Primary and secondary fusion complete column-mounted circuit breaker device

Abstract

The invention relates to the field of intelligent power grids, and particularly discloses a primary and secondary fusion complete column-mounted circuit breaker device, which comprises a mechanism box, a circuit breaker main body is mounted at the upper end of the mechanism box, and a current transformer matched with the circuit breaker main body is mounted on the rear side of the circuit breaker main body; an energy storage module and a switch module are arranged in the mechanism box, a control cavity is formed in the front side wall of the mechanism box, and an opening and closing rotating shaft capable of resetting automatically and a second energy storage rotating shaft are rotationally connected to the inner wall of the rear side of the control cavity. When the circuit breaker is used, the energy storage handle is linked with the closing switch, when the circuit breaker is normally used, energy storage is carried out, after energy storage is completed, the energy storage handle is continuously rotated, a closing part can be triggered to directly carry out closing operation, and compared with the prior art that energy storage is carried out by utilizing an insulating rod, and after energy storage is completed, closing is carried out by adjusting the position of the insulating rod, the scheme is more convenient, and the working efficiency is improved. And the misoperation of switching on before energy storage is completed is avoided, and the practical use is facilitated.

Description

Technical Field

[0001] This invention relates to the field of smart grids, and more particularly to a complete set of pole-mounted circuit breaker devices integrating primary and secondary circuits. Background Technology

[0002] In power distribution systems, integrated primary and secondary pole-mounted circuit breakers are key equipment for ensuring the safe and stable operation of the power grid and enabling rapid fault isolation and power restoration. Their ease of operation and reliability directly affect the efficiency and quality of power operation and maintenance. Traditionally, the maintenance procedure for integrated primary and secondary pole-mounted circuit breakers involves first using an insulating rod to operate the trip handle to trip the circuit breaker, then performing maintenance. After maintenance, the insulating rod is used to store energy in the energy storage handle. Once energy storage is complete, the position of the energy storage handle is adjusted and engaged with the closing handle to close the circuit breaker. In the closing operation, the operator needs to readjust the position of the insulating rod after energy storage, and then trigger the closing operation through the insulating rod. Since the position of the circuit breaker on the pole is relatively high, it is quite troublesome to align the hook and handle ring of the insulating rod each time. Therefore, this method undoubtedly greatly reduces the actual work efficiency and is inconvenient for the staff to operate. In addition, in the existing operation method, the energy storage status of the energy storage section needs to be judged by the operator by eye. However, because the energy storage section is located at a high position and far away from the operator, it is difficult to judge whether the energy storage is complete by observing the indicator signs. It is easy to find that the energy storage is not complete. If the closing operation is performed incorrectly at this time, the circuit breaker will not be able to close normally, and the energy storage operation will need to be restarted. The overall operation is extremely inconvenient. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a primary and secondary integrated pole-mounted circuit breaker device. In use, this circuit breaker links the energy storage handle with the closing switch. During normal operation, energy is stored. After storage is complete, rotating the energy storage handle triggers the closing mechanism to directly initiate the closing operation. Compared to existing technologies that use an insulating rod for energy storage and then adjust the position of the insulating rod to close the circuit, this solution is more convenient and avoids the erroneous operation of closing the circuit before energy storage is complete, thus facilitating practical use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A primary and secondary integrated pole-mounted circuit breaker device includes a mechanism box, on the upper end of which the circuit breaker body is installed, and on the rear side of the circuit breaker body is a current transformer that cooperates with it. The mechanism box is equipped with an energy storage module and a switch module. A control cavity is opened on the front side wall of the mechanism box. An automatically reset opening and closing shaft and a second energy storage shaft are rotatably connected to the rear inner wall of the control cavity. The second energy storage shaft works with the energy storage module to store energy and releases energy through the opening and closing shaft to realize the opening and closing of the circuit. The front end of the opening and closing shaft extends to the outside and is fixedly connected to the opening handle. The actuator is a first energy storage shaft that extends through the front sidewall of the control cavity. An energy storage handle is fixedly connected to the front end of the first energy storage shaft. The first energy storage shaft and the second energy storage shaft are connected by an elastic connection mechanism. During energy storage operation, the first energy storage shaft can drive the second energy storage shaft to rotate to achieve energy storage. After energy storage is completed, the second energy storage shaft is locked. At this time, the rotation of the first energy storage shaft can be achieved by a gas triggering mechanism to make the opening and closing shaft rotate clockwise to close the circuit. After closing the circuit, the opening shaft can be rotated counterclockwise to open the circuit.

[0005] Preferably, the mechanism housing contains an IGBT module, which works in conjunction with the switch module to protect the switch module.

[0006] Preferably, an aviation plug is installed on the front side of the mechanism box, and connecting seats are provided on both sides of the bottom part of the mechanism box.

[0007] Preferably, the elastic connection mechanism includes rotating plates fixedly connected to the upper and lower sides of the rear end of the first energy storage shaft, a connecting plate fixedly connected to the front end of the second energy storage shaft, a fixing ring fixedly connected to the front side of the connecting plate, fixing plates fixedly connected to the inner walls of the left and right sides of the fixing ring, arc-shaped piston cylinders fixedly connected to the two fixing plates, arc-shaped piston blocks slidably connected inside the two arc-shaped piston cylinders, one side of each arc-shaped piston block being elastically connected to the inner wall of the corresponding arc-shaped piston cylinder through a second spring, and the other side of each arc-shaped piston block being fixedly connected to the corresponding rotating plate through an arc-shaped connecting strip.

[0008] Preferably, the gas triggering mechanism includes a cylindrical piston cylinder fixedly connected to the upper end of the mechanism box, a cylindrical piston block slidably connected inside the cylindrical piston cylinder, the upper end of the cylindrical piston block being elastically connected to the inner top of the cylindrical piston cylinder via a third spring, a connecting rod fixedly connected to the lower end of the cylindrical piston block, the lower end of the connecting rod penetrating the inner top of the mechanism box and extending into the control cavity, a U-shaped frame fixedly connected to the lower end of the connecting rod, multiple meshing teeth being provided on the left side wall of the U-shaped frame, a first gear being provided on the outer side of the opening and closing rotating shaft, the first gear being connected to the opening and closing rotating shaft via a one-way bearing, and the first gear engaging with the multiple meshing teeth.

[0009] Preferably, a hollow plate is fixedly connected to the inner top of the control cavity, and the hollow plate is connected to the inner top space of the cylindrical piston cylinder through a connecting pipe; A connecting ring is fixedly connected to the lower end of the hollow plate. An annular groove is provided on the inner side of the connecting ring. A first energy storage shaft passes through the connecting ring. The first energy storage shaft is a hollow shaft and is connected to the annular groove through a first connecting port. The annular groove is connected to the hollow plate through a second connecting port. The first energy storage shaft is connected to the internal space of the corresponding arc-shaped piston cylinder through two connecting channels.

[0010] Preferably, it also includes a first indicating mechanism, which is rotatably connected to an adjusting shaft inside the mechanism box. The adjusting shaft is connected to the energy storage module, and the front end of the adjusting shaft extends to the outside and is fixedly connected to a pointer. An indicator plate that cooperates with the pointer is installed on the front of the mechanism box, and the indicator plate is divided into left and right indicating areas.

[0011] Preferably, it further includes a second indicating mechanism, the second indicating mechanism including a columnar mounting cavity opened in the top part of the mechanism box, a strip-shaped opening opened in the bottom of the mounting cavity, a drive shaft rotatably connected to the inner walls on the left and right sides of the mounting cavity, a marker post fixedly connected between the two drive shafts, the marker post being divided into upper and lower marking areas, and rubber scrapers fixedly connected to the inner walls on the front and rear sides of the strip-shaped opening.

[0012] Preferably, the mechanism housing has a sliding cavity that communicates with the control cavity. The sliding cavity has a lifting plate that can slide up and down. The lower end of the lifting plate is elastically connected to the inner bottom of the sliding cavity through multiple fourth springs. The inner bottom of the sliding cavity communicates with the columnar mounting cavity through two through holes. The lower end of the lifting plate is fixedly connected to two racks. A second gear is fixedly connected to each of the two drive shafts. The lower ends of the two racks extend into the columnar mounting cavity and mesh with the second gear.

[0013] Preferably, the mechanism box has an adjustment cavity inside, which is located to the left of the control cavity and the sliding cavity. The adjustment cavity has a sliding plate that can slide left and right. The left side of the sliding plate is elastically connected to the left inner wall of the adjustment cavity through multiple first springs. The right side wall of the adjustment cavity has two openings. The right side wall of the sliding plate has a wedge block with an upward inclined surface fixedly connected to it. The wedge block can pass through the opening below. The left side of the lifting plate has a limiting groove that cooperates with the wedge block. A stop rod is fixedly connected to the right side of the sliding plate. The right end of the stop rod passes through the upper opening. A cam that cooperates with the stop rod is fixedly connected to the opening and closing shaft.

[0014] Compared with the prior art, the beneficial effects of this invention are as follows: 1. Through the linkage mechanism between energy storage and closing operations, there is no need to readjust the position of the insulating rod to trigger the operation during closing. After maintenance is completed, simply continue to rotate the energy storage handle to complete energy storage, and subsequent operations will automatically connect to achieve closing. This avoids the tedious steps of aligning the insulating rod hook and handle ring in the traditional method, significantly improving the efficiency of power operation and maintenance and making it more convenient for staff to operate.

[0015] 2. Because the energy storage mechanism is linked to the closing operation, the circuit breaker will only close after energy storage is completed. This prevents the circuit breaker from closing before energy storage is complete, ensuring that it can close normally and avoiding the need to re-store energy and perform the operation.

[0016] 3. When the energy storage mechanism continues to rotate the energy storage handle after energy storage is completed, the operator needs to apply a significantly increased operating torque. This force feedback characteristic constitutes a mechanical energy storage status indication mechanism, allowing the operator to clearly determine that the energy storage process has ended through force perception, and then execute the subsequent closing operation. This design achieves passive indication of the energy storage status through the coupling of mechanical force feedback and operating logic.

[0017] 4. This patent features a second indicating mechanism. When energy storage completes closing and opening, the large, unobstructed indicator post is positioned at a direct viewing angle, clearly and intuitively displaying the closing and opening status. Operators no longer need to painstakingly observe distant indicator signs to judge the energy storage status. Furthermore, the use of rubber strips, combined with the rotation of the indicator post during closing and opening, enables self-cleaning, ensuring its marking effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the primary and secondary integrated pole-mounted circuit breaker device proposed in this invention; Figure 2 For this Figure 1 A bottom view; Figure 3 for Figure 1 A top-view plan view; Figure 4 for Figure 3 AA-direction cross-section diagram; Figure 5 for Figure 4 Enlarged view of point C; Figure 6 for Figure 3 Plan view of the BB section; Figure 7 for Figure 6 Enlarged view of point D; Figure 8 for Figure 6 Enlarged view of point E; Figure 9 This is a schematic diagram of the adjustment of the second indicator structure; Figure 10 for Figure 9 A schematic diagram of the rear side.

[0019] In the diagram: 1. Mechanism box; 2. Circuit breaker body; 3. Current transformer; 4. Aviation connector; 5. Identification plate; 6. Pointer; 7. Opening / closing shaft; 8. Opening handle; 9. First energy storage shaft; 10. Energy storage handle; 11. Columnar piston cylinder; 12. Connecting pipe; 13. Connecting seat; 14. Columnar mounting cavity; 15. Fixing plate; 16. Second gear; 17. Drive shaft; 18. Identification post; 19. Rubber scraper; 20. Control cavity; 21. Sliding cavity; 22. Adjusting shaft; 23. Cam; 24. Abutment rod; 25. Hollow plate; 26. Connecting ring; 27. Rotation. 28 Plate, 29 Fixed ring, 30 Adjusting cavity, 30 First spring, 31 Sliding plate, 32 Through port, 33 Wedge block, 34 Limiting groove, 35 Arc-shaped piston cylinder, 36 Arc-shaped piston block, 37 Arc-shaped connecting strip, 38 Connecting channel, 39 Second spring, 40 First gear, 41 Meshing teeth, 42 Connecting rod, 43 Third spring, 44 Columnar piston block, 45 Second energy storage shaft, 46 Connecting plate, 47 U-shaped frame, 48 Lifting plate, 49 Fourth spring, 50 Rack, 51 First connecting port, 52 Second connecting port. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] The primary and secondary integrated pole-mounted circuit breaker of this invention is a part of the high-voltage primary switchgear in smart distribution networks. It requires the coordinated use of power electronic devices and mechanical switches for control and drive. It is a key control and protection device in the distribution network, used to ensure normal power supply, power outage, and segmented switching of lines, and to cooperate with dispatching to achieve remote opening and closing.

[0022] Reference Figures 1-10 The integrated primary and secondary pole-mounted circuit breaker device includes a mechanism box 1. The circuit breaker body 2 is mounted on the upper part of the mechanism box 1. A current transformer 3 is mounted on the rear side of the circuit breaker body 2. The current transformer 3 uses high-precision, low-loss magnetic core material, which can accurately measure the current in the line and provide precise current signals for the protection device. It is a key component for realizing overcurrent and instantaneous trip protection functions. An aviation connector 4 is mounted on the front side of the mechanism box 1. This connector adopts a standardized design for easy and quick connection and disconnection, and also has good waterproof and dustproof performance, ensuring the reliability and safety of the electrical connection. Through the aviation connector 4, data interaction between the device and an external control system can be easily realized, such as remote monitoring and fault indication. Connecting seats 13 are provided on both sides of the bottom part of the mechanism box 1. These connecting seats are designed with standard mounting holes, which can be flexibly matched with various types of mounting brackets or crossarms, facilitating rapid on-site installation and adjustment, and greatly improving construction efficiency. The mechanism box 1 contains an energy storage module and a switch module. The energy storage module is based on existing technology. The mechanism box 1 also houses an IGBT module, which works in conjunction with the switch module to protect it. The IGBT module, a core component in power electronics, offers advantages such as high switching frequency, low conduction loss, and high withstand voltage. Working in tandem with the mechanical switch, it enables microsecond-level rapid fault current limiting, arc-free breaking, soft closing to suppress inrush current, reduces mechanical switch contact erosion, and improves breaking speed and equipment lifespan. It also supports precise control and intelligent distribution network protection functions. A control cavity 20 is located on the front wall of the mechanism box 1. A self-resetting opening / closing shaft 7 and a second energy storage shaft 45 are rotatably connected to the rear inner wall of the control cavity 20. The reset operation is achieved through a spring structure; the operator rotates the energy storage shaft 45 and then releases it (after release...). Automatic return), can realize energy storage. After the energy storage is completed, the circuit breaker is closed by rotating the opening and closing shaft 7 clockwise (the opening and closing shaft 7 will automatically return after being released), and the circuit breaker is opened by rotating the opening and closing shaft 7 counterclockwise (the opening and closing shaft 7 will automatically return after being released). This is the internal structure of the existing circuit breaker, which will not be described in detail here. The second energy storage shaft 45 works with the energy storage module to realize energy storage, and the energy is released through the opening and closing shaft 7 to realize closing and opening. The front end of the opening and closing shaft 7 extends to the outside and is fixedly connected to the opening handle 8. The system also includes an actuator, which is a first energy storage shaft 9 that runs through the front wall of the control cavity 20. The front end of the first energy storage shaft 9 is fixedly connected to an energy storage handle 10. The first energy storage shaft 9 and the second energy storage shaft 45 are connected by an elastic connection mechanism. The elastic connection mechanism includes a rotating plate 27 fixedly connected to the upper and lower sides of the rear end of the first energy storage shaft 9. The front end of the second energy storage shaft 45 is fixedly connected to a connecting plate 46. A fixing ring 28 is fixedly connected to the front side of the connecting plate 46. Fixing plates 15 are fixedly connected to the inner walls of the left and right sides of the fixing ring 28. Arc-shaped piston cylinders 35 are fixedly connected to the two fixing plates 15. Arc-shaped piston blocks 36 are slidably connected inside the two arc-shaped piston cylinders 35. One side of each arc-shaped piston block 36 is elastically connected to the inner wall of the corresponding arc-shaped piston cylinder 35 through a second spring 39. The other side of each arc-shaped piston block 36 is fixedly connected to the corresponding rotating plate 27 through an arc-shaped connecting strip 37. The second spring 39 here uses a spring with a large stiffness coefficient. When the second energy storage shaft 45 is not locked during normal energy storage, rotating the energy storage handle 10 can rotate the second energy storage shaft 45 using the elastic connection mechanism. At this time, the second spring 39 is only compressed to a very small extent and cannot trigger the subsequent gas triggering mechanism. However, after the energy storage mechanism has completed energy storage, the second energy storage shaft 45 is locked (due to the internal limitations of the existing energy storage module, this is existing technology). Therefore, rotating the energy storage handle 10 can make the first energy storage shaft 9 rotate relative to the second energy storage shaft 45, triggering the subsequent gas triggering mechanism. Furthermore, in actual engineering operations, given that the second spring 39 uses a large stiffness coefficient design, when the energy storage mechanism continues to rotate the energy storage handle 10 after energy storage has completed, the operator needs to apply a significantly increased operating torque. This force feedback characteristic constitutes a mechanical energy storage status indication mechanism, allowing the operator to clearly determine that the energy storage process has ended through force perception, and then perform the subsequent closing operation. This design achieves passive indication of energy storage status by coupling mechanical force feedback with operating logic.

[0023] Furthermore, the gas triggering mechanism includes a cylindrical piston cylinder 11 fixedly connected to the upper end of the mechanism box 1. A cylindrical piston block 44 is slidably connected inside the cylindrical piston cylinder 11. The upper end of the cylindrical piston block 44 is elastically connected to the inner top of the cylindrical piston cylinder 11 through a third spring 43. A connecting rod 42 is fixedly connected to the lower end of the cylindrical piston block 44. The lower end of the connecting rod 42 passes through the inner top of the mechanism box 1 and extends into the control cavity 20. A U-shaped frame 47 is fixedly connected to the lower end of the connecting rod 42. A vertical rod with a strip-shaped opening is also provided in the middle of the U-shaped frame 47. The second energy storage shaft 45 passes through the strip-shaped opening to prevent the cylindrical piston block 44 from shifting. Multiple meshing teeth 41 are provided on the left side wall of the U-shaped frame 47, and a first gear 40 is provided on the outer side of the opening and closing shaft 7. The first gear 40 is connected to the opening and closing shaft 7 through a one-way bearing. The first gear 40 cooperates with the multiple meshing teeth 41 in the initial state ( Figure 6In the state of (the circuit), through the setting of the one-way bearing, if multiple meshing teeth 41 move down, they will drive the first gear 40 to rotate, thereby driving the opening and closing shaft 7 to rotate clockwise. However, if multiple meshing teeth 41 move up, the rotation of the first gear 40 will not drive the opening and closing shaft 7 to rotate. A hollow plate 25 is fixedly connected to the top of the control cavity 20. The hollow plate 25 is connected to the top space of the columnar piston cylinder 11 through the connecting pipe 12. A connecting ring 26 is fixedly connected to the lower end of the hollow plate 25. An annular groove is opened on the inner side of the connecting ring 26. The first energy storage shaft 9 passes through the connecting ring. Rotary sealing gaskets are set on the front and rear sides of the passage. The first energy storage shaft 9 is a hollow shaft and is connected to the annular groove through the first connecting port 51. The annular groove is connected to the hollow plate 25 through the second connecting port 52. The first energy storage shaft 9 is connected to the corresponding arc-shaped piston cylinder 35 through two connecting channels 38 respectively. After the closing is completed, the opening can be achieved by rotating the opening shaft 7 counterclockwise. Specifically, when the first energy storage shaft 9 rotates relative to the second energy storage shaft 45 (energy storage complete), the two arc-shaped piston blocks 36 slide inside the corresponding arc-shaped piston cylinders 35, allowing the gas inside the arc-shaped piston cylinders 35 to pass sequentially through the connecting channel 38, the inside of the first energy storage shaft 9, the annular groove, and the hollow plate 25, and finally through the connecting pipe 12 into the top space inside the cylindrical piston cylinder 11. This causes the cylindrical piston block 44 to move downwards, which in turn causes the U-shaped frame 47 to move downwards. In the initial stage of the downward movement of the U-shaped frame 47, the meshing teeth 41 on it will not contact the first gear 40, but after moving downwards a certain distance, they will contact the first gear. 40, thereby using the first gear 40 to drive the opening and closing shaft 7 to rotate clockwise to achieve the closing operation. When the U-shaped frame 47 moves completely downward (closing is completed), the multiple meshing teeth 41 no longer contact the first gear 40. At this time, under the action of the self-restoring force of the opening and closing shaft 7, it will move back to the initial position. After releasing the first energy storage handle 10, under the action of the restoring force of the second spring 39 and the third spring 43, multiple structures are reset to the initial state. During the process of the U-shaped frame 47 driving the multiple meshing teeth 41 to move upward, the first gear 40 will not drive the opening and closing shaft 7 to rotate due to the one-way bearing.

[0024] The system also includes a first indicating mechanism, which is rotatably connected to an adjusting shaft 22 inside the mechanism housing 1. The adjusting shaft 22 is connected to the energy storage module, and its front end extends to the outside and is fixedly connected to a pointer 6. An indicator plate 5 that cooperates with the pointer 6 is installed on the front of the mechanism housing 1. The indicator plate 5 is divided into left and right indicating areas. When the opening and closing shaft 7 rotates clockwise, the closing is completed, and the energy of the energy storage mechanism is released. At the same time, it triggers the adjusting shaft 22 to rotate, causing the pointer 6 to rotate to point to the closing position (the opening and closing shaft 7 resets after being released). When the opening and closing shaft 7 rotates counterclockwise, the opening is completed, and it triggers the adjusting shaft 22 to rotate, causing the pointer 6 to rotate to point to the opening position (the opening and closing shaft 7 resets after being released). It should be noted that the opening operation does not require power storage and is actually an extension of the closing operation. This is existing technology and will not be described in detail.

[0025] The system also includes a second indicating mechanism, which comprises a columnar mounting cavity 14 located at the top of the mechanism housing. A strip-shaped opening is formed at the bottom of the mounting cavity 14. Drive shafts 17 are rotatably connected to the inner walls of both sides of the mounting cavity 14. A marker post 18 is fixedly connected between the two drive shafts 17. The marker post 18 is divided into upper and lower marking areas. Rubber scrapers 19 are fixedly connected to the inner walls of both the front and rear sides of the strip-shaped opening. The use of rubber scrapers 19 allows for self-cleaning of dust during the rotation of the marker post 18. Furthermore, the marker post 18 is relatively large and located directly below the circuit breaker, with no obstructions. To facilitate user observation of the opening and closing status, the mechanism box 1 is equipped with a sliding cavity 21 that communicates with the control cavity 20. The sliding cavity 21 is equipped with a lifting plate 48 that can slide up and down. The lower end of the lifting plate 48 is elastically connected to the inner bottom of the sliding cavity 21 through multiple fourth springs 49. The inner bottom of the sliding cavity 21 is connected to the columnar mounting cavity 14 through two through holes. The lower end of the lifting plate 48 is fixedly connected to two racks 50. The two drive shafts 17 are fixedly connected to second gears 16. The lower ends of the two racks 50 extend into the columnar mounting cavity 14 and mesh with the second gears 16. Furthermore, the mechanism box 1 has an adjustment cavity 29 inside, which is located to the left of the control cavity 20 and the sliding cavity 21. The adjustment cavity 29 is equipped with a sliding plate 31 that can slide left and right. The left side of the sliding plate 31 is elastically connected to the left inner wall of the adjustment cavity 29 through multiple first springs 30. The right side wall of the adjustment cavity 29 has two openings 32. The right side wall of the sliding plate 31 is fixedly connected with a wedge block 33 with an upward inclined surface. The wedge block 33 can pass through the lower opening 32. The left side of the lifting plate 48 has a limiting groove 34 that cooperates with the wedge block 33. The right side of the sliding plate 31 is fixedly connected with a stop rod 24. The right end of the stop rod 24 passes through the upper opening 32. The opening and closing shaft 7 is fixedly connected with a cam 23 that cooperates with the stop rod 24. In the open state, such as Figure 6 As shown, the tripping indicator is at the bottom at this time. During the closing operation, the U-shaped frame 47 will move down and then up. The downward movement of the U-shaped frame 47 will push the lifting plate 48 down. The downward movement of the lifting plate 48 will compress the fourth spring 49 and cause the two racks 50 to move down. The downward movement of the racks 50 will cause the second gear 16 to rotate. When the lifting plate 48 is completely lowered, the second gear 16 rotates 180°. At this time, the closing indicator is at the bottom. It should also be noted that the downward movement of the lifting plate 48 will use the inclined plane to push the wedge block 33 to move to the left, and cause the sliding plate 31 to move to the left, and compress the first spring 30. When the lifting plate 48 is completely lowered, the wedge block 33 corresponds to the limit slot 34. At this time, under the elastic action of the first spring 30, the wedge block 33 is inserted into the limit slot 34. Even if the U-shaped frame 47 moves back, the lifting plate 48 will not move back under the elastic action of the fourth spring 49. When the operator performs the opening operation, the insulating rod is used to rotate the opening / closing shaft 7 counterclockwise. At this time, the rotation of the cam 23 causes the abutment rod 24 to move to the left, thereby causing the sliding plate 31 and wedge block 33 to move to the left simultaneously, releasing the limit on the limit groove 34. Under the elastic action of the fourth spring 49, the lifting plate 48 moves back. Simultaneously, the rack 50, in conjunction with the second gear 16, moves the marker post 18 back, exposing the opening marker. It should be noted that... Figure 6 The cam 23 shown only triggers the abutment rod 24 to move to the left when rotated counterclockwise. In addition, the opening and closing shaft 7 and the second energy storage shaft 45 in this scheme have a large rotation range when operating, which is between 20° and 40°.

[0026] In the initial closed state, the primary and secondary integrated pole-mounted circuit breaker device is in the closed state. At this time, pointer 6 points to the closed position of the sign 5, the lower marking area (closed marking) of the marking post 18 is exposed, the lifting plate 48 is in the downward state, the wedge block 33 is inserted into the limiting groove 34 to restrict the lifting plate 48 from moving back, and multiple fourth springs 49 are in the compressed state.

[0027] When maintenance is required, the operator uses an insulating rod to rotate the opening / closing shaft 7 counterclockwise to perform the opening operation (the opening / closing shaft 7 automatically returns after being released). During the counterclockwise rotation of the opening / closing shaft 7, the cam 23 rotates accordingly, causing the abutment rod 24 to move to the left.

[0028] The abutment rod 24 moves to the left, causing the sliding plate 31 and the wedge block 33 to move to the left simultaneously. The wedge block 33 moves out of the limiting groove 34, releasing the limiting effect on the lifting plate 48.

[0029] Under the elastic action of the fourth spring 49, the lifting plate 48 moves back, simultaneously driving the two racks 50 to move upward. The upward movement of the racks 50 causes the second gear 16 to rotate, which in turn drives the drive shaft 17 to rotate. The rotation of the drive shaft 17 causes the marker post 18 to rotate 180°. At this time, the upper marking area (open marking) of the marker post 18 is exposed, making it convenient for staff to observe the open status. At the same time, the open operation triggers the adjustment shaft 22 to rotate, causing the pointer 6 to rotate to point to the open position of the marker plate 5 (the open / close shaft 7 resets after the hand is released).

[0030] The working principle of this invention is as follows: The staff performed maintenance operations on the circuit breaker device while it was in the open position.

[0031] After maintenance, the circuit breaker is closed. The operator rotates the energy storage handle 10 through the insulating rod. When the energy storage mechanism has not completed energy storage, the second energy storage shaft 45 is not locked. The second energy storage shaft 45 is rotated through the elastic connection mechanism. At this time, the second spring 39 is compressed to a small extent and does not trigger the subsequent gas triggering mechanism. After multiple operations, energy storage is completed.

[0032] After the energy storage mechanism completes energy storage, the second energy storage shaft 45 is locked. Continuing to rotate the energy storage handle 10 causes the first energy storage shaft 9 to rotate relative to the second energy storage shaft 45, triggering the gas triggering mechanism. The two arc-shaped piston blocks 36 slide inside their respective arc-shaped piston cylinders 35, sequentially passing the gas inside the arc-shaped piston cylinder 35 through the connecting channel 38, the inside of the first energy storage shaft 9, the annular groove, and the hollow plate 25, finally entering the top space inside the cylindrical piston cylinder 11 through the connecting pipe 12. This causes the cylindrical piston block 44 to move downwards, thereby causing the U-shaped frame 47 to move downwards.

[0033] In the initial stage of the downward movement of the U-shaped frame 47, the meshing teeth 41 on it do not contact the first gear 40; after moving down a certain distance, the meshing teeth 41 contact the first gear 40, and the first gear 40 drives the opening and closing shaft 7 to rotate clockwise to realize the closing operation (after being released, the opening and closing shaft 7 automatically moves back).

[0034] When the U-shaped frame 47 has fully lowered to complete the closing operation, the multiple meshing teeth 41 no longer contact the first gear 40, and the opening / closing shaft 7 returns to its initial position under its own restoring force (same as the existing operation method, i.e., apply a rotational force, rotate until it is fixed, and then release). Additionally, the lowering of the U-shaped frame 47 abuts the lowering of the lifting plate 48, which compresses the fourth spring 49 and causes the two racks 50 to move downwards, causing the second gear 16 to rotate 180°, and the marking post 18 to rotate so that the closing marking is located at the bottom. The lowering of the lifting plate 48 uses the inclined plane to abut the wedge block 33 to move to the left. When the lifting plate 48 has fully lowered, the wedge block 33 corresponds to the limiting groove 34. Under the elastic action of the first spring 30, the wedge block 33 engages in the limiting groove 34, restricting the return movement of the lifting plate 48.

[0035] The closing operation triggers the adjustment shaft 22 to rotate, causing the pointer 6 to rotate to the closing position pointing to the sign 5 (after releasing the pointer, the opening and closing shaft 7 resets), and the device returns to the initial closing state and can be put into normal use.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker device, characterized in that, include: Mechanism box (1), the upper end of which is equipped with a circuit breaker body (2), and the rear side of the circuit breaker body (2) is equipped with a current transformer (3) that cooperates with it. The mechanism box (1) is equipped with an energy storage module and a switch module. A control cavity (20) is opened on the front side wall of the mechanism box (1). An automatic reset opening and closing shaft (7) and a second energy storage shaft (45) are rotatably connected to the rear inner wall of the control cavity (20). The second energy storage shaft (45) works with the energy storage module to store energy and releases energy through the opening and closing shaft (7) to open and close the circuit. The front end of the opening and closing shaft (7) extends to the outside and is fixedly connected to the opening handle (8). The actuator is a first energy storage shaft (9) that runs through the front side wall of the control cavity (20). The front end of the first energy storage shaft (9) is fixedly connected to an energy storage handle (10). The first energy storage shaft (9) and the second energy storage shaft (45) are connected by an elastic connection mechanism. During the energy storage operation, the first energy storage shaft (9) can drive the second energy storage shaft (45) to rotate to achieve energy storage. After energy storage is completed, the second energy storage shaft (45) is locked. At this time, the rotation of the first energy storage shaft (9) can be achieved by a gas triggering mechanism, which can make the opening and closing shaft (7) rotate clockwise to close the circuit. After closing the circuit, the opening shaft (7) can be rotated counterclockwise to achieve opening the circuit.

2. The primary and secondary integrated pole-mounted circuit breaker device according to claim 1, characterized in that, The mechanism box (1) has an IGBT module built in. The IGBT module works with the switch module to protect the switch module.

3. The primary and secondary integrated pole-mounted circuit breaker device according to claim 1, characterized in that, An aviation plug (4) is installed on the front side of the mechanism box (1), and a connecting seat (13) is provided on both sides of the bottom part of the mechanism box (1).

4. The primary and secondary integrated pole-mounted circuit breaker device according to claim 1, characterized in that, The elastic connection mechanism includes a rotating plate (27) fixedly connected to the upper and lower sides of the rear end of the first energy storage shaft (9), a connecting plate (46) fixedly connected to the front end of the second energy storage shaft (45), a fixing ring (28) fixedly connected to the front side of the connecting plate (46), a fixing plate (15) fixedly connected to the inner walls of the left and right sides of the fixing ring (28), an arc-shaped piston cylinder (35) fixedly connected to the two fixing plates (15), an arc-shaped piston block (36) slidably connected inside the two arc-shaped piston cylinders (35), one side of each arc-shaped piston block (36) is elastically connected to the inner wall of the corresponding arc-shaped piston cylinder (35) through a second spring (39), and the other side of each arc-shaped piston block (36) is fixedly connected to the corresponding rotating plate (27) through an arc-shaped connecting strip (37).

5. The primary and secondary integrated pole-mounted circuit breaker device according to claim 4, characterized in that, The gas triggering mechanism includes a columnar piston cylinder (11) fixedly connected to the upper end of the mechanism box (1). A columnar piston block (44) is slidably connected inside the columnar piston cylinder (11). The upper end of the columnar piston block (44) is elastically connected to the inner top of the columnar piston cylinder (11) through a third spring (43). A connecting rod (42) is fixedly connected to the lower end of the columnar piston block (44). The lower end of the connecting rod (42) passes through the inner top of the mechanism box (1) and extends into the control cavity (20). A U-shaped frame (47) is fixedly connected to the lower end of the connecting rod (42). Multiple meshing teeth (41) are provided on the left side wall of the U-shaped frame (47). A first gear (40) is provided on the outer side of the opening and closing shaft (7). The first gear (40) is connected to the opening and closing shaft (7) through a one-way bearing. The first gear (40) cooperates with multiple meshing teeth (41).

6. The primary and secondary integrated pole-mounted circuit breaker device according to claim 5, characterized in that, A hollow plate (25) is fixedly connected to the inner top of the control cavity (20), and the hollow plate (25) is connected to the inner top space of the columnar piston cylinder (11) through a connecting pipe (12). The lower end of the hollow plate (25) is fixedly connected to a connecting ring (26). An annular groove is provided on the inner side of the connecting ring (26). The first energy storage shaft (9) passes through the connecting ring. The first energy storage shaft (9) is a hollow shaft and is connected to the annular groove through the first connecting port (51). The annular groove is connected to the hollow plate (25) through the second connecting port (52). The first energy storage shaft (9) is connected to the internal space of the corresponding arc-shaped piston cylinder (35) through two connecting channels (38).

7. The primary and secondary integrated pole-mounted circuit breaker device according to claim 1, characterized in that, It also includes a first indicating mechanism, which is rotatably connected to an adjusting shaft (22) inside the mechanism box (1). The adjusting shaft (22) is connected to the energy storage module. The front end of the adjusting shaft (22) extends to the outside and is fixedly connected to a pointer (6). A sign (5) that cooperates with the pointer (6) is installed on the front of the mechanism box (1). The sign (5) is divided into two indicating areas, left and right.

8. The primary and secondary integrated pole-mounted circuit breaker device according to claim 6, characterized in that, It also includes a second indicating mechanism, which includes a columnar mounting cavity (14) opened at the top of the mechanism box. A strip-shaped opening is provided at the bottom of the mounting cavity (14). A drive shaft (17) is rotatably connected to the inner walls on both the left and right sides of the mounting cavity (14). A marker post (18) is fixedly connected between the two drive shafts (17). The marker post (18) is divided into upper and lower marking areas. Rubber scrapers (19) are fixedly connected to the inner walls on both the front and rear sides of the strip-shaped opening.

9. The primary and secondary integrated pole-mounted circuit breaker device according to claim 8, characterized in that, The mechanism box (1) is provided with a sliding cavity (21) that communicates with the control cavity (20). The sliding cavity (21) is provided with a lifting plate (48) that can slide up and down. The lower end of the lifting plate (48) is elastically connected to the inner bottom of the sliding cavity (21) through multiple fourth springs (49). The inner bottom of the sliding cavity (21) is connected to the columnar mounting cavity (14) through two through holes. The lower end of the lifting plate (48) is fixedly connected with two racks (50). The two drive shafts (17) are fixedly connected with second gears (16). The lower ends of the two racks (50) extend into the columnar mounting cavity (14) and mesh with the second gears (16).

10. The primary and secondary integrated pole-mounted circuit breaker device according to claim 9, characterized in that, The mechanism box (1) has an adjustment cavity (29) inside. The adjustment cavity (29) is located to the left of the control cavity (20) and the sliding cavity (21). The adjustment cavity (29) is equipped with a sliding plate (31) that can slide left and right. The left side of the sliding plate (31) is elastically connected to the left inner wall of the adjustment cavity (29) through multiple first springs (30). The right side wall of the adjustment cavity (29) has two openings (32). The right side wall of the sliding plate (31) is fixedly connected with a wedge block (33) with its inclined surface facing upward. The wedge block (33) can pass through the opening (32) below. The left side of the lifting plate (48) has a limiting groove (34) that cooperates with the wedge block (33). A stop rod (24) is fixedly connected to the right side of the sliding plate (31). The right end of the stop rod (24) passes through the upper opening (32). A cam (23) that cooperates with the stop rod (24) is fixedly connected to the opening and closing shaft (7).

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