A primary and secondary fused vacuum circuit breaker

Abstract

The application relates to the technical field of vacuum circuit breakers, in particular to a primary and secondary fusion vacuum circuit breaker, which comprises a circuit breaker body composed of a base, an isolation cylinder, a support insulator, an isolation blade, an insulating support and a driving assembly, one end and the inner side of the isolation blade are respectively hinged to the isolation cylinder and the insulating support; the base is internally provided with a protection mechanism for protecting the driving assembly, and the driving assembly is provided with an abutting piece used in cooperation with the protection mechanism, wherein the abutting piece comprises a wheel frame and a roller. The primary and secondary fusion vacuum circuit breaker is synchronous with the driving assembly and the isolation blade through the protection mechanism, so that the circuit breaker opening and closing actions are synchronous with the lubrication and protection actions, the protection mechanism does not need additional power driving, the structure is simplified, the driving assembly rotating part can be timely lubricated and protected during the action process, component failure caused by friction loss and rust is avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of vacuum circuit breaker technology, and in particular to a primary and secondary integrated vacuum circuit breaker. Background Technology

[0002] Vacuum circuit breakers, due to their excellent arc-extinguishing performance, high reliability, and long electrical life, have become core protection and control equipment in power distribution networks, especially in medium-voltage power distribution systems. With the deepening of smart power distribution network construction, primary and secondary integration technology has become an important development direction in the field of vacuum circuit breakers. Primary and secondary integration refers to the deep integration of primary and secondary equipment, thereby achieving real-time monitoring and automatic isolation of faults such as line load, voltage, short circuits, and grounding faults. This significantly improves the automation level and power supply reliability of the power distribution network. At the same time, the rapid advancement of power electronic component manufacturing technology provides crucial support for the high-performance secondary control system of primary and secondary integrated circuit breakers. Specifically, the domestic manufacturing processes for metal-oxide-semiconductor field-effect transistors (MOSFETs), insulated-gate bipolar transistors (IGBTs), and modules are becoming increasingly mature, with their power density, switching speed, and high-temperature stability continuously improving.

[0003] However, existing primary and secondary integrated vacuum circuit breakers still face the problem of protecting transmission components during long-term outdoor operation. Outdoor circuit breakers are exposed to harsh environments such as wind, sand, humidity, condensation, and salt spray, requiring regular lubrication of the rotating parts of their operating mechanisms to ensure smooth opening and closing. However, due to the wide distribution and high installation locations of the equipment, manual periodic maintenance is costly and difficult to manage precisely. Furthermore, poor lubrication leading to jamming of transmission components is a significant cause of circuit breaker failure to open or close. Insulating supports and insulators are also susceptible to contamination, resulting in decreased insulation performance. In outdoor environments, dust, salt spray, and oil accumulate on the surface of the supports and insulators, easily causing flashover or wet flashover under humid or condensing conditions, which can lead to leakage or short-circuit accidents in severe cases. Therefore, a primary and secondary integrated vacuum circuit breaker is proposed to address these problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies and improve the efficiency of circuit breakers, this application provides a primary and secondary integrated vacuum circuit breaker, which has advantages such as good protection and convenient maintenance, and solves the problems mentioned above.

[0005] This application provides a primary and secondary integrated vacuum circuit breaker, which adopts the following technical solution: A primary and secondary integrated vacuum circuit breaker includes a circuit breaker body composed of a base, an isolation cylinder, a post insulator, an isolation blade, an insulating post, and a drive assembly. One end and the inner side of the isolation blade are respectively hinged to the isolation cylinder and the insulating post. The base is provided with a protection mechanism to protect the drive assembly, and the drive assembly is provided with a contact member for use with the protection mechanism, wherein the contact member includes a wheel frame and a roller. The protection mechanism includes a hollow cylinder, a liquid-containing assembly, and a connecting assembly. The liquid-containing assembly includes a liquid-containing cylinder and a mixing component disposed inside the liquid-containing cylinder. The mixing component is connected to the connecting assembly, and the connecting assembly is connected to the inner side of the isolation blade. A guide rod extending to the outside of the cylinder is fixed to the bottom side of the liquid-containing cylinder. An abutment plate that abuts against the roller is installed on the outer surface of the guide rod. A liquid delivery pipe is fixedly connected to the end of the guide rod. The drive assembly drives the support insulator and the abutment component respectively. The support insulator moves up and down, driving the isolation blade to rotate and using the connecting assembly to drive the mixing component to move down. At the same time, the abutment component abuts against the abutment plate, driving the liquid-containing cylinder to move up to perform liquid-containing work. The liquid is quickly discharged by the downward movement of the mixing component.

[0006] Optionally: The base has an internal mounting cavity. The drive assembly includes a drive handle, a rotating rod rotatably mounted inside the base and passing through the mounting cavity, a swing arm fixed to the outer surface of the rotating rod, and a connecting block fixed to the end of the post insulator. The connecting block is hinged to the swing arm. The drive handle drives the rotating rod to rotate, and the swing arm rotates synchronously and drives the post insulator to move upward through the connecting block, thereby realizing the rotation of the isolation blade.

[0007] Optionally: A return spring is installed on the top side of the abutment plate, surrounding the outside of the guide rod; the wheel frame is fixed to the outer surface of the rotating rod; the cylinder is fixed to the upper surface of the base, and its bottom side extends into the interior of the mounting cavity; the top side of the mixing component extends to the outside of the cylinder; wherein the cylinder is filled with lubricating fluid and protective fluid, and the liquid is loaded through the liquid holding assembly to lubricate and protect the rotating part of the drive assembly.

[0008] Optionally: the upper and lower ends of the guide rod are respectively connected to the liquid container and the infusion tube; the mixing component includes a lifting rod, a stirring impeller fixed to the bottom end of the lifting rod, and a piston installed on the bottom side of the stirring impeller, wherein the diameter of the piston is adapted to the infusion channel inside the guide rod, and the top side of the liquid container is open.

[0009] Optionally, the liquid-containing assembly further includes a guide, which includes a mounting bracket fixed to the top side of the liquid-containing cylinder. A guide sleeve is fixed at the center of the mounting bracket. The guide sleeve is hollow, and a lifting rod passes through the inside of the guide sleeve. A guide rod is fixed inside the guide sleeve, and a ball bearing that rolls with the lifting rod is rotatably mounted at the end of the guide rod.

[0010] Optional: The lifting rod has a spirally arranged guide groove inside, which surrounds the outer surface of the lifting rod. A ball bearing rolls into the guide groove, causing the lifting rod to rotate when it is displaced. A return spring is installed between the outer surface of the lifting rod and the top side of the guide sleeve.

[0011] Optionally: The connecting assembly includes a first connecting rod, a second connecting rod, and a connecting shaft, wherein the first connecting rod and the second connecting rod are hinged at opposite ends, and the bottom end of the second connecting rod is rotatably connected to the top end of the lifting rod.

[0012] Optionally: One end of the connecting shaft is hinged to the top of the first connecting rod, and the other end of the connecting shaft is hinged to the outside of the isolation blade. When the isolation blade flips and disengages from the post insulator, the connecting shaft drives the first and second connecting rods to move downward, thereby realizing the downward movement of the lifting rod.

[0013] Optionally, a cleaning assembly for cleaning the insulating support is provided on the top side of the base. The protection mechanism further includes a transmission seat rotatably disposed on the top side of the cylinder, and a synchronizing element is provided between the transmission seat and the cleaning assembly. The lifting rod passes through the interior of the transmission seat, and the transmission seat is splinedly connected to the lifting rod. When the lifting rod rises and rotates, it drives the transmission seat to rotate. The synchronizing element drives the cleaning assembly to work, thereby achieving cleaning and protection of the insulating support.

[0014] Optionally, the cleaning assembly includes a hollow support cylinder and an annular brush rotatably mounted on the top side of the support cylinder, wherein an insulating support column passes through the support cylinder and the annular brush, and the synchronizing element is drivenly connected to the annular brush.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. In this invention, the protection mechanism, drive assembly, and isolating blade are synchronized, so that the circuit breaker's opening and closing actions are synchronized with the lubrication and protection actions. No additional power is needed to drive the protection mechanism, which simplifies the structural setup and ensures that the rotating parts of the drive assembly are lubricated and protected in a timely manner during the operation, avoiding component failures caused by friction wear and corrosion, and reducing maintenance costs.

[0016] 2. In this invention, the lifting rod achieves rotation during lifting by the rolling cooperation of the spiral guide groove and the ball, thereby driving the stirring impeller to fully mix the lubricating liquid and the protective liquid. This solves the problems of liquid stratification and uneven protection in traditional protection, ensuring that all rotating parts of the drive component can obtain uniform lubrication and protection, and improving the reliability of protection.

[0017] 3. In this invention, a first reset spring and a second reset spring are provided to achieve precise reset of the liquid-containing component and the mixing component, respectively, ensuring that the protection mechanism can return to its initial state after each opening and closing action, and avoiding component jamming.

[0018] 4. In this invention, the first reset spring not only dampens the upward movement speed of the liquid container, but also indirectly buffers the movement speed of the isolating blade, reducing operational impact. In addition, the second reset spring resists the rapid descent of the lifting rod, converting the impact energy of the downward movement into the elastic potential energy of the spring, thereby slowing down the movement speed of the lifting rod and connecting components. The resulting damping effect is also transmitted to the isolating blade, which is equivalent to buffering the impact when the isolating blade is in the open position, avoiding rigid collision between the blade and the limiting component.

[0019] 5. This invention uses a splined connection between the lifting rod and the transmission seat to link the cleaning components and clean the insulating support pillars simultaneously. This removes dust and debris from the surface of the insulating support pillars in a timely manner, preventing the insulation performance from deteriorating due to the accumulation of pollutants and reducing safety hazards such as short circuits and leakage. It is especially suitable for harsh working environments such as outdoor and dusty environments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the overall structure of this application; Figure 2 This is a schematic diagram of the driver component of this application; Figure 3 This is a cross-sectional view of the base structure of this application; Figure 4 This is a cross-sectional view of the organization protected by this application; Figure 5 This is a cross-sectional view of the liquid-filling assembly of this application; Figure 6 This is a schematic diagram of the guide rod structure of this application; Figure 7 This is a structural schematic diagram of the connection component and the cleaning component of this application; Figure 8 This application Figure 7 A magnified structural diagram of structure A is shown.

[0021] Explanation of reference numerals in the attached figures: 1. Circuit breaker body; 11. Base; 111. Mounting cavity; 12. Isolation cylinder; 13. Post insulator; 14. Isolation blade; 15. Insulating post; 16. Drive assembly; 161. Drive handle; 162. Rotating rod; 163. Swing arm; 164. Connecting block; 165. Abutment part; 1651. Wheel frame; 1652. Roller; 2. Protection mechanism; 21. Cylinder; 22. Liquid containing assembly; 221. Liquid containing cylinder; 222. Mixing component; 2221. Lifting rod; 2 222. Agitator impeller; 2223. Piston; 223. Guide rod; 224. Infusion tube; 225. Return spring one; 226. Mounting bracket; 227. Guide sleeve; 228. Guide rod; 229. Ball bearing; 2210. Return spring two; 2211. Guide groove; 23. Connecting assembly; 231. Connecting rod one; 232. Connecting rod two; 223. Connecting shaft; 24. Abutment plate; 25. Transmission seat; 3. Cleaning assembly; 31. Support cylinder; 32. Annular brush; 4. Synchronizing component. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0023] This application discloses a primary and secondary integrated vacuum circuit breaker, including a circuit breaker body 1 and a protection mechanism 2 disposed inside it for linkage protection.

[0024] like Figure 1 and Figure 2 As shown, the circuit breaker body 1 includes a base 11, an isolation cylinder 12 vertically mounted on the base 11, a post insulator 13 fixed to one side of the base 11, an isolation blade 14 with one end hinged to the internal contact of the isolation cylinder 12 and the other end abutting against the top of the post insulator 13, an insulating post 15 mounted on the base 11 for support, and a drive assembly 16 integrated inside the base 11; specifically, the inner side of the isolation blade 14 is also hinged to the top of the insulating post 15, so that the insulating post 15 can assist in supporting and guiding the flipping path of the isolation blade 14.

[0025] In this embodiment, a mounting cavity 111 is provided inside the base 11; such as Figure 2 and Figure 3As shown, the drive assembly 16 includes a drive handle 161 extending to the outside of the base 11, a rotating rod 162 rotatably mounted inside the base 11 and laterally penetrating the mounting cavity 111, a swing arm 163 fixedly fitted onto the outer surface of the rotating rod 162, and a connecting block 164 fixedly connected to the bottom end of the post insulator 13. The connecting block 164 is hinged to the end of the swing arm 163. With this configuration, when the operator moves the drive handle 161, the drive handle 161 drives the rotating rod 162 to rotate, and the rotating rod 162 in turn drives the swing arm 163 to swing synchronously. The swing arm 163 pushes the post insulator 13 vertically up and down through the connecting block 164. The up and down movement of the post insulator 13 ultimately drives the isolating blade 14 to rotate around its hinge point with the isolating cylinder 12, realizing the opening or closing of the circuit breaker. This linkage-type drive structure is simple, reliable in transmission, and can provide a stable opening and closing stroke. In addition, by placing the swing arm 163 inside the base 11, dust, moisture and condensation in the outdoor environment can be effectively isolated, reducing the risk of corrosion and insulation performance degradation, and improving the maintenance-free nature and environmental adaptability of the equipment.

[0026] In order to achieve the linkage between the opening and closing actions and the protection actions, such as Figures 2-4 As shown, the drive assembly 16 is also provided with an abutment 165. The abutment 165 includes a wheel frame 1651 fixed to the outer surface of the rotating rod 162 and rotating therewith, and a roller 1652 rotatably mounted on the end of the wheel frame 1651.

[0027] In this embodiment, the protection mechanism 2 is fixedly installed on the upper surface of the base 11 and partially extends into the mounting cavity 111. Figure 3 As shown, the protection mechanism 2 includes a hollow cylinder 21, a liquid-containing assembly 22 vertically movably disposed inside the cylinder 21, and a connecting assembly 23 connecting the liquid-containing assembly 22 and the isolation blade 14.

[0028] like Figures 3-6As shown, the liquid-containing assembly 22 includes a liquid-containing cylinder 221 with an open top and a mixing component 222 disposed inside the liquid-containing cylinder 221. A vertically downward extending guide rod 223 is fixedly connected to the center of the bottom side of the liquid-containing cylinder 221. The guide rod 223 is hollow and has an internal infusion channel. The lower end of the guide rod 223 passes through the bottom wall of the cylinder 21 and extends into the mounting cavity 111. An abutment plate 24 is fixedly installed on the outer surface of the guide rod 223 inside the mounting cavity 111. The bottom surface of the abutment plate 24 abuts against the outer edge of the roller 1652. Furthermore, a return spring 225 is fitted between the top side of the abutment plate 24 and the outer surface of the bottom wall of the cylinder 21. The return spring 225 always provides a downward return force to the liquid-containing cylinder 221. The bottom end of the guide rod 223 is fixedly connected to a flexible infusion tube 224. The outlet end of the infusion tube 224 is precisely aligned with the rotating parts of the drive assembly 16 that need lubrication, such as the rotating joint between the rotating rod 162 and the base 11. This enables precise lubrication at fixed points and in fixed quantities, avoiding liquid waste and improving the protection effect.

[0029] like Figure 5 and Figure 8 As shown, the mixing component 222 includes a vertically arranged lifting rod 2221, a stirring impeller 2222 fixed to the bottom end of the lifting rod 2221, and a piston 2223 fixedly installed at the center of the bottom side of the stirring impeller 2222. The top end of the lifting rod 2221 extends upward to the outside of the cylinder 21. The diameter of the piston 2223 is adapted to the diameter of the infusion channel inside the guide rod 223, so that the piston 2223 can be sealed into or out of the infusion channel. It should be noted that the piston 2223 has a through hole inside, and a check valve (not shown in the figure) is installed in the through hole. This allows liquid to flow from the side of the liquid container to the inner cavity of the guide rod 223, that is, from above the piston 2223 to below the piston 2223. When moving downward, the check valve closes, and the liquid in the inner cavity of the liquid guide rod 223 in front of the piston 2223 is squeezed and discharged through the infusion pipe 224. When moving upward, the check valve opens, and the liquid in the liquid container 221 is drawn into the inner cavity of the guide rod 223 through the through hole of the piston 2223, preparing for the next discharge. A solenoid valve can also be added inside the guide rod 223. In this embodiment, the cylinder 21 is pre-loaded with lubricating fluid and protective fluid such as rust inhibitor. These liquids fill the liquid container 221 under the action of gravity, so that the mixing component 222 is not only the power source for discharge, but also the stirring execution structure for liquid homogenization.

[0030] like Figure 5 and Figure 7As shown, the connecting assembly 23 includes a first connecting rod 231, a second connecting rod 232, and a connecting shaft 233. The top end of the first connecting rod 231 is hinged to the outer side of the isolation blade 14, i.e., the side away from the hinge point, via the connecting shaft 233. The bottom end of the first connecting rod 231 is hinged to the top end of the second connecting rod 232, and the bottom end of the second connecting rod 232 is rotatably connected to the top end of the lifting rod 2221, allowing relative rotation through a simple shaft-hole fit.

[0031] To further improve the performance of the protection mechanism 2 and prevent the liquid in the liquid container 221 from settling, separating, or becoming uneven in properties due to long-term standing, the liquid container 22 in this embodiment also includes a guide. For example... Figure 6 and Figure 8 As shown, the guide includes a mounting bracket 226 fixed to the edge of the top opening of the liquid container 221, and a guide sleeve 227 fixed to the center of the mounting bracket 226. The guide sleeve 227 is a vertical hollow cylinder, through which the lifting rod 2221 passes. At least one guide rod 228 is fixed on the inner wall of the guide sleeve 227, and a ball bearing 229 is rotatably mounted at the end of each guide rod 228. Specifically, a spiral guide groove 2211 is formed on the outer surface of the lifting rod 2221. It should be noted that the ball bearing 229 is precisely accommodated in the guide groove 2211 and forms a rolling engagement with the guide groove 2211. When the lifting rod 2221 moves vertically under the push of the connecting assembly 23, the ball bearing 229 rolls along the spiral guide groove 2211, thereby driving the lifting rod. 2221 itself generates rotational motion; it is worth mentioning that, through the cooperation of the spiral guide groove 2211 and the ball 229, the linear motion of the lifting rod 2221 is transformed into a composite motion of linear and rotational motion; during use, the lifting rod 2221 rotates at high speed while moving down to discharge liquid, driving the bottom stirring impeller 2222 to stir the liquid in the liquid container 221, avoiding problems such as liquid stratification and additive precipitation caused by the circuit breaker being in the closed state for a long time, and ensuring that the discharged liquid can provide stable and reliable lubrication and protection for the drive component 16; like Figure 6 As shown, in this embodiment, a second reset spring 2210 is rotatably installed between the outer surface of the lifting rod 2221 and the top side of the guide sleeve 227. The second reset spring 2210 is compressed when the lifting rod 2221 moves downward, providing upward reset spring force damping buffer for the lifting rod 2221, thus extending its service life. It should be noted that the second reset spring 2210 is not only used for reset, but also generates a damping effect on the rapidly moving lifting rod 2221 when it is opened, slowing down its movement speed. At the same time, the generated damping is also transmitted in reverse to the isolating blade 14 through the connecting component 23, thereby effectively buffering the impact force on the limiting component when the isolating blade 14 is opened, avoiding mechanical damage and noise caused by hard collision, and significantly extending the mechanical life of the circuit breaker body.

[0032] To prevent circuit breakers, especially outdoor circuit breakers, from having their insulation posts 15 exposed to the air for extended periods, which can easily lead to dust accumulation and moisture absorption, resulting in a decline in insulation performance, this embodiment also includes an automatic cleaning function for the insulation posts 15. Specifically, a cleaning assembly 3 for cleaning the insulating support column 15 is also provided on the top side of the base 11. The protection mechanism 2 also includes a transmission seat 25 rotatably mounted on the top side wall of the cylinder 21. The lifting rod 2221 passes through the interior of the transmission seat 25 and is splinedly connected to the transmission seat 25. Therefore, the lifting rod 2221 can slide freely axially relative to the transmission seat 25, but the two are locked in the circumferential direction, that is, the rotation of the lifting rod 2221 can be directly and equally transmitted to the transmission seat 25.

[0033] like Figure 3 and Figure 7 As shown, the cleaning assembly 3 includes a hollow support cylinder 31 fixed to the upper surface of the base 11, and an annular brush 32 rotatably mounted on the top side of the support cylinder 31. An insulating support column 15 passes through the central hole of the support cylinder 31 and the annular brush 32. The inner ring of the annular brush 32 is provided with bristles that contact the outer surface of the insulating support column 15. The transmission seat 25 and the annular brush 32 are connected by a synchronizing element 4. It should be noted that the synchronizing element 4 can be a synchronous pulley set, a sprocket and chain set, or a meshing gear pair. It should be noted that when the tripping action occurs, the lifting rod 2221 moves downward under the drive of the connecting assembly 23 and rotates under the action of the spiral guide groove 2211. At this time, the rotational movement of the lifting rod 2221 drives the transmission seat 25 to rotate synchronously through a spline connection. The transmission seat 25 then transmits the rotational power to the annular brush 32 through the synchronizing element 4. The annular brush 32 rotates around the axis of the insulating support 15, and the bristles of its inner ring clean the entire circumferential surface of the insulating support 15, removing adhering dust, salt spray, oil and other contaminants in a timely manner. This realizes the linkage between the opening action and the cleaning action. In each opening operation, the insulating support 15 will be automatically rotated and cleaned, ensuring that the surface of the insulating support 15 remains clean and dry for a long time. This effectively prevents leakage or short circuit accidents caused by flashover or wet flashover, and greatly improves the safety and reliability of the equipment in harsh outdoor environments.

[0034] Combined with appendix Figures 1-8 The working principle of the above embodiments is as follows: When a tripping operation is required, the operating drive handle 161 drives the rotating rod 162 to rotate. On one hand, the swing arm 163 and connecting block 164 push the post insulator 13 upward, causing the post insulator 13 to cause the isolation blade 14 to flip upward and disengage, thus achieving circuit isolation. On the other hand, the rotation of the rotating rod 162 simultaneously drives the wheel frame 1651 and roller 1652 to rotate. The roller 1652 presses upward against the abutment plate 24, overcoming the elastic force of the return spring 225, and pushing the guide rod 223 and the liquid container 221 upward as a whole. At the same time, the isolation blade 14... The flipping mechanism pulls the lifting rod 2221 downwards via the connecting shaft 233, connecting rod 1 231, and connecting rod 232. As the lifting rod 2221 moves downwards, the stirring impeller 2222 moves with the lifting rod 2221 inside the liquid container 221, stirring the liquid inside the container to prevent sedimentation or stratification and ensure liquid uniformity. At the same time, the piston 2223 at its bottom end is inserted into the liquid delivery channel of the guide rod 223, squeezing the lubricating or protective liquid inside the liquid container 221 downwards and discharging it through the delivery pipe 224 to the rotating joint of the drive assembly 16, thus achieving automatic oil lubrication. When the circuit breaker is closed, the drive handle 161 rotates in the opposite direction, the roller 1652 disengages from the abutment plate 24, and the reset spring 225 pushes the liquid container 221 and the guide rod 223 to return to their original position. At the same time, the isolating blade 14 swings down, and through the connecting assembly 23, it drives the lifting rod 2221 to move up. The piston 2223 exits the infusion channel and stops the discharge. In this way, each circuit breaker opening operation is automatically accompanied by a lubrication action, achieving the effect of lubrication during operation.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A primary and secondary integrated vacuum circuit breaker, comprising a circuit breaker body (1) consisting of a base (11), an isolation cylinder (12), a post insulator (13), an isolation blade (14), an insulating post (15), and a drive assembly (16), characterized in that: One end and the inner side of the isolation blade (14) are respectively hinged to the isolation cylinder (12) and the insulating support (15); The base (11) is provided with a protection mechanism (2) to protect the drive assembly (16), and the drive assembly (16) is provided with an abutment (165) for use with the protection mechanism (2), wherein the abutment (165) includes a wheel frame (1651) and a roller (1652). The protective mechanism (2) includes a hollow cylinder (21), a liquid-containing assembly (22), and a connecting assembly (23). The liquid-containing assembly (22) includes a liquid-containing cylinder (221) and a mixing component (222) disposed inside the liquid-containing cylinder (221). The mixing component (222) is connected to the connecting assembly (23), and the connecting assembly (23) is connected to the inner side of the isolation blade (14). A guide rod (223) extending to the outside of the cylinder (21) is fixed to the bottom side of the liquid-containing cylinder (221). The outer surface of the guide rod (223) is equipped with a... The roller (1652) abuts against the mating plate (24), and the end of the guide rod (223) is fixedly connected to the infusion tube (224). The drive assembly (16) drives the post insulator (13) and the mating member (165) respectively. The post insulator (13) will lift and drive the isolation blade (14) to rotate and drive the mixing member (222) to move down using the connecting assembly (23). At the same time, the mating member (165) abuts against the mating plate (24) to drive the liquid container (221) to move up to perform liquid collection. The liquid is quickly discharged by moving the mixing member (222) down.

2. The primary and secondary integrated vacuum circuit breaker according to claim 1, characterized in that: The base (11) has an installation cavity (111) inside. The drive assembly (16) includes a drive handle (161), a rotating rod (162) rotatably installed inside the base (11) and passing through the installation cavity (111), a swing arm (163) fixed to the outer surface of the rotating rod (162), and a connecting block (164) fixed to the end of the post insulator (13). The connecting block (164) is hinged to the swing arm (163). The drive handle (161) drives the rotating rod (162) to rotate, and the swing arm (163) rotates synchronously and drives the post insulator (13) to move upward through the connecting block (164), thereby realizing the rotation of the isolation blade (14).

3. The primary and secondary integrated vacuum circuit breaker according to claim 2, characterized in that: The top side of the abutment plate (24) is equipped with a return spring (225) surrounding the outside of the guide rod (223), the wheel frame (1651) is fixed to the outer surface of the rotating rod (162); the cylinder (21) is fixed to the upper surface of the base (11), and its bottom side extends into the interior of the mounting cavity (111), the top side of the mixing component (222) extends to the outside of the cylinder (21), wherein the cylinder (21) is filled with lubricating fluid and protective fluid, and the liquid is loaded by the liquid holding assembly (22) to lubricate and protect the rotating part of the drive assembly (16).

4. The primary and secondary integrated vacuum circuit breaker according to claim 1, characterized in that: The upper and lower ends of the guide rod (223) are respectively connected to the liquid container (221) and the infusion pipe (224); the mixing component (222) includes a lifting rod (2221), a stirring impeller (2222) fixed at the bottom end of the lifting rod (2221) and a piston (2223) installed on the bottom side of the stirring impeller (2222), wherein the diameter of the piston (2223) is adapted to the infusion channel inside the guide rod (223), and the top side of the liquid container (221) is open.

5. A primary and secondary integrated vacuum circuit breaker according to claim 4, characterized in that: The liquid holding assembly (22) also includes a guide, which includes a mounting bracket (226) fixed to the top side of the liquid holding cylinder (221). A guide sleeve (227) is fixed at the center of the mounting bracket (226). The guide sleeve (227) is hollow. A lifting rod (2221) passes through the inside of the guide sleeve (227). A guide rod (228) is fixed inside the guide sleeve (227). A ball bearing (229) that rolls with the lifting rod (2221) is rotatably mounted at the end of the guide rod (228).

6. A primary and secondary integrated vacuum circuit breaker according to claim 5, characterized in that: The lifting rod (2221) has a spirally arranged guide groove (2211) inside. The guide groove (2211) is arranged around the outer surface of the lifting rod (2221). The ball bearing (229) rolls with the guide groove (2211) and rotates when the lifting rod (2221) is displaced. A return spring (2210) is installed between the outer surface of the lifting rod (2221) and the top side of the guide sleeve (227).

7. A primary and secondary integrated vacuum circuit breaker according to claim 4, characterized in that: The connecting assembly (23) includes a first connecting rod (231), a second connecting rod (232), and a connecting shaft (233). The first connecting rod (231) and the second connecting rod (232) are hinged at opposite ends, and the bottom end of the second connecting rod (232) is rotatably connected to the top end of the lifting rod (2221).

8. A primary and secondary integrated vacuum circuit breaker according to claim 7, characterized in that: One end of the connecting shaft (233) is hinged to the top of the first connecting rod (231), and the other end of the connecting shaft (233) is hinged to the outside of the isolation blade (14). When the isolation blade (14) flips and disengages from the support insulator (13), the connecting shaft (233) drives the first connecting rod (231) and the second connecting rod (232) to move down, thereby realizing the downward movement of the lifting rod (2221).

9. A primary and secondary integrated vacuum circuit breaker according to claim 4, characterized in that: The top side of the base (11) is provided with a cleaning component (3) for cleaning the insulating support (15). The protection mechanism (2) also includes a transmission seat (25) rotatably disposed on the top side of the cylinder (21). A synchronizing element (4) is provided between the transmission seat (25) and the cleaning component (3). The lifting rod (2221) passes through the inside of the transmission seat (25). The transmission seat (25) and the lifting rod (2221) are splined. When the lifting rod (2221) is raised and rotated, it drives the transmission seat (25) to rotate. The synchronizing element (4) drives the cleaning component (3) to work, thereby achieving cleaning and protection of the insulating support (15).

10. A primary and secondary integrated vacuum circuit breaker according to claim 9, characterized in that: The cleaning assembly (3) includes a hollow support cylinder (31) and an annular brush (32) rotatably mounted on the top side of the support cylinder (31). An insulating support column (15) passes through the support cylinder (31) and the annular brush (32). The synchronizing element (4) is connected to the annular brush (32) in a transmission manner.

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