Primary and secondary fusion complete pole-mounted circuit breaker for rapid opening and closing

Abstract

The utility model discloses a rapid opening and closing primary and secondary fusion complete column-mounted circuit breaker, which belongs to the technical field of power grid equipment, and comprises a base and a plurality of pole columns arranged on the base, an operating mechanism for driving an insulating column to move is arranged in the base, and the operating mechanism comprises an electromagnetic coil, a driving rod, a linkage mechanism and a locking mechanism, a movable iron core matched with the electromagnetic coil is arranged on the driving rod, and the insulating column in each pole is connected with the driving rod through a linkage mechanism; the linkage mechanism comprises a plurality of fixed seats which are fixed on the driving rod at intervals, and the insulating columns in the pole columns correspond to the plurality of fixed seats one by one; the top of the fixing base is concaved inwards to form a positioning cavity, a first positioning plane and a second positioning concave cambered surface are formed at the bottom of the positioning cavity, and the first positioning plane is higher than the second positioning concave cambered surface. According to the primary and secondary fusion complete column-mounted circuit breaker, the speed, safety and stability of opening and closing can be remarkably improved, and the energy consumption of opening and closing and the damage rate of the whole equipment are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power grid equipment, in particular to a primary and secondary integrated pole-mounted circuit breaker. Background Art

[0002] As an intelligent power grid equipment, the integrated primary and secondary pole-mounted circuit breaker has the characteristics of integrated primary and secondary circuit equipment and functions. It is mainly used to realize the segmentation, control and protection of power lines, and plays an important role in the comprehensive monitoring and management of power systems. The main structure of the integrated primary and secondary pole-mounted circuit breaker includes a pole and a base. Several poles (usually three) are fixed on the base. The pole is equipped with a vacuum arc chamber. The vacuum arc chamber is equipped with a moving contact and a static contact. The base is provided with an operating mechanism for realizing the opening and closing excitation. When the pole-mounted circuit breaker is opened under the action of the operating mechanism, the arc generated can be quickly extinguished due to the higher vacuum degree in the vacuum arc chamber and the magnetic field in the contact gap, so as to achieve the purpose of breaking. Intelligent primary and secondary integrated pole-mounted circuit breakers usually also include voltage transformers and current transformers, which are used to collect voltage signals and current signals on the line respectively. They also usually include transformer coils, capacitors, etc. (usually installed in feeder terminal units (FTUs)) to draw power from the line as the power supply for the operating mechanism, related control modules, and signal acquisition modules.

[0003] In the patent application number CN202520016675.9, entitled "An Intelligent Primary-Secondary Integrated Pole-Mounted Circuit Breaker", in order to achieve rapid opening and closing, its technical solution uses an electromagnetic structure to drive the driving rod to move, and drives the insulating column at the lower end of the pole to rise and fall through a linkage mechanism to achieve opening and closing. Specifically, in its solution, its linkage mechanism is mainly realized through an articulated connecting rod, which drives the connecting rod to move, and then drives the insulating column to rise and fall through the connecting rod, thereby achieving rapid opening and closing of several poles.

[0004] However, during the actual application of the patented technology, the applicant discovered the following problems:

[0005] 1. Since the overall pole is set vertically, the lifting and lowering of the insulating column is achieved through the connecting rod, so the connecting rod will be affected by its gravity when opening and closing the switch. Especially when closing the switch, the connecting rod needs to fully support the insulating column and withstand a large force. Over time, the connecting rod is very easy to break or bend, and the hinge shaft at the hinge of the connecting rod is broken, and the insulating column linked with it cannot be lifted or lowered, resulting in failure of the linkage structure, inability to achieve linkage opening and closing, and also increasing the damage rate of the equipment.

[0006] 2. When one or more connecting rods break and fail, multiple poles cannot be opened and closed synchronously during opening and closing. This will cause some poles to be disconnected during opening and closing, thereby causing the line to be disconnected. Especially during opening, if not all poles are disconnected, the rear-end electrical equipment is very likely to be damaged due to short circuits (such as burning of electrical components, fire, etc.), or because of incomplete opening, subsequent operators are at risk of electric shock, all of which increase the safety risks of equipment use.

[0007] 3. When designing the connecting rod, in order to achieve the linkage with the driving rod and the insulating column, realize the relative movement of the two, and realize the lifting effect on the insulating column, the hinge points of the connecting rod and the two cannot be located in the same vertical plane, that is, the hinge points of the connecting rod and the two cannot be located at the same point in the length direction of the driving rod. The entire connecting rod is always in a tilted state. This requires a large force to act on the insulating column and the pole column to achieve vertical lifting when the driving rod is driven, so the driving force required for the driving rod is large, which increases the energy consumption of the equipment. Especially when closing the switch, the driving force needs to overcome the torque force of the connecting rod, and the driving force requirement is even greater, which is completely not conducive to the low-energy use of the equipment. This will also affect the speed of opening and closing the switch. In addition, this type of structure also requires a large magnetic force for the first locking mechanism and the second locking mechanism to achieve the locking of the driving rod, which undoubtedly increases the manufacturing cost and difficulty of the equipment.

[0008] 4. When designing the first locking mechanism and the second locking mechanism, a flexible pad is used to alleviate the impact force between the first permanent magnet and the second permanent magnet, which can play a certain buffering role in practical applications. However, no matter whether the flexible pad is arranged on one side of the first permanent magnet or on one side of the second permanent magnet, when locked, the permanent magnet on the remaining side will still be subjected to a large impact under the action of the rapid impact force and produce a large impact sound or impact vibration, so that the base or the driving rod has an obvious impact sound after the impact, and the vibration is strong, which affects the stable and long-term use of the equipment and the stability of the pole after opening and closing.

[0009] In view of this, the utility model aims to provide a primary and secondary integrated pole-mounted circuit breaker with fast opening and closing speed, stable linkage structure and safe use on the basis of the above-mentioned patent technical problem. Utility Model Content

[0010] The purpose of the utility model is to provide a primary and secondary integrated pole-mounted circuit breaker, which has a more stable linkage opening and closing structure through a reasonable linkage structure design, can significantly improve the speed, safety and stability of opening and closing, and reduce the energy consumption of opening and closing and the overall equipment damage rate.

[0011] The purpose of the utility model is mainly achieved through the following technical solutions: a primary and secondary integrated pole-mounted circuit breaker, comprising a base and a plurality of poles mounted on the base, the insulating poles in each pole extending into the base, an operating mechanism for driving the insulating pole to move is arranged in the base, the operating mechanism comprises an electromagnetic coil, a driving rod, a linkage mechanism and a locking mechanism, the electromagnetic coil is fixed in the base, the driving rod is slidably supported in the base, a moving iron core adapted to the electromagnetic coil is arranged on the driving rod, the insulating poles in each pole are connected to the driving rod through a linkage mechanism; the linkage mechanism is a plurality of fixed seats fixed at intervals on the driving rod, the insulating poles in each pole are connected to the plurality of fixed seats The fixed seats correspond to each other one by one; the top of the fixed seat is concave to form a positioning cavity, and the bottom of the positioning cavity is formed with a first positioning plane and a second positioning concave arc surface, the height of the first positioning plane is higher than the second positioning concave arc surface, and a circular arc-shaped smooth transition surface is formed between the first positioning plane and the second positioning concave arc surface; the insulating columns in each pole are supported in the positioning cavity of the corresponding fixed seat and are synchronously realized under the action of the driving rod: the driving rod translates to drive the insulating columns in each pole to transition from the first positioning plane to the second positioning concave arc surface to realize the pole opening; or, the driving rod translates in the opposite direction to drive the insulating columns in each pole to transition from the second positioning concave arc surface to the first positioning plane to realize the pole closing.

[0012] Based on the above technical solution, the highest height of the smooth transition surface is higher than the height of the first positioning plane.

[0013] Based on the above technical solution, the fixing seat is made of stainless steel.

[0014] Based on the above technical solution, the driving rod is a hollow rod.

[0015] Based on the above technical solution, a first ball is embedded in the bottom of the insulating column in each pole, and the first ball at least partially extends to the end of the insulating column to achieve relative sliding of the two when the fixing seat translates.

[0016] Based on the above technical solution, a number of support components are also arranged in the base; the support components include a support plate connected to the base and a C-shaped support seat fixed on the support plate; both sides of the C-shaped opening of the C-shaped support seat extend inward to form a slot plate, and a second ball is embedded in the end of the slot plate, and the second ball at least partially extends to the upper and lower end surfaces of the slot plate; both sides of the drive rod are provided with sliding grooves, and the slot plates of the C-shaped support seat are respectively inserted into the sliding grooves on both sides to realize a sliding connection with the drive rod.

[0017] Based on the above technical solution, the locking mechanism includes a first locking mechanism and a second locking mechanism respectively arranged at both ends of the driving rod, and the first locking mechanism and the second locking mechanism have the same structure; the first locking mechanism or the second locking mechanism includes a first permanent magnet, a flexible pad and a second permanent magnet, the first permanent magnet is arranged at the end of the driving rod, the second permanent magnet is fixed on the base shell of the base, and the flexible pad is fixed to the side of the second permanent magnet facing the first permanent magnet; a shock absorbing assembly is arranged on the first permanent magnet; the shock absorbing assembly includes an elastic rubber sheath sleeved on the end of the first permanent magnet, and the elastic rubber sheath forms an annular shock absorbing rubber ring on the side facing the second permanent magnet, and the annular shock absorbing rubber ring is hollow inside.

[0018] Based on the above technical solution, a plurality of elastic metal rings are embedded in the annular shock-absorbing rubber ring, and the plurality of elastic metal rings are evenly distributed in the annular shock-absorbing rubber ring along a ring shape.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The linkage mechanism of the utility model cancels the structural design of multiple links, and utilizes the structural design of the fixed seat to realize the movement and support of the insulating column, which can effectively avoid the failure of opening and closing and equipment failure caused by the breakage of the connecting rod. When linked, the insulating column slides and shifts between the first positioning plane and the second positioning concave arc surface to realize opening and closing. Not only is the opening and closing fast and energy-saving, but it only needs to overcome the gravity of the pole and a small amount of sliding friction to achieve it. In addition, the fixed seat is not easy to be damaged, and the service life is greatly extended.

[0021] 2. The first positioning plane of the utility model is a plane, and the second positioning concave arc surface is an inwardly concave arc surface, so that when the switch is in the opening and closing state, the insulating column can achieve good support and positioning, and the stability is also good. Combined with the locking mechanism, the stable state of the opening and closing can be ensured, and the overall safety and stability of the circuit breaker can be ensured.

[0022] 3. The support assembly of the utility model utilizes a C-shaped support seat to support the driving rod, which reduces the contact area and friction between the two compared to the prior art, thereby reducing the energy consumption required to move the driving rod. Combined with the hollow structure design of the driving rod, the weight of the driving rod can be further reduced to increase its response speed, and the energy consumption required for driving can also be reduced.

[0023] 4. The shock-absorbing design of the shock-absorbing assembly of the utility model combined with the flexible pad can reduce the reaction force when the two collide with each other, and the vibration after the collision is greatly reduced, which effectively protects the stability of the driving rod and the base, can quickly stabilize the position of the driving rod, and ensure fast and stable opening and closing of the gate and position locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 This is a first structural cross-sectional view of the base of the utility model, wherein the pole is in an open state;

[0027] Figure 3 This is a second structural cross-sectional view of the base of the utility model, wherein the pole is in a closed state;

[0028] Figure 4 is a structural schematic diagram of a fixed seat;

[0029] Figure 5 It is a structural cross-sectional view of the fixing seat;

[0030] Figure 6 is a schematic diagram of the structure of the support assembly;

[0031] Figure 7 It is a structural schematic diagram of the shock absorbing component;

[0032] The numbers in the figure represent:

[0033] 1. Base; 2. Pole; 3. Electromagnetic coil; 4. Driving rod; 5. Moving iron core; 6. Fixed seat; 7. Positioning cavity; 8. First positioning plane; 9. Second positioning concave arc surface; 10. Smooth transition surface; 11. First ball; 12. Support plate; 13. C-shaped support seat; 14. Slot plate; 15. Second ball; 16. Slide groove; 17. First permanent magnet; 18. Flexible pad; 19. Second permanent magnet; 20. Elastic rubber sheath; 21. Annular shock-absorbing rubber ring; 22. Elastic metal ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0035] like Figure 1-7As shown, the embodiment of the utility model provides a primary-secondary integrated pole-mounted circuit breaker, comprising a base 1 and a plurality of poles 2 mounted on the base 1, wherein the insulating column in each pole 2 extends into the base 1, and an operating mechanism for driving the insulating column to move is arranged in the base 1, and the operating mechanism comprises an electromagnetic coil 3, a driving rod 4, a linkage mechanism and a locking mechanism, wherein the electromagnetic coil 3 is fixed in the base 1, and the driving rod 4 is slidably supported in the base 1, and a moving iron core 5 adapted to the electromagnetic coil 3 is arranged on the driving rod 4, and the insulating column in each pole 2 is connected to the driving rod 4 through a linkage mechanism;

[0036] The linkage mechanism is a plurality of fixing seats 6 fixed at intervals on the driving rod 4, and the insulating posts in each pole 2 correspond to the plurality of fixing seats 6 one by one; a positioning cavity 7 is formed inwardly at the top of the fixing seat 6, and a first positioning plane 8 and a second positioning concave arc surface 9 are formed at the bottom of the positioning cavity 7, the height of the first positioning plane 8 is higher than the second positioning concave arc surface 9, and a circular arc-shaped smooth transition surface 10 is formed between the first positioning plane 8 and the second positioning concave arc surface 9; the insulating posts in each pole 2 are supported in the positioning cavity 7 of the corresponding fixing seat 6 and synchronously realized under the action of the driving rod 4: the driving rod 4 translates to drive the insulating posts in each pole 2 to transition from the first positioning plane 8 to the second positioning concave arc surface 9 to realize pole opening; or, the driving rod 4 translates in the opposite direction to drive the insulating posts in each pole 2 to transition from the second positioning concave arc surface 9 to the first positioning plane 8 to realize pole closing.

[0037] When in use, when the insulating columns are all located on the first positioning plane 8 of the corresponding fixed seat 6, the switch is closed; when the insulating columns are all located in the second positioning concave arc surface 9 of the corresponding fixed seat 6, the switch is opened; when it is necessary to realize opening and closing, the driving rod 4 moves left or right under the action of the electromagnetic coil 3 and the moving iron core 5, and the fixed seat 6 fixed thereon translates in the same direction with it, and then the insulating column arranged therein is based on its vertical setting. When the fixed seat 6 translates, the insulating column can only slide from the second positioning concave arc surface 9 along the smooth transition surface 10 to the first positioning plane 8, or slide from the first positioning plane 8 along the smooth transition surface 10 to the second positioning concave arc surface 9, thereby realizing opening and closing. In the switching process, the insulating column and the fixed seat 6 are in sliding friction, and it can change quickly with the translation of the fixed seat 6. The opening and closing speed is fast, the energy consumption is low, and it only needs to overcome the gravity of the pole and a small amount of sliding friction to achieve it. The fixed seat is also not easy to be damaged, and the service life is greatly extended. At the same time, the first positioning plane 8 is a plane, and the second positioning concave arc surface 9 is an inwardly concave arc surface, so that when the switch is in the opening and closing state, the insulating column can achieve good support and positioning, and the stability is also good. Combined with the locking mechanism, the stable state of the opening and closing can be ensured, and the overall safety and stability of the circuit breaker can be ensured.

[0038] It should be noted that other specific structures of the primary and secondary integrated pole-mounted circuit breaker in this embodiment, such as the base 1, the pole 2 and the operating mechanism, are fully recorded in the prior art patent (application number CN202520016675.9, named an intelligent primary and secondary integrated pole-mounted circuit breaker), so this embodiment will no longer repeat its structure, principle, etc.

[0039] It should be further explained that, when the moving and static contacts in the vacuum tube in the pole are opened, the reverse magnetic field caused by the current path will cause an electromotive repulsion between the contacts. Therefore, when the present structure performs the pole opening action, the conductive column connected to the insulating column can fall due to the above electromotive repulsion, the elastic force of the elastic bellows on the vacuum tube, and the self-weight of the conductive column, thereby completing the opening action with an extremely fast response speed.

[0040] In specific applications, considering the stability of the insulating column and ensuring the position of the insulating column after closing, in this embodiment, after closing, the insulating column is located at the (right) end of the first positioning plane 8 and abuts against the side wall of the positioning cavity 7 above the first positioning plane 8. Therefore, after closing, the insulating column can be abutted against the side wall formed by the fixing seat 6 to stabilize it on the first positioning plane 8, thereby achieving a stable closing operation. Since the second positioning concave arc surface 9 can directly position the insulating column and does not need to be considered too much after the opening is completed, this embodiment only considers a more stable closing method.

[0041] As a specific implementation, the highest height of the smooth transition surface 10 is higher than the height of the first positioning plane 8. When the insulating column is closed, it is located on the first positioning plane 8. In order to ensure its stability, the highest height of the smooth transition surface 10 is higher than the horizontal height of its plane, and then the smooth transition surface 10 will form a slope with the first positioning plane 8. The insulating column will also be stably supported on the first positioning plane 8 under no external force or very small external force, so as to achieve the purpose of stabilizing the structure.

[0042] As a specific implementation, the fixing seat 6 is made of stainless steel. In order to ensure the stable support of the fixing seat 6 and to minimize the friction, the fixing seat 6 of this embodiment is made of stainless steel, so that the structural strength is high, and the smooth surface formed by the stainless steel is smoother and the friction coefficient is smaller.

[0043] As a specific implementation, the driving rod 4 is a hollow rod. The driving rod 4 is designed to be circular as a whole, and a through hole is formed in the middle along the central axis, thereby forming a hollow rod body structure, which can reduce the overall weight of the driving rod 4, improve its response speed and reduce the energy consumption required for its driving, and further improve the opening and closing speed.

[0044] As a specific implementation, the bottom of the insulating column in each pole 2 is embedded with a first ball 11, and the first ball 11 at least partially extends to the end of the insulating column to achieve relative sliding of the two when the fixed seat 6 translates. The first ball 11 contacts the corresponding plane in the fixed seat 6. When the fixed seat 6 translates, the first ball 11 rolls itself to reduce the friction with the fixed seat 6. At the same time, under the action of the first ball 11, the insulating column can also transition more smoothly between the first positioning plane 8 and the second positioning concave arc surface 9, ensuring smooth implementation of the opening and closing of the switch.

[0045] like Figure 6 As shown, a plurality of support components are also arranged in the base 1; the support components include a support plate 12 connected to the base 1 and a C-shaped support seat 13 fixed on the support plate 12; both sides of the C-shaped opening of the C-shaped support seat 13 extend inward to form a slot plate 14, and a second ball 15 is embedded in the end of the slot plate 14, and the second ball 15 at least partially extends to the upper and lower end surfaces of the slot plate 14; both sides of the driving rod 4 are provided with sliding grooves 16, and the slot plates 14 of the C-shaped support seat 13 are respectively inserted into the sliding grooves 16 on both sides to achieve sliding connection with the driving rod 4.

[0046] In the prior art, the drive rod 4 has several completely wrapped support structures to support and restrict the direction, which makes the interaction force between the drive rod 4 and the support structure larger, the driving energy consumption of the drive rod 4 increases, and the coaxiality of several support structures with the drive rod 4 needs to be considered when setting, which undoubtedly increases the difficulty of installation.

[0047] Here, this embodiment is designed through a C-shaped support seat 13, by setting a slide groove 16 on both sides of the driving rod 4, using the slot plate 14 to mate with it, and after the pairing is completed, the second ball 15 contacts with the slide groove 16, so that the driving rod 4 is supported as a whole, and the contact area with the support component is small, and the obstruction to the driving rod 4 is reduced. At the same time, based on the second ball 15, the driving rod 4 can be rolled. Support, further reducing the friction of the support assembly on the driving rod 4, to ensure that the driving rod 4 can be stably translated with low energy consumption.

[0048] like Figure 3 , Figure 7As shown, the locking mechanism includes a first locking mechanism and a second locking mechanism respectively arranged at both ends of the driving rod 4, and the first locking mechanism and the second locking mechanism have the same structure; the first locking mechanism or the second locking mechanism includes a first permanent magnet 17, a flexible pad 18 and a second permanent magnet 19, the first permanent magnet 17 is arranged at the end of the driving rod 4, the second permanent magnet 19 is fixed on the base shell of the base 1, and the flexible pad 18 is fixed to the side of the second permanent magnet 19 facing the first permanent magnet 17; a shock absorbing assembly is arranged on the first permanent magnet 17; the shock absorbing assembly includes an elastic rubber sheath 20 sleeved on the end of the first permanent magnet 17, and the elastic rubber sheath 20 forms an annular shock absorbing rubber ring 21 on the side facing the second permanent magnet 19, and the annular shock absorbing rubber ring 21 is hollow inside.

[0049] During application, when the first locking mechanism or the second locking mechanism is locked, the first permanent magnet 17 and the second permanent magnet 19 approach each other. When they are close to a certain distance, the elastic rubber sheath 20 and the flexible pad 18 contact and deform each other. Since the impact force is large when the driving rod 4 is translated, the impact of the first permanent magnet 17 on the flexible pad 18 and the base 1 is large. After the shock absorbing assembly is set, the annular shock absorbing rubber ring 21 is deformed after contacting the flexible pad 18 to buffer its impact force. At the same time, the flexible pad 18 is deformed synchronously to further alleviate the impact force. The combination and interaction of the two finally have a good impact effect, until the first locking mechanism or the second locking mechanism is locked, the reaction force on the base 1 and the driving rod 4 as a whole is reduced, and then the vibration amplitude of the driving rod 4 is small after the locking is completed, and it can quickly achieve stillness.

[0050] As a specific implementation, a plurality of elastic metal rings 22 are embedded in the annular shock-absorbing rubber ring 21, and the plurality of elastic metal rings 22 are evenly distributed in the annular shock-absorbing rubber ring 21 along a ring shape. During use, the annular shock-absorbing rubber ring 21 is often deformed by force and thus damaged faster. Based on this, in this embodiment, a plurality of elastic metal rings 22 are embedded therein, and the elastic metal rings 22 are used as the skeleton structure supporting the annular shock-absorbing rubber ring 21, thereby increasing its pressure bearing capacity and better ensuring that the shape of the annular shock-absorbing rubber ring 21 is maintained for a long time.

[0051] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A fast-opening and closing integrated primary and secondary pole-mounted circuit breaker, comprising a base and a plurality of poles mounted on the base, wherein the insulating poles in each pole extend into the base, and an operating mechanism for driving the insulating pole to move is arranged in the base, and the operating mechanism comprises an electromagnetic coil, a driving rod, a linkage mechanism and a locking mechanism, wherein the electromagnetic coil is fixed in the base, the driving rod is slidably supported in the base, a moving iron core adapted to the electromagnetic coil is arranged on the driving rod, and the insulating poles in each pole are connected to the driving rod through the linkage mechanism; It is characterized in that The linkage mechanism is a plurality of fixed seats fixed at intervals on the driving rod, and the insulating posts in each pole correspond to the plurality of fixed seats one by one; The top of the fixing seat is concave to form a positioning cavity, and the bottom of the positioning cavity is formed with a first positioning plane and a second positioning concave arc surface, the height of the first positioning plane is higher than the second positioning concave arc surface, and a circular arc-shaped smooth transition surface is formed between the first positioning plane and the second positioning concave arc surface; The insulating columns in each pole are supported in the positioning cavity of the corresponding fixing seat and are synchronously realized under the action of the driving rod: The driving rod translates to drive the insulating column in each pole to transition from the first positioning plane to the second positioning concave arc surface to achieve pole opening; or, the driving rod translates in the opposite direction to drive the insulating column in each pole to transition from the second positioning concave arc surface to the first positioning plane to achieve pole closing.

2. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The highest height of the smooth transition surface is higher than the height of the first positioning plane.

3. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The fixing seat is made of stainless steel.

4. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The driving rod is a hollow rod.

5. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: A first ball is embedded in the bottom of the insulating column in each pole, and the first ball at least partially extends to the end of the insulating column to achieve relative sliding of the two when the fixing seat moves in translation.

6. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: Several supporting components are also arranged in the base; The support assembly includes a support plate connected to the base, and a C-shaped support seat fixed on the support plate; Both sides of the C-shaped opening of the C-shaped support seat extend inward to form a slot plate, and a second ball is embedded in the end of the slot plate, and the second ball at least partially extends to the upper and lower end surfaces of the slot plate; Slide grooves are arranged on both sides of the driving rod, and the slot plates of the C-shaped supporting seat are respectively inserted into the slide grooves on both sides to achieve sliding connection with the driving rod.

7. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The locking mechanism comprises a first locking mechanism and a second locking mechanism respectively arranged at two ends of the driving rod, and the first locking mechanism and the second locking mechanism have the same structure; The first locking mechanism or the second locking mechanism comprises a first permanent magnet, a flexible pad and a second permanent magnet, wherein the first permanent magnet is arranged at the end of the driving rod, the second permanent magnet is fixed to the base shell of the base, and the flexible pad is fixed to the side of the second permanent magnet facing the first permanent magnet; A shock absorbing component is provided on the first permanent magnet; The shock absorbing assembly comprises an elastic rubber sleeve sleeved on the end of the first permanent magnet, and the elastic rubber sleeve forms an annular shock absorbing rubber ring on the side facing the second permanent magnet, and the annular shock absorbing rubber ring is hollow inside.

8. The primary and secondary integrated pole mounted circuit breaker according to claim 7, characterized in that: A plurality of elastic metal rings are also embedded in the annular shock-absorbing rubber ring, and the plurality of elastic metal rings are evenly distributed in the annular shock-absorbing rubber ring along a ring shape.

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