Primary and secondary fusion pole-mounted circuit breaker convenient to overhaul

Abstract

The invention relates to the technical field of pole-mounted circuit breakers, and discloses a primary and secondary fusion pole-mounted circuit breaker convenient to overhaul, which comprises an outer rack, a fixed frame is fixed in the outer rack, an energy storage main shaft is rotatably mounted on the fixed frame, an energy storage spring is arranged on the fixed frame, and when the energy storage main shaft rotates, the energy storage spring is stretched to store energy. The simple operation mode that the operation rod pulls the pull ring downwards is adopted, through mechanical linkage of the pull rope, the pulley, the frame body, the rack and the first gear, the energy storage main shaft can be driven to rotate and the energy storage spring is stretched to complete energy storage through single operation, the energy storage process is simplified, the operation complexity and labor intensity are reduced, and the energy storage efficiency is remarkably improved; the power grid demand can be quickly responded, the power supply reliability is ensured, and the misoperation risk caused by human fatigue is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pole-mounted circuit breakers, and in particular to a primary-secondary fusion pole-mounted circuit breaker that is easy to maintain. Background Art

[0002] The primary and secondary integrated pole-mounted circuit breaker is a key equipment in the construction of smart grids. By integrating primary and secondary equipment, it realizes the automatic monitoring, protection and control functions of the distribution network.

[0003] After searching, the Chinese patent with announcement number CN217847801U discloses a pole-mounted circuit breaker, which includes a circuit breaker body, a cover plate slidably connected to the inside of the circuit breaker body, a connecting shell fixedly connected to the cover plate, the connecting shell contacts the circuit breaker body, a mounting frame fixedly connected to the lower end of the circuit breaker body, a slide groove provided on the mounting frame, a slider slidably connected to the inside of the slide groove, one end of the slider fixedly connected to the fixing frame, the fixing frame contacts the mounting frame, a clamping mechanism is provided on the circuit breaker body, and a limit mechanism is provided on the cover plate. The above solution is provided with components such as a limit frame, a push plate, and a spring. By moving the push plate, the push plate drives the limit frame to slide out of the circuit breaker body, thereby releasing the limit on the cover plate and allowing the cover plate to be removed from the circuit breaker body. This solves the problem that it is inconvenient to remove the cover plate during maintenance of the existing pole-mounted circuit breaker. However, the above solution still has the following shortcomings in actual use:

[0004] The pole-mounted circuit breaker proposed in the above solution does not have the function of rapid energy storage. The pole-mounted circuit breaker is usually provided with an energy storage handle. When storing energy, the staff hooks the energy storage handle with a long rod-shaped operating lever and stores energy by continuously pulling the energy storage handle up and down. This operation is not convenient, the process is cumbersome, time-consuming and labor-intensive, which increases the complexity and time cost of the operation. It cannot respond quickly to needs when performing emergency repair tasks.

[0005] Therefore, it is necessary to design a primary and secondary fusion pole-mounted circuit breaker that is easy to maintain to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a primary-secondary fusion pole-mounted circuit breaker that is easy to maintain.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A primary and secondary fusion column mounted circuit breaker that is easy to maintain, comprising an outer frame, a fixing frame fixed inside the outer frame, an energy storage spindle rotatably mounted on the fixing frame, an energy storage spring provided on the fixing frame, and when the energy storage spindle rotates, the energy storage spring stretches and stores energy;

[0009] The energy storage main shaft is fixedly sleeved with a first gear, and a driving unit is provided inside the outer frame. The driving unit is composed of a driving assembly and a pulling assembly. The driving assembly is provided with a frame and a rack. The rack is slidably provided on the frame. The pulling assembly is used to pull the rack to move. When the rack moves, it meshes with the first gear and drives the energy storage main shaft to rotate through the first gear.

[0010] Wherein, a damping component is provided on the frame, and the damping component is used to press the rack;

[0011] Wherein, a control component is provided inside the outer frame, and the control component is used to control the position of the rack in the vertical direction.

[0012] As a preferred technical solution of the present invention, the driving assembly also includes two limit openings, two limit blocks, a reset spring, two guide blocks and two guide rods. The two limit openings are both opened on the frame, the two limit blocks are respectively fixed on both sides of the rack, and the two limit blocks slide in the two limit openings respectively. One end of the reset spring is connected to the frame, and the other end of the reset spring is connected to the fixed frame. The two guide blocks are respectively fixed on both sides of the frame, and the two guide rods are both fixed inside the outer frame. The two guide blocks are respectively slidably mounted on the two guide rods.

[0013] As a preferred technical solution of the present invention, the side surface of the rack and the side surface of the frame are in contact with each other.

[0014] As a preferred technical solution of the present invention, the pulling assembly includes a through-hole, a pull rope, a pull ring and two pulleys, the through-hole is opened on the outer frame, one end of the pull rope is connected to one of the guide blocks, the other end of the pull rope passes through the through-hole and extends to the outside of the outer frame, the pull ring is connected to the end of the pull rope located outside the outer frame, one of the pulleys is installed inside the outer frame, and the other pulley is installed on the side of the outer frame, and the pull rope passes around the two pulleys.

[0015] As a preferred technical solution of the present invention, the damping assembly includes a mounting port, a mounting frame, a sliding rod and a collar. The mounting port is opened at one end of the frame, the mounting frame is fixed to the side of the frame, a through opening is opened on the mounting frame, and the through opening is arranged opposite to the mounting port. The sliding rod is slidably arranged in the through opening, one end of the sliding rod passes through the mounting port and is fixed with a damping leather head, the damping leather head is in contact with the rack, the collar is fixedly sleeved on the end of the sliding rod away from the damping leather head, and the collar and the mounting frame are connected by a booster spring.

[0016] As a preferred technical solution of the present invention, the control assembly includes two slides, a fixed rod 1, a fixed rod 2, a control panel 1 and a control panel 2, the two slides are respectively opened at the two ends of the frame, the fixed rod 1 and the fixed rod 2 are respectively fixed at the two ends of the rack, the fixed rod 1 and the fixed rod 2 slide in the two slides respectively, the control panel 1 and the control panel 2 are respectively arranged at the two ends of the guide rod, the control panel 1 and the control panel 2 are both provided with inclined surfaces, and the control panel 1 and the control panel 2 are both fixed to the inside of the outer frame by a cross bar.

[0017] As a preferred technical solution of the present invention, the ends of the fixing rod 1 and the fixing rod 2 are both hemispherical structures.

[0018] As a preferred technical solution of the present invention, teeth are provided on the upper and lower sides of the rack, and a buffer assembly is provided inside the outer frame. The buffer assembly is used to provide buffering for the rack when the rack is reset. The buffer assembly includes a buffer oil box, a rotating shaft, an impeller and a second gear. The buffer oil box is arranged above the rack, and oil is accumulated inside the buffer oil box. The buffer oil box is connected to the fixed frame through a connecting frame. The rotating shaft passes through the buffer oil box and is rotatably connected to the buffer oil box. The impeller is fixedly sleeved at one end of the rotating shaft located inside the buffer oil box, and the second gear is fixedly sleeved at one end of the rotating shaft located outside the buffer oil box. The second gear is located directly above the rack.

[0019] As a preferred technical solution of the present invention, the impeller is immersed in the oil, and there is a gap between the impeller and the inner wall of the buffer oil.

[0020] As a preferred technical solution of the present invention, the first fixing rod is arranged opposite to the inclined surface of the first control panel, and the second fixing rod is arranged opposite to the inclined surface of the second control panel.

[0021] The present invention has the following beneficial effects:

[0022] 1. This solution adopts a simple operation mode of pulling the pull ring under the operating lever. Through the mechanical linkage of the pull rope, pulley, frame, rack and first gear, a single operation can drive the energy storage main shaft to rotate and stretch the energy storage spring to complete energy storage. This simplifies the energy storage process, reduces operational complexity and labor intensity, significantly improves energy storage efficiency, can quickly respond to grid demand, ensure power supply reliability, and effectively avoid the risk of misoperation caused by human fatigue.

[0023] 2. When the energy storage operation is completed and the frame and rack move to the other side of the first gear, the second fixed rod contacts the inclined surface of the second control panel and guides the rack to move up to the upper limit position. After the staff removes the operating rod, when the frame and rack are reset in the reverse direction, the rack has been out of the meshing range of the first gear and will not reversely drive the energy storage spindle, thus completely eliminating the risk of malfunction of the energy storage mechanism in the non-operating state. Compared with traditional energy storage mechanisms, the energy storage spring may repeatedly store energy or dissipate energy due to mechanical inertia or mistouch during the reset phase. This solution uses the dual protection of control components and mechanical limits to trigger the energy storage action only when the pull ring is actively moved forward by the manual operating rod, and automatically isolates the power transmission during reverse reset.

[0024] 3. The mechanical stability and reliability of the energy storage mechanism are significantly optimized by arranging a damping component on the frame to dynamically press and position the rack: the damping component uses a pressurized spring to drive the sliding rod, so that the damping head continuously presses the rack to form an adjustable friction resistance. This design allows the rack to remain in a fixed position due to the compression of the damping head in the non-operating state, effectively resisting accidental displacement caused by gravity or vibration, and avoiding accidental triggering of the energy storage mechanism or accidental release of energy from the energy storage spring. During energy storage operation, when the fixed rod and the control board are in contact, the rack is in a fixed position due to the compression of the damping head. When the contact or fixing rod 2 contacts the control board 2, the rack breaks through the damping constraint due to mechanical linkage and completes directional movement. During the reset process, the damping component continues to press the rack to ensure that it moves only under active operation. During the reverse movement, the friction of the damping head and the mechanical limit function completely eliminate the risk of falling. This design, through the coordination of elastic compression and mechanical self-locking, not only ensures the precise triggering and efficient execution of the energy storage action, but also avoids the energy storage failure, mechanical wear or operational conflict caused by the downward movement of the rack due to gravity in traditional mechanisms.

[0025] 4. After the rack completes the energy storage operation and moves to the upper limit position, it moves in the opposite direction under the action of the reset spring force, and its upper teeth engage with the second gear, driving the impeller immersed in the oil to rotate. The oil resistance generated by the rotation of the impeller is transmitted to the rack through the rotating shaft and the second gear, forming a dynamic deceleration effect, so that the rack is reset at a steady rate, avoiding the violent collision between the fixed rod and the control board caused by rapid rebound in traditional mechanisms, and effectively eliminating the risk of damage to the mechanical structure caused by impact loads; at the same time, the buffer mechanism avoids the deformation or displacement interference of high kinetic energy impact on the precision structural components inside the external frame (such as gear meshing surfaces, bearing clearances, sensor positioning devices, etc.) by reducing the reset speed of the rack, thereby ensuring the geometric accuracy and fitting tolerances of precision components. In particular, for intelligent control modules that rely on micron-level assembly accuracy, the buffer component significantly improves the long-term stability and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic structural diagram of a primary and secondary fusion column mounted circuit breaker that is easy to maintain, as proposed by the present invention;

[0027] Figure 2 for Figure 1 A magnified view of the structure at point A;

[0028] Figure 3 Schematic diagram of the structure of the fixed frame and drive unit Figure 1 ;

[0029] Figure 4 for Figure 3 A magnified view of the structure at point B;

[0030] Figure 5 for Figure 3 A magnified view of the structure at C;

[0031] Figure 6 Schematic diagram of the structure of the fixed frame and drive unit Figure 2 ;

[0032] Figure 7 It is a structural diagram of the driving component and the pulling component;

[0033] Figure 8 It is a schematic diagram of the planar structure of the driving component, pulling component and control component;

[0034] Figure 9 Schematic diagram of the cross-sectional structure of the drive assembly;

[0035] Figure 10 for Figure 9 A magnified view of the structure at D;

[0036] Figure 11 Schematic diagram of the structure of the buffer component.

[0037] In the figure: 11, outer frame; 12, fixed frame; 13, energy storage spindle; 14, energy storage spring; 2, first gear; 31, frame; 32, rack; 33, limit opening; 34, limit block; 35, reset spring; 36, guide block; 37, guide rod; 41, through opening; 42, pull rope; 43, pull ring; 44, pulley; 51, installation opening; 52, installation frame; 53, sliding rod; 54, collar; 55, boost spring; 56, damping leather head; 60, slideway; 61, fixed rod 1; 62, fixed rod 2; 63, control board 1; 64, control board 2; 65, cross bar; 71, buffer oil box; 72, connecting frame; 73, rotating shaft; 74, impeller; 75, second gear. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Reference Figures 1-11 A primary and secondary fusion column-mounted circuit breaker that is easy to maintain includes an outer frame 11, a fixing frame 12 is fixed inside the outer frame 11, an energy storage main shaft 13 is rotatably installed on the fixing frame 12, and an energy storage spring 14 is provided on the fixing frame 12. When the energy storage main shaft 13 rotates, the energy storage spring 14 is stretched to store energy. When the primary and secondary fusion column-mounted circuit breaker proposed by the present invention is in use, when the staff needs to perform energy storage operation on the circuit breaker, the driving unit can be used to drive the energy storage main shaft 13 to rotate. When the energy storage main shaft 13 rotates, the energy storage spring 14 is stretched and energy storage action is performed.

[0040] The energy storage main shaft 13 is fixedly sleeved with a first gear 2, and a driving unit is provided inside the outer frame 11. The driving unit is composed of a driving assembly and a pulling assembly. A frame 31 and a rack 32 are provided in the driving assembly. The rack 32 is slidably arranged on the frame 31. The side surfaces of the rack 32 and the side surfaces of the frame 31 fit together. The pulling assembly is used to pull the rack 32 to move. When the rack 32 moves, it meshes with the first gear 2 and drives the energy storage main shaft 13 to rotate through the first gear 2. The driving assembly also includes two limit ports 33, two limit blocks 34, and a plurality of limit blocks. The reset spring 35, two guide blocks 36 and two guide rods 37, the two limit openings 33 are all opened on the frame 31, the two limit blocks 34 are respectively fixed on both sides of the rack 32, and the two limit blocks 34 slide in the two limit openings 33 respectively. One end of the reset spring 35 is connected to the frame 31, and the other end of the reset spring 35 is connected to the fixed frame 12. The two guide blocks 36 are respectively fixed on both sides of the frame 31, and the two guide rods 37 are both fixed inside the outer frame 11. The two guide blocks 36 are respectively slidably sleeved on the two guide rods 37.

[0041] The pulling assembly includes a through-hole 41, a pull rope 42, a pull ring 43 and two pulleys 44. The through-hole 41 is opened on the outer frame 31. One end of the pull rope 42 is connected to one of the guide blocks 36. The other end of the pull rope 42 passes through the through-hole 41 and extends to the outside of the outer frame 11. The pull ring 43 is connected to the end of the pull rope 42 located outside the outer frame 11. One of the pulleys 44 is installed inside the outer frame 11, and the other pulley 44 is installed on the side of the outer frame 11. The pull rope 42 passes around the two pulleys 44.

[0042] A control component is provided inside the outer frame 11, which is used to control the position of the rack 32 in the vertical direction. The control component includes two slides 60, a fixed rod 1 61, a fixed rod 2 62, a control board 1 63 and a control board 2 64. The two slides 60 are respectively opened at both ends of the frame 31, and the fixed rod 1 61 and the fixed rod 2 62 are respectively fixed at both ends of the rack 32. The end positions of the fixed rod 1 61 and the fixed rod 2 62 are both hemispherical structures. The fixed rod 1 61 and the fixed rod 2 62 slide in the two slides 60 respectively. The control board 1 63 and the control board 2 64 are respectively arranged at both ends of the guide rod 37. The control board 1 63 and the control board 2 64 are both provided with inclined surfaces. The control board 1 63 and the control board 2 64 are both fixed to the inside of the outer frame 11 by a cross bar 65. The fixed rod 1 61 is arranged opposite to the inclined surface of the control board 1 63, and the fixed rod 2 62 is arranged opposite to the inclined surface of the control board 2 64.

[0043] Reference Figure 8As shown, in the initial state, under the elastic force of the reset spring 35, the frame 31 and the rack 32 are located on one side of the first gear 2. At this time, the rack 32 and the first gear 2 do not contact each other. In this state, the top of the fixing rod 61 contacts the inclined surface of the control plate 63. Under the guidance of the inclined surface of the control plate 63, the rack 32 is located at the lower limit position. At this time, the two limit blocks 34 are respectively located at the bottom ends of the two limit openings 33. When performing the energy storage operation, the staff uses the operating rod to hook the pull ring 43 and pull the pull ring 43 downward, so that the pull ring 43 is moved to the corresponding position through the pull rope 42. The guide block 36 applies a pulling force, thereby causing the frame 31 to move. Two pulleys 44 are installed on the outer frame 11. The two pulleys 44 are used to change the force direction of the pull rope 42 so that the pull rope 42 can pull the frame 31 to move. The frame 31 moves, and the rack 32 moves accordingly, which causes the rack 32 to move from one side of the first gear 2 to the other side of the first gear 2 (hereinafter referred to as forward movement). In this process, the teeth at the lower end of the rack 32 will mesh with the first gear 2 and drive the first gear 2 to rotate. When the first gear 2 rotates under the action of the rack 32, The energy storage main shaft 13 rotates accordingly and stretches the energy storage spring 14, thereby completing the energy storage operation. In summary, the staff can store energy for the circuit breaker by pulling the pull ring 43 down through the operating lever. In contrast, the traditional energy storage method relies on the staff to pull the energy storage handle back and forth many times, which is cumbersome and physically demanding, and inefficient. Especially when dealing with multiple devices or emergency repairs, it is easy to delay power supply restoration due to too long a time consumption, and repetitive operations are prone to fatigue and misoperation, threatening the safety of power grid operation and maintenance. In this solution, the staff only needs to simply pull down the pull ring 4 through the operating lever. 3, a series of mechanical linkages can be triggered, so that the rack 32 meshes with the first gear 2 and drives the energy storage main shaft 13 to rotate, thereby completing the energy storage spring 14 stretching and storing energy. The entire process can be completed in a single operation, which simplifies the energy storage process, reduces the complexity of operation and physical exertion, improves the energy storage efficiency, meets the needs of rapid response, and reduces the risk of misoperation caused by human factors, providing a strong guarantee for the convenience, safety and power supply reliability of power grid operation and maintenance. It is worth noting that the energy storage principle of the energy storage main shaft 13 and the energy storage spring 14 is an existing technology and will not be elaborated on here.

[0044] When the frame 31 and the rack 32 move to the other side of the first gear 2, the fixed rod 2 62 will contact the inclined surface of the control plate 2 64. At this time, the fixed rod 2 62 will move along the inclined surface of the control plate 2 64 and drive the rack 32 to move upward, so that the rack 32 moves to the upper limit position. In this case, when the staff removes the operating lever, the frame 31 and the rack 32 will be reset under the elastic force of the reset spring 35 (hereinafter referred to as reverse movement). During the reset process, since the rack 32 has moved to the upper limit position, the rack 32 will not contact the first gear 2. This design can prevent the rack 32 from driving the energy storage spindle 13 to rotate again during the reverse movement. Under the action of the control component, the energy storage action will only be performed when the rack 32 moves forward, that is, when the staff uses the operating lever to pull down the pull ring 43, and the energy storage action will not be performed when the rack 32 moves in the reverse direction.

[0045] A damping assembly is provided on the frame 31, which is used to compress the rack 32. The damping assembly includes a mounting port 51, a mounting frame 52, a sliding rod 53 and a collar 54. The mounting port 51 is opened at one end of the frame 31, and the mounting frame 52 is fixed to the side of the frame 31. A through opening is opened on the mounting frame 52, and the through opening is arranged opposite to the mounting port 51. The sliding rod 53 is slidably arranged in the through opening. One end of the sliding rod 53 passes through the mounting port 51 and is fixed with a damping leather head 56. The damping leather head 56 is in contact with the rack 32. The collar 54 is fixedly sleeved on one end of the sliding rod 53 away from the damping leather head 56. The collar 54 is connected to the mounting frame 52 by a booster spring 55.

[0046] For the rack 32, a damping assembly for providing damping for the rack 32 is provided on the frame 31. For the damping assembly, the sliding rod 53 always has a tendency to approach the rack 32 under the elastic force of the boost spring 55, so that the damping leather head 56 at one end of the sliding rod 53 can always press the rack 32. Under the pressure of the damping leather head 56, the position of the rack 32 is fixed. Only when the fixed rod 1 61 contacts the control board 1 63, and the fixed rod 2 62 contacts the control board 2 64, the rack 32 will move. In other states, the rack 32 will remain stationary under the pressing action of the sliding rod 53. Through this design, the situation where the rack 32 moves downward under the action of gravity during the reverse movement can be avoided.

[0047] The rack 32 is provided with teeth on the upper and lower sides, and a buffer assembly is provided inside the outer frame 11. The buffer assembly is used to provide buffering for the rack 32 when the rack 32 is reset. The buffer assembly includes a buffer oil box 71, a rotating shaft 73, an impeller 74 and a second gear 75. The buffer oil box 71 is arranged above the rack 32, and oil is accumulated inside the buffer oil box 71. The buffer oil box 71 is connected to the fixed frame 12 through the connecting frame 72. The rotating shaft 73 passes through the buffer oil box 71 and is rotatably connected to the buffer oil box 71. The impeller 74 is fixedly sleeved on one end of the rotating shaft 73 located inside the buffer oil box 71. The impeller 74 is immersed in the oil, and there is a gap between the impeller 74 and the inner wall of the buffer oil. The second gear 75 is fixedly sleeved on one end of the rotating shaft 73 located outside the buffer oil box 71, and the second gear 75 is located directly above the rack 32.

[0048] The outer frame 11 is also provided with a buffer component that acts on the rack 32. The buffer component is used to provide a buffer for the reset of the rack 32 to prevent the rack 32 from rebounding quickly under the elastic force of the reset tension spring 35. The buffer component can reduce the movement speed of the rack 32 during the reset process to avoid a rapid collision between the fixed rod 1 61 and the control board 1 63, thereby protecting the relevant components. In addition, a number of precision structural components are provided inside the outer frame 11. The rack 32 under rapid collision may affect the precision of these structures. Therefore, the design of the buffer component can provide protection for the precision components inside the outer frame 11. Specifically, when the rack 32 moves to the upper limit position under the action of the fixed rod 2 62 and the control board 2 64, the teeth at the upper end of the rack 32 are just facing the second gear 75. Therefore, the rack 32 will mesh with the second gear 75 during the reverse movement. And drive the second gear 75 to rotate. When the second gear 75 rotates, it can drive the rotating shaft 73 to rotate, and the impeller 74 connected to the rotating shaft 73 rotates accordingly. Since the impeller 74 is immersed in the oil, the impeller 74 will receive resistance from the oil when it rotates. This resistance will be transmitted to the rack 32 through the rotating shaft 73 and the second gear 75, thereby achieving the effect of reducing the moving speed of the rack 32. It should be pointed out that when the rack 32 moves forward, the rack 32 meshes with the first gear 2 and does not mesh with the second gear 75. During this process, the energy storage action is carried out, but the buffer component does not take effect, which allows the staff to smoothly pull the rack 32 to move. When the rack 32 moves in the opposite direction, the rack 32 meshes with the second gear 75 and does not mesh with the first gear 2. During this process, the buffer component is running, and the energy storage action will not be carried out, so that the buffer component provides a buffering effect for the reverse movement of the rack 32.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A primary and secondary fusion column mounted circuit breaker that is easy to maintain, characterized in that: The invention comprises an outer frame (11), a fixing frame (12) is fixed inside the outer frame (11), an energy storage main shaft (13) is rotatably mounted on the fixing frame (12), an energy storage spring (14) is provided on the fixing frame (12), and when the energy storage main shaft (13) rotates, the energy storage spring (14) is stretched to store energy; The energy storage main shaft (13) is fixedly sleeved with a first gear (2), and a driving unit is provided inside the outer frame (11). The driving unit is composed of a driving component and a pulling component. The driving component is provided with a frame (31) and a rack (32). The rack (32) is slidably provided on the frame (31). The pulling component is used to pull the rack (32) to move. When the rack (32) moves, it meshes with the first gear (2) and drives the energy storage main shaft (13) to rotate through the first gear (2). Wherein, a damping component is provided on the frame (31), and the damping component is used to press the rack (32); A control component is provided inside the outer frame (11), and the control component is used to control the position of the rack (32) in the vertical direction.

2. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 1, characterized in that: The driving assembly further comprises two limiting openings (33), two limiting blocks (34), a reset spring (35), two guide blocks (36) and two guide rods (37). The two limiting openings (33) are both opened on the frame (31), the two limiting blocks (34) are respectively fixed on both sides of the rack (32), the two limiting blocks (34) slide in the two limiting openings (33), one end of the reset spring (35) is connected to the frame (31), the other end of the reset spring (35) is connected to the fixing frame (12), the two guide blocks (36) are respectively fixed on both sides of the frame (31), the two guide rods (37) are both fixed inside the outer frame (11), and the two guide blocks (36) are respectively slidably sleeved on the two guide rods (37).

3. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 2, characterized in that: The side surface of the rack (32) and the side surface of the frame (31) are fitted together.

4. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 2, characterized in that: The pulling assembly includes a through-hole (41), a pull rope (42), a pull ring (43) and two pulleys (44), wherein the through-hole (41) is opened on the outer frame (31), one end of the pull rope (42) is connected to one of the guide blocks (36), the other end of the pull rope (42) passes through the through-hole (41) and extends to the outside of the outer frame (11), the pull ring (43) is connected to the end of the pull rope (42) located outside the outer frame (11), one of the pulleys (44) is installed inside the outer frame (11), and the other pulley (44) is installed on the side of the outer frame (11), and the pull rope (42) passes around the two pulleys (44).

5. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 1, characterized in that: The damping assembly comprises a mounting opening (51), a mounting frame (52), a sliding rod (53) and a collar (54), wherein the mounting opening (51) is provided at one end of the frame (31), the mounting frame (52) is fixed to the side of the frame (31), a through opening is provided on the mounting frame (52), and the through opening is arranged opposite to the mounting opening (51), the sliding rod (53) is slidably arranged in the through opening, one end of the sliding rod (53) passes through the mounting opening (51) and is fixed with a damping leather head (56), the damping leather head (56) is in contact with the rack (32), the collar (54) is fixedly sleeved on one end of the sliding rod (53) away from the damping leather head (56), and the collar (54) and the mounting frame (52) are connected via a booster spring (55).

6. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 1, characterized in that: The control assembly includes two slideways (60), a fixed rod (61), a fixed rod (62), a control panel (63) and a control panel (64). The two slideways (60) are respectively opened at the two ends of the frame (31). The fixed rod (61) and the fixed rod (62) are respectively fixed at the two ends of the rack (32). The fixed rod (61) and the fixed rod (62) slide in the two slideways (60). The control panel (63) and the control panel (64) are respectively arranged at the two ends of the guide rod (37). The control panel (63) and the control panel (64) are both provided with inclined surfaces. The control panel (63) and the control panel (64) are both fixed to the inside of the outer frame (11) through a cross bar (65).

7. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 6, characterized in that: The ends of the fixing rod 1 (61) and the fixing rod 2 (62) are both hemispherical structures.

8. The primary and secondary fusion column mounted circuit breaker easy to maintain according to claim 1, characterized in that: The rack (32) is provided with teeth on both the upper and lower sides. A buffer assembly is provided inside the outer frame (11). The buffer assembly is used to provide buffering for the rack (32) when the rack (32) is reset. The buffer assembly includes a buffer oil box (71), a rotating shaft (73), an impeller (74) and a second gear (75). The buffer oil box (71) is arranged above the rack (32), and oil is accumulated inside the buffer oil box (71). The buffer oil box (71) is connected to the fixed frame (12) through the connecting frame (72). The rotating shaft (73) passes through the buffer oil box (71) and is rotatably connected to the buffer oil box (71). The impeller (74) is fixedly sleeved on one end of the rotating shaft (73) located inside the buffer oil box (71). The second gear (75) is fixedly sleeved on one end of the rotating shaft (73) located outside the buffer oil box (71). The second gear (75) is located directly above the rack (32).

9. The primary and secondary fused column mounted circuit breaker easy to maintain according to claim 8, characterized in that: The impeller (74) is immersed in the oil, and a gap is provided between the impeller (74) and the inner wall of the buffer oil.

10. The primary and secondary fused column mounted circuit breaker easy to maintain according to claim 6, characterized in that: The fixing rod 1 (61) is arranged opposite to the inclined surface of the control panel 1 (63), and the fixing rod 2 (62) is arranged opposite to the inclined surface of the control panel 2 (64).

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