 changes from the small diameter state to the large diameter state within the rotating groove 424. During the change, the insert 428, pushed by the guide groove 412, drives the slide plate 422 to move downward through the connecting rod 427. The slide plate 422 drives the second rack 425 to move downward. During the downward movement of the second gear 426, it meshes with the second rack 425, causing the second rotating shaft 321 to rotate upward. The second rotating shaft 321 drives the rocker arm 324 to swing upward. The limit shaft 325 is driven to swing upward and compress the first spring 326. When the insertion post 428 moves to the large diameter state in the rotating groove 424, the second rotating shaft 321 drives the swing rod 324 to move upward to the limit position. At this time, the isolation mechanism 32 is disconnected. The rotating shaft remains stationary under the force of the first spring 326, so that the isolation mechanism 32 is in the disconnected state without external force intervention. At this time, the circuit is disconnected. During this process, the guide post 414 slides in the large diameter in the guide groove 412. The first rack 413 will not move. The operating mechanism 22 is in the disconnected state. This process only requires controlling the swing of the control rod 45. When the vacuum circuit breaker is disconnected in the closed state, the operating mechanism 22 first drives the contacts in the vacuum interrupter 21 to disconnect. After the contacts disconnect, the isolation mechanism 32 is disconnected.

[0050] When the vacuum circuit breaker is in the open state and needs to be closed, the control lever 45 is pushed to move downwards on the left. The control lever 45 drives the drive shaft 43 to rotate counterclockwise. The drive shaft 43 drives the cam 421 to rotate counterclockwise. The cam 421 drives the rotating groove 424 to rotate counterclockwise, causing the insert 428 to switch from a large-diameter state to a small-diameter state within the rotating groove 424. This causes the insert 428 to drive the connecting rod 427 to move upwards. The connecting rod 427 drives the slide plate 422 to move upwards. The slide plate 422 drives the second rack 425 to mesh with the second gear 426. This causes the second gear 426 to drive the second rotating shaft 321 to rotate downwards, the second rotating shaft 321 to drive the rocker arm 324 to swing upwards, the rocker arm 324 to drive the limiting shaft 325 to swing upwards, and compress the first spring 326. When the insert 428 switches to the small diameter state in the rotating groove 424, the second rotating shaft 321 drives the limiting shaft 325 to swing downwards to the limit position via the rocker arm 324. At this time, under the force of the first spring 326, the second rotating shaft 321 remains stationary. At this time, the second rotating shaft 321 drives the isolation mechanism 32 to close.

[0051] During the above process, the guide post 414 is in the large-diameter state within the guide groove 412, and the operating mechanism 22 is in the disengaged state. As the drive shaft 43 continues to rotate counterclockwise, the guide post 414 switches from the large-diameter state to the small-diameter state within the guide groove 412. This causes the guide post 414 to drive the first rack 413 to move to the left, and the first rack 413 drives the first gear 415 to rotate clockwise. This causes the first gear 415 to drive the first rotating shaft 221 to rotate clockwise. When the guide post 414 switches to the large-diameter state within the guide groove 412, the first rotating shaft 221, through the operating mechanism 22, drives the contacts in the vacuum interrupter 21 to close. During this process, the insertion post 428 moves in the small-diameter state within the rotating groove 424. The slide plate 422 does not move, that is, the second rotating shaft 321 remains stationary, and the isolation mechanism 32 is in the closed state. At this time, under the limit of the operating mechanism 22, the first rotating shaft 221 is limited and cannot rotate, so that the drive shaft 43 cannot rotate, so that the control board is stationary without the action of external force, and the circuit is in the closed state. This process only requires controlling the swing of the control lever 45 so that when the vacuum circuit breaker is in the open state, the isolation mechanism 32 closes first. After the isolation mechanism 32 closes, the entire circuit is still in the open state. Then the operating mechanism 22 drives the contacts in the vacuum interrupter 21 to make contact, so that the entire circuit is closed, avoiding the generation of arc when the isolation mechanism 32 closes.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A 10KV outdoor vacuum circuit breaker, comprising a main body, an operating mechanism, an isolation mechanism, and a control unit, characterized in that: The main body is provided with a vacuum section, which includes a vacuum interrupter and an operating mechanism located below the vacuum interrupter. The operating mechanism includes a first rotating shaft, which can control the opening and closing of the vacuum interrupter by rotating the first rotating shaft. The main body is provided with an isolation section, which includes a connecting plate and an isolation mechanism. The isolation mechanism includes a second rotating shaft, which can control the opening and closing of the isolation mechanism by rotating the second rotating shaft. The control unit achieves time-locked operation between the operating mechanism and the isolating mechanism through a single-axis transmission structure. When opening the circuit breaker, the operating mechanism moves before the isolating mechanism; when closing the circuit breaker, the isolating mechanism moves before the operating mechanism. The isolating mechanism includes an elastic buffer component, which is hinged to the vertical groove of the support frame via a swing arm and is equipped with an axial reset device to control the buffer stroke of the isolating mechanism. The control unit includes a linear transmission component linked to the operating mechanism, a rotary transmission component linked to the isolating mechanism, and a control box integrating a drive shaft and a control lever. The drive shaft synchronously drives two sets of transmission components through two end rings. The linear transmission component includes an eccentric transmission structure and a linear drive component. The eccentric transmission structure forms a displacement conversion mechanism with the guide post of the linear drive component via a guide groove. A disk and a cam are coaxially fixedly connected to the drive shaft. The disk drives the linear transmission component to drive the first rotating shaft, and the cam drives the rotary transmission component to drive the second rotating shaft.

2. The outdoor vacuum circuit breaker according to claim 1, characterized in that: The operating mechanism and the linear transmission assembly achieve rotation control through a mechanical linkage mechanism.

3. The outdoor vacuum circuit breaker of claim 2, wherein: The rotary transmission assembly includes a trajectory linkage component and a sliding drive component, wherein the rotation groove of the trajectory linkage component and the insertion post of the sliding drive component form a cam follower mechanism.

4. The outdoor vacuum circuit breaker of claim 3, wherein: The control box is equipped with a guide sliding structure, which includes a sliding rail that cooperates with each other and a sliding plate with a connecting rod.

5. The outdoor vacuum circuit breaker of claim 4, wherein: The isolation mechanism and the rotary transmission assembly achieve rotation control through a mechanical transmission mechanism.

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