Primary and secondary fusion complete pole-mounted circuit breaker safe to operate
The pole-mounted circuit breaker with mechanical linkage design solves the problems of accidental closing and the failure to lock the closing port after opening in the existing technology, ensuring the correct operation sequence and improving safety and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG YANKEE ELECTRIC CO LTD
- Filing Date
- 2026-03-19
- Publication Date
- 2026-04-17
AI Technical Summary
Existing pole-mounted circuit breakers lack effective operation sequence interlocking, posing a risk of accidental closing. Furthermore, the closing port is not automatically locked after opening, leading to potential accidental closing accidents.
A safe, integrated primary and secondary pole-mounted circuit breaker was designed. It ensures that the circuit breaker is allowed to close only after the energy storage operation is completed through a mechanical linkage mechanism, and automatically blocks the closing port after the circuit breaker is opened to prevent misoperation.
It implements mandatory operation sequence interlocking to prevent accidental closing, improves operation and maintenance safety, and has a compact structure that is easy to maintain.
Smart Images
Figure CN121885459A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pole-mounted circuit breaker technology, specifically to a safe, integrated primary and secondary pole-mounted circuit breaker. Background Technology
[0002] Pole-mounted circuit breakers are critical equipment in power distribution networks, used for line protection, control, and isolation. To ensure reliable operation, the circuit breaker needs to complete an energy storage operation before closing, providing power for opening or closing. In actual line operation and maintenance, operators need to use an insulated operating rod to manually store energy, close, and open the pole-mounted circuit breaker.
[0003] Disadvantages of existing technology: The lack of effective operational sequence interlocking poses a risk of accidental closing: Existing pole-mounted circuit breakers, when operated manually, rely primarily on operator experience and procedures to ensure the "energy storage first, then closing" sequence. If personnel are negligent, inadequately trained, or operate hastily, they may attempt to close the circuit breaker without energy storage. Since the closing wrench may be unable to be pulled due to mechanical resistance, operators may misinterpret this as a jammed mechanism or even attempt to force it, thereby damaging the equipment or creating potential operational hazards. Current technology lacks a mandatory, physical sequence interlocking mechanism to prevent such human error.
[0004] After the circuit breaker is opened, the closing port is in an "operable" state, posing a risk of accidental closing during maintenance: After the equipment is opened, it is typically in a maintenance or isolation state. In existing technology, the opening operation itself does not change the accessibility of the closing port. This means that if someone (whether a maintenance personnel or someone else) unintentionally or intentionally inserts the operating lever into the closing port and pulls it, it could cause a serious accident such as closing the circuit under load or even with a fault. Existing devices fail to automatically physically isolate or lock the closing port after opening. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a safe, integrated primary and secondary pole-mounted circuit breaker, solving the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a safe, integrated primary and secondary pole-mounted circuit breaker, comprising a body, a first rotating shaft rotatably mounted on the front surface of the body, an energy storage wrench fixedly sleeved on the outer side of the first rotating shaft, a second rotating shaft rotatably mounted on the front surface of the body, a closing / opening wrench fixedly sleeved on the outer side of the second rotating shaft, an opening port on the left end of the closing / opening wrench, a closing port on the right end of the closing / opening wrench, and a storage box placed on the right end of the closing / opening wrench. A drive cylinder is fixedly connected to the right end of the storage box. A liquid bladder is fixedly connected to one side of the inner cavity of the drive cylinder. A T-shaped column is fixedly connected to the right end of the liquid bladder. One end of the T-shaped column extends into the storage box and is fixedly connected to a rectangular block. A baffle is fixedly connected to the left end of the rectangular block. One end of the baffle extends to the front of the closing port to block the front end of the closing port. Several second springs are fixedly connected to the left side of the inner wall of the storage box and behind the baffle. One end of each second spring is fixedly connected to the left end of the rectangular block.
[0007] Preferably, an energy storage indicator is provided on the front surface of the device body between the second rotating shaft and the first rotating shaft, and a closing / opening indicator is installed on the front surface of the device body at the right end of the first rotating shaft.
[0008] Preferably, a front drive box is installed on the front surface of the device body, in front of the opening / closing wrench, the energy storage indicator, and the opening / closing indicator. A first guide rail is fixedly connected to the back of the front drive box, below the energy storage wrench. A fourth spring is fixedly connected to the top of the inner cavity of the first guide rail. A first arc strip is fixedly connected to one end of the fourth spring. The right end of the first arc strip extends to the outside of the first guide rail and contacts the bottom of the energy storage wrench. A top groove is formed at the top of the first arc strip. A first tooth segment is fixedly connected inside the top groove. A first rotating rod is rotatably connected to the back of the inner cavity of the first guide rail via a bearing. A first one-way bearing is installed on the outside of the first rotating rod. A first transmission gear that mates with the first tooth segment is installed on the outside of the first one-way bearing.
[0009] Preferably, one end of the first rotating rod extends into the interior of the front drive housing. A lead screw is rotatably connected to the interior of the front drive housing via a bearing. Two mounting blocks are fixedly connected to the back of the front drive housing cavity. The lead screw passes through the two mounting blocks. A thread is provided on the outer side of the lead screw and between the two mounting blocks. A slider is threaded onto the outer side of the lead screw. A rack is fixedly connected to the left side of the slider. A threaded rod is rotatably connected to the front of the front drive housing cavity via a bearing. A second transmission gear that cooperates with the rack is fixedly sleeved on the outer side of the threaded rod.
[0010] Preferably, a transmission box is fixedly connected to the front surface of the front drive housing, a piston cylinder is fixedly connected to the front surface of the transmission box, one end of the threaded rod extends into the interior of the transmission box and is rotatably connected to the front end of the inner cavity of the transmission box via a bearing, a push block is mounted on the outer side of the threaded rod, the interior of the push block mates with the outer side of the threaded rod, a piston column is fixedly connected to the front end of the push block, the front end of the piston column extends into the interior of the piston cylinder, a hose is fixedly connected to the front end interface of the piston cylinder, a fixed tube is fixedly connected to the rear end interface of the drive cylinder, the front end of the fixed tube extends into the liquid bladder, and the rear end of the fixed tube is fixedly connected to one end of the hose.
[0011] Preferably, a second guide rail is fixedly connected to the back of the front drive housing and below the second rotating shaft. The second guide rail is located behind the opening and closing wrench. A third spring is fixedly connected to the top of the inner cavity of the second guide rail. A second arc strip is fixedly connected to the left end of the third spring. One end of the second arc strip extends to the left side of the second guide rail and is fixedly connected to an extension post. The front end of the extension post extends to below the opening and closing wrench. A second tooth segment is fixedly connected to the top inner cavity of the second arc strip. A second rotating rod is rotatably connected to the back of the inner cavity of the second guide rail via a bearing. A second one-way bearing is mounted on the outer side of the second rotating rod. A third transmission gear is installed on the outer side of the second one-way bearing and engages with the second tooth segment. A slot is provided at the top of the second arc strip, below the third transmission gear, and at the right end of the second tooth segment. One end of the second rotating rod extends into the interior of the front drive housing. A meshing second bevel gear is fixedly sleeved on the outer side of both the second rotating rod and the lead screw.
[0012] Preferably, the top of the opening and closing wrench is fixedly connected to the front surface of the body with a first fixing seat, and the back of the front drive box located to the right of the first fixing seat and the top of the storage box located to the right of the first fixing seat are both fixedly connected with a second fixing seat. The first fixing seat and the second fixing seat are fixedly connected by a bolt assembly.
[0013] Preferably, a drive box is fixedly connected to the back of the front drive box and located between the second guide rail and the first guide rail. The drive box is sleeved on the outside of the hose. A guide groove is provided on the back of the inner cavity of the drive box. A first spring is fixedly connected to one side of the inner cavity of the guide groove. A guide block is fixedly connected to the left end of the first spring. One end of the guide block extends into the inner cavity of the drive box. The outer side of the guide block is in contact with the surface of the wound hose.
[0014] After the energy storage operation is completed (which typically requires multiple pulls of the energy storage lever), its internal linkage mechanism (through components such as piston cylinders, liquid bladders, and baffles) automatically removes the baffle blocking the closing port, thereby exposing the closing port and allowing the closing operation to proceed. This effectively prevents workers from accidentally closing the circuit before energy storage is complete.
[0015] Enforcing a strict operating sequence enhances safety: Through the aforementioned mechanical linkage design, the device enforces a strict operating sequence: "Energy must be stored before closing the circuit." After the opening operation, the mechanism automatically re-blocks the closing port, preventing the closing operation again until the next energy storage is completed. This physically eliminates errors in the sequence due to negligence, thus improving operational safety.
[0016] Mechanical linkage, reliable and durable: The entire anti-misoperation protection function is achieved through a purely mechanical structure (gears, racks, lead screws, pistons, springs, etc.) linkage, without relying on electronic sensors or circuits. This design has strong anti-interference capabilities, is suitable for complex outdoor environments, and has a long lifespan and is easy to maintain.
[0017] Compact structure, detachable for maintenance: The protective structures such as the front drive box, storage box, and drive cylinder are fixed to the circuit breaker body via a first fixing seat, a second fixing seat, and a bolt assembly. This design allows the entire anti-misoperation module to be easily disassembled and installed as a whole from the circuit breaker body, facilitating transportation, replacement, or maintenance without affecting the circuit breaker body.
[0018] Triggered reset during circuit breaker tripping: When a circuit breaker tripping operation is performed (by pulling down the tripping lever at the tripping port), this action drives the liquid medium to flow back through another set of gear and rack mechanisms, causing the baffle to extend again and block the closing port. This means that after each tripping operation, the closing port will be automatically relocked and must be recharged to unlock, forming a complete operational cycle protection.
[0019] This invention provides a safe, integrated primary and secondary pole-mounted circuit breaker with the following advantages: 1. A mandatory mechanical interlock for the operation sequence prevents misoperation: A mechanical-hydraulic linkage device forcibly links energy storage and tripping operations with the physical position of the "baffle" blocking or removing the closing port, achieving a rigid logical sequence of "energy storage - unlocking - closing" and "tripping - locking." This fundamentally prevents attempts to close the circuit breaker without energy storage, greatly improving the safety of manual operation on site.
[0020] 2. Automatic reset and locking after tripping enhances maintenance safety: When a tripping operation is performed, the device automatically drives the baffle to reset, re-blocking the closing port. This design automatically prevents accidental closing when the equipment is in a tripping state, which usually corresponds to maintenance or fault isolation, providing an additional safety barrier for maintenance personnel.
[0021] 3. Safety logic is embedded in the operation process, without increasing operational complexity: Locking and unlocking actions are automatically triggered by the energy storage and tripping operations themselves, eliminating the need for operators to perform additional locking and unlocking steps. This ensures safety while maintaining smooth operation, avoiding potential human error due to cumbersome procedures.
[0022] 4. Modular design of the additional protection device facilitates installation and maintenance: The entire safety protection device, including the front drive box, storage box, and drive mechanism, is connected to the circuit breaker body via mounting brackets and bolt assemblies. This allows the device to be disassembled as a single independent module, facilitating its own maintenance or quick removal during major overhauls of the circuit breaker body, thus improving the overall maintainability and flexibility of the equipment.
[0023] 5. Adapts to mechanical displacement during operation and ensures long-term reliability: By setting up a drive box with a spring to store and release the hose connected to the hydraulic mechanism, it effectively adapts to the pipeline displacement caused by the rotation of the wrench, avoids the hose being pulled and damaged during repeated operation, and ensures that this mechanical interlock protection function can operate reliably for a long time. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the device structure of the present invention; Figure 3 This is a schematic diagram of the rear view structure of the component of the present invention; Figure 4 This is a cross-sectional view of the storage box and drive cylinder of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the rear view structure; Figure 6 This is a schematic diagram of the internal structure of the first guide rail of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A; Figure 8 This is a schematic diagram of the internal structure of the front drive box of the present invention; Figure 9 For the present invention Figure 8 A schematic diagram of the left end structure; Figure 10 For the present invention Figure 8 A schematic diagram of the right end structure; Figure 11 This is a schematic diagram of the internal structure of the second guide rail of the present invention; Figure 12 For the present invention Figure 11 Enlarged view of point B; Figure 13 This is a schematic diagram of the internal structure of the drive box of the present invention; Figure 14 This is a cross-sectional view of the piston cylinder and transmission box of the present invention.
[0025] In the diagram: 1. Body; 2. Opening / closing indicator needle; 3. First rotating shaft; 4. Energy storage wrench; 5. Second rotating shaft; 6. Opening / closing wrench; 7. Opening port; 8. Closing port; 9. Energy storage indicator needle; 10. Front drive box; 11. First guide rail; 12. First arc strip; 13. Top groove; 14. First tooth section; 15. First rotating rod; 16. First one-way bearing; 17. First transmission gear; 18. Mounting block; 19. Lead screw; 20. Slider; 21. Rack; 22. First bevel gear; 23. Threaded rod; 24. Second transmission gear; 25. Transmission box; 26. Piston cylinder; 27. Push... 28. Block; 29. Piston column; 30. Hose; 31. Drive box; 32. Guide block; 33. First spring; 34. Guide groove; 35. Fixed tube; 36. Storage box; 37. Drive cylinder; 38. Liquid bladder; 39. T-shaped column; 40. Rectangular block; 41. Baffle; 42. Second spring; 43. Second guide rail; 44. Second rotating rod; 45. Second one-way bearing; 46. Third transmission gear; 47. Second tooth segment; 48. Second arc bar; 49. Third spring; 50. Second bevel gear; 51. First fixed seat; 52. Second fixed seat; 53. Bolt assembly; 54. Fourth spring. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0027] Example 1 Please see Figures 1 to 12 and Figure 14 This invention provides a technical solution: a safe, integrated primary and secondary pole-mounted circuit breaker, comprising a body 1, a first rotating shaft 3 rotatably mounted on the front surface of the body 1, an energy storage wrench 4 fixedly sleeved on the outer side of the first rotating shaft 3, a second rotating shaft 5 rotatably mounted on the front surface of the body 1, a closing / opening wrench 6 fixedly sleeved on the outer side of the second rotating shaft 5, an opening port 7 at the left end of the closing / opening wrench 6, a closing port 8 at the right end of the closing / opening wrench 6, a storage box 35 placed at the right end of the closing / opening wrench 6, and a drive cylinder fixedly connected to the right end of the storage box 35. 36. A liquid bladder 37 is fixedly connected to one side of the inner cavity of the drive cylinder 36. A T-shaped post 38 is fixedly connected to the right end of the liquid bladder 37. One end of the T-shaped post 38 extends into the inside of the storage box 35 and is fixedly connected to a rectangular block 39. A baffle 40 is fixedly connected to the left end of the rectangular block 39. One end of the baffle 40 extends to the front of the closing port 8 to block the front end of the closing port 8. Several second springs 41 are fixedly connected to the left side of the inner wall of the storage box 35 and behind the baffle 40. One end of each second spring 41 is fixedly connected to the left end of the rectangular block 39.
[0028] Among them, an energy storage indicator needle 9 is provided on the front surface of the device body 1 and located between the second rotating shaft 5 and the first rotating shaft 3, and a closing and opening indicator needle 2 is installed on the front surface of the device body 1 and located at the right end of the first rotating shaft 3. The closing and opening indicator needle 2 indicates the closing and opening status, and the energy storage indicator needle 9 indicates the energy storage status and the non-energy storage status.
[0029] A front drive box 10 is installed on the front surface of the device body 1, in front of the opening / closing wrench 6, the energy storage indicator needle 9, the energy storage wrench 4, and the opening / closing indicator needle 2. A first guide rail 11 is fixedly connected to the back of the front drive box 10, below the energy storage wrench 4. A fourth spring 53 is fixedly connected to the top of the inner cavity of the first guide rail 11. A first arc strip 12 is fixedly connected to one end of the fourth spring 53. The right end of the first arc strip 12 extends to the outside of the first guide rail 11 and contacts the bottom of the energy storage wrench 4. A top groove 13 is opened on the top of the first arc strip 12, and a first tooth segment 14 is fixedly connected inside the top groove 13. The back of the inner cavity of the first guide rail 11 is rotatably connected to the first rotating rod 15 via a bearing. The outer side of the first rotating rod 15 is equipped with a first one-way bearing 16. The outer side of the first one-way bearing 16 is equipped with a first transmission gear 17 that meshes with the first tooth section 14. When the second rotating rod 43 drives the lead screw 19 to rotate, so that the lead screw 19 drives the first rotating rod 15 to rotate through the two first bevel gears 22, when the first rotating rod 15 drives the first one-way bearing 16 and the first transmission gear 17 to rotate, the first transmission gear 17 rotates freely because it is located in the empty space in the top groove 13.
[0030] One end of the first rotating rod 15 extends into the interior of the front drive housing 10. A lead screw 19 is rotatably connected to the interior of the front drive housing 10 via a bearing. Two mounting blocks 18 are fixedly connected to the back of the interior cavity of the front drive housing 10. The lead screw 19 passes through the two mounting blocks 18. A thread is provided on the outer side of the lead screw 19 and between the two mounting blocks 18. A slider 20 is threaded onto the outer side of the lead screw 19. A rack 21 is fixedly connected to the left side of the slider 20. A threaded rod 23 is rotatably connected to the front of the interior cavity of the front drive housing 10 via a bearing. A second transmission gear 24 that cooperates with the rack 21 is fixedly sleeved on the outer side of the threaded rod 23. By moving the rack 21 left and right, the second transmission gear 24 is driven to drive the threaded rod 23 to rotate forward or backward.
[0031] The front drive housing 10 is fixedly connected to the front surface of the transmission housing 25, and the front surface of the transmission housing 25 is fixedly connected to the piston cylinder 26. One end of the threaded rod 23 extends into the transmission housing 25 and is rotatably connected to the front end of the inner cavity of the transmission housing 25 through a bearing. A push block 27 is mounted on the outer side of the threaded rod 23, and the interior of the push block 27 cooperates with the outer side of the threaded rod 23. A piston column 28 is fixedly connected to the front end of the push block 27, and the front end of the piston column 28 extends into the piston cylinder 26. A hose 29 is fixedly connected to the front end interface of the piston cylinder 26. A fixed tube 34 is fixedly connected to the rear end interface of the drive cylinder 36, and the front end of the fixed tube 34 extends into the liquid bladder 37. The rear end of the fixed tube 34 is fixedly connected to one end of the hose 29. The liquid medium inside the piston cylinder 26 drives the liquid bladder 37 to expand or contract, thereby driving the T-shaped column 38, the rectangular block 39 and the baffle 40 to move left and right.
[0032] A second guide rail 42 is fixedly connected to the back of the front drive housing 10 and below the second pivot 5. The second guide rail 42 is located behind the clutch 6. A third spring 48 is fixedly connected to the top of the inner cavity of the second guide rail 42. A second arc strip 47 is fixedly connected to the left end of the third spring 48. One end of the second arc strip 47 extends to the left side of the second guide rail 42 and is fixedly connected to an extension post. The front end of the extension post extends to the bottom of the clutch 6. A second toothed section 46 is fixedly connected to the top inner cavity of the second arc strip 47. A second rotating rod 43 is rotatably connected to the back of the inner cavity of the second guide rail 42 via a bearing. A second one-way bearing 44 is mounted on the outer side of the second rotating rod 43. A third transmission gear 45 is installed on the outer side, and the third transmission gear 45 cooperates with the second tooth segment 46. A slot is opened at the top of the second arc bar 47, below the third transmission gear 45, and at the right end of the second tooth segment 46. One end of the second rotating rod 43 extends into the front drive box 10. The outer sides of the second rotating rod 43 and the lead screw 19 are fixedly fitted with meshing second bevel gears 49. The lead screw 19 is driven to rotate by the first rotating rod 15, so that when the lead screw 19 drives the second rotating rod 43 through the two second bevel gears 49 to drive the second one-way bearing 44 and the third transmission gear 45 to rotate, the third transmission gear 45 rotates freely because there is a slot below it.
[0033] The top of the wrench 6 and the front surface of the body 1 are both fixedly connected to a first fixing seat 50. The back of the front drive box 10 and the right side of the first fixing seat 50 and the top of the storage box 35 and the right side of the first fixing seat 50 are both fixedly connected to a second fixing seat 51. The first fixing seat 50 and the second fixing seat 51 are fixedly connected by a bolt assembly 52, and the bolt assembly 52 fixes the first fixing seat 50 and the second fixing seat 51.
[0034] Example 2 Please see Figures 1 to 14The present invention provides a technical solution: a drive box 30 is fixedly connected to the back of the front drive box 10 and located between the second guide rail 42 and the first guide rail 11. The drive box 30 is sleeved on the outside of the hose 29. A guide groove 33 is opened on the back of the inner cavity of the drive box 30. A first spring 32 is fixedly connected to one side of the inner cavity of the guide groove 33. A guide block 31 is fixedly connected to the left end of the first spring 32. One end of the guide block 31 extends into the inner cavity of the drive box 30. The outer side of the guide block 31 contacts the surface of the wound hose 29. The drive box 30 is used to store the hose 29.
[0035] In summary, this safe primary and secondary integrated pole-mounted circuit breaker, when used for closing operation, involves the worker first inserting one end of the insulating rod into the socket of one end of the energy storage wrench 4, then pulling the energy storage wrench 4 downwards. This causes the energy storage wrench 4 to push the first arc strip 12 into the first guide rail 11, compressing the fourth spring 53. This causes the first arc strip 12 to move the first toothed segment 14 downwards, thereby driving the first transmission gear 17 through the first toothed segment 14 to rotate the first one-way bearing 16 and the first rotating rod 15. The first rotating rod 15 then rotates through the two first bevel gears 2... 2. Drive the lead screw 19 to rotate, causing the lead screw 19 to drive the slider 20 and rack 21 to move a certain distance. When the energy storage wrench 4 is moved down to the designated position, no more force is applied. At this time, the internal structure of the device 1 drives the first rotating shaft 3 and the energy storage wrench 4 to reset and rotate to the designated position. At this time, the fourth spring 53 pushes the first arc bar 12 to move up. At this time, the first arc bar 12 drives the first tooth segment 14 to move up. However, the first tooth segment 14 cannot drive the first rotating rod 15 to reset and rotate through the first transmission gear 17 and the first one-way bearing 16. After the energy storage wrench 4 is turned five times, when it is turned for the sixth time, the first arc bar 12... The first tooth segment 14 is moved downwards, thereby driving the first transmission gear 17 through the first tooth segment 14 to drive the first one-way bearing 16 and the first rotating rod 15 to rotate. The first rotating rod 15 then drives the lead screw 19 to rotate through the two first bevel gears 22. The lead screw 19 then drives the slider 20 and rack 21 to move. The rack 21 then drives the second transmission gear 24 to rotate the threaded rod 23. The threaded rod 23 drives the push block 27 to move the piston rod 28 into the transmission box 25. When the energy storage wrench 4 is moved to the designated position, and the rack 21 moves to its maximum left stroke, the push block 27 and piston rod 28... 8. Move to the farthest stroke, so that the liquid medium inside the liquid bladder 37 is sucked into the piston cylinder 26 through the fixed tube 34 and the hose 29, so that the liquid bladder 37 contracts. At this time, the second spring 41 pushes the rectangular block 39 to drive the baffle 40 to move into the storage box 35, so that the rectangular block 39 pushes the T-shaped column 38 to move into the drive cylinder 36. After the sixth energy storage wrench 4 is pulled, the energy storage indicator needle 9 points to the energy storage mark. At this time, the worker can insert one end of the insulating rod into the closing port 8 and pull the closing / opening wrench 6 downwards from the closing port 8, so that the device 1 is closed and the closing / opening indicator needle 2 points to the closing mark. When a tripping operation is required, the worker inserts one end of the insulating rod into the tripping port 7 and pulls down the tripping wrench 6. This causes the bottom of the tripping wrench 6 to push the second arc strip 47 into the second guide rail 42 via the extension column, causing the second arc strip 47 to compress the third spring 48. At this time, the second arc strip 47 and the second toothed section 46 move, which can drive the third transmission gear 45 to rotate. The third transmission gear 45 can then drive the second rotating rod 43 to rotate via the second one-way bearing 44. The second rotating rod 43 can then drive the lead screw 19 to reset and rotate via the two second bevel gears 49. This causes the lead screw 19 to drive the slider 20 and rack 21 to reset and move. The rack 21 can then drive the second transmission gear 24 to reset and rotate the threaded rod 23. This causes the threaded rod 23 to drive the push block 27 and piston column 28 to move into the piston cylinder 26, causing the piston column 28 to push the liquid medium inside the piston cylinder 26. The substance enters the fixed tube 34 through the hose 29, and then enters the liquid bladder 37 through the fixed tube 34, causing the liquid bladder 37 to expand. The expanded liquid bladder 37 pushes the T-shaped column 38, the rectangular block 39, and the baffle 40 to move towards the closing port 8. The baffle 40 blocks the front end of the closing port 8. When the second tooth section 46 moves to the maximum stroke inside the second guide rail 42, the slider 20 and the rack 21 move to the maximum stroke at the right end of the lead screw 19. Then, the worker moves one end of the insulating rod out of the opening port 7. At this time, the second rotating shaft 5, driven by the internal structure of the device 1, drives the opening and closing wrench 6 to reset and rotate. At this time, the third spring 48 resets and pushes the second arc bar 47 and the second tooth section 46 to reset and move. At this time, the second tooth section 46 cannot reset and rotate through the third transmission gear 45, the second one-way bearing 44, and the second rotating rod 43 until the empty slot is below the third transmission gear 45. When the opening and closing wrench 6 rotates around the second rotating shaft 5, the drive cylinder 36 drives the fixed tube 34 to rotate, causing the fixed tube 34 to pull the hose 29 out of or into the drive box 30. At this time, the first spring 32 pushes the guide block 31 to move to the left, so that the guide block 31 can retract the hose 29. When the hose 29 is pulled out, the hose 29 pulls the guide block 31 to move to the right inside the guide groove 33, so that the guide block 31 can squeeze the first spring 32. When it is necessary to disassemble the limit protection structure, the fourth spring 53 can be removed from the inside of the first fixed seat 50 and the second fixed seat 51, the storage box 35 can be removed from the front of the opening and closing wrench 6, and then the front drive box 10, the storage box 35, the drive cylinder 36, the first guide rail 11 and the second guide rail 42 can be removed from the bottom of the device body 1. When it is necessary to install, the front drive box 10, the storage box 35, the drive cylinder 36, the second guide rail 42, the first guide rail 11 and the drive box 30 can be installed from the bottom of the device body 1 on the front surface of the device body 1. Then the storage box 35 can be placed at the right end of the opening and closing wrench 6, so that the baffle 40 is in front of the closing port 8. Then the first fixed seat 50 and the second fixed seat 51 can be fixed by the bolt assembly 52. The storage box 35 and the drive cylinder 36 can be installed at the right end of the opening and closing wrench 6, and the front drive box 10, the second guide rail 42, the first guide rail 11 and the drive box 30 can be installed on the front surface of the device body 1.
[0036] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of shaft-shaped parts are connected by bearings, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this invention is mainly used to protect mechanical devices, this invention will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned herein, and the external controller is a conventional known device.
[0037] 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 safe, integrated primary and secondary pole-mounted circuit breaker, comprising a body (1), characterized in that: A first rotating shaft (3) is rotatably mounted on the front surface of the device body (1). An energy storage wrench (4) is fixedly sleeved on the outer side of the first rotating shaft (3). A second rotating shaft (5) is rotatably mounted on the front surface of the device body (1). A closing wrench (6) is fixedly sleeved on the outer side of the second rotating shaft (5). A closing port (7) is opened at the left end of the closing wrench (6), and a closing port (8) is opened at the right end of the closing wrench (6). A storage box (35) is placed at the right end of the closing wrench (6). A drive cylinder (36) is fixedly connected to the right end of the storage box (35). One side of the inner cavity of the drive cylinder (36) is fixed. A liquid bladder (37) is connected to the right end of the liquid bladder (37), and a T-shaped column (38) is fixedly connected to the right end of the liquid bladder (37). One end of the T-shaped column (38) extends into the storage box (35) and is fixedly connected to a rectangular block (39). A baffle (40) is fixedly connected to the left end of the rectangular block (39). One end of the baffle (40) extends to the front of the closing port (8) to block the front end of the closing port (8). Several second springs (41) are fixedly connected to the left side of the inner wall of the storage box (35) and behind the baffle (40). One end of each of the second springs (41) is fixedly connected to the left end of the rectangular block (39).
2. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: An energy storage indicator (9) is provided on the front surface of the device (1) and between the second rotating shaft (5) and the first rotating shaft (3). A closing / opening indicator (2) is installed on the front surface of the device (1) and at the right end of the first rotating shaft (3).
3. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: A front drive box (10) is installed on the front surface of the device body (1) in front of the opening / closing wrench (6), the energy storage indicator (9), the energy storage wrench (4), and the opening / closing indicator (2). A first guide rail (11) is fixedly connected to the back of the front drive box (10) and below the energy storage wrench (4). A fourth spring (53) is fixedly connected to the top of the inner cavity of the first guide rail (11). A first arc strip (12) is fixedly connected to one end of the fourth spring (53). The right end of the first arc strip (12) extends to the first guide rail. The outer side of the rail (11) is in contact with the bottom of the energy storage wrench (4). The top of the first arc bar (12) is provided with a top groove (13). The top groove (13) is fixedly connected with a first tooth segment (14). The back of the inner cavity of the first guide rail (11) is rotatably connected to a first rotating rod (15) through a bearing. The outer side of the first rotating rod (15) is equipped with a first one-way bearing (16). The outer side of the first one-way bearing (16) is equipped with a first transmission gear (17) that cooperates with the first tooth segment (14).
4. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that: One end of the first rotating rod (15) extends into the interior of the front drive box (10). The front drive box (10) is rotatably connected to a lead screw (19) via a bearing. Two mounting blocks (18) are fixedly connected to the back of the interior cavity of the front drive box (10). The lead screw (19) passes through the two mounting blocks (18). A thread is provided on the outside of the lead screw (19) and between the two mounting blocks (18). A slider (20) is threaded on the outside of the lead screw (19). A rack (21) is fixedly connected to the left side of the slider (20). A threaded rod (23) is rotatably connected to the front of the interior cavity of the front drive box (10) via a bearing. A second transmission gear (24) that cooperates with the rack (21) is fixedly sleeved on the outside of the threaded rod (23).
5. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that: The front surface of the front drive box (10) is fixedly connected to the transmission box (25), and the front surface of the transmission box (25) is fixedly connected to the piston cylinder (26). One end of the threaded rod (23) extends into the transmission box (25) and is rotatably connected to the front end of the inner cavity of the transmission box (25) through a bearing. A push block (27) is mounted on the outside of the threaded rod (23). The inside of the push block (27) cooperates with the outside of the threaded rod (23). A piston column (28) is fixedly connected to the front end of the push block (27). The front end of the piston column (28) extends into the piston cylinder (26). A hose (29) is fixedly connected to the front end interface of the piston cylinder (26). A fixed tube (34) is fixedly connected to the rear end interface of the drive cylinder (36). The front end of the fixed tube (34) extends into the liquid bladder (37). The rear end of the fixed tube (34) is fixedly connected to one end of the hose (29).
6. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: A second guide rail (42) is fixedly connected to the back of the front drive housing (10) and below the second pivot (5). The second guide rail (42) is located behind the split wrench (6). A third spring (48) is fixedly connected to the top of the inner cavity of the second guide rail (42). A second arc strip (47) is fixedly connected to the left end of the third spring (48). One end of the second arc strip (47) extends to the left side of the second guide rail (42) and is fixedly connected to an extension post. The front end of the extension post extends to the bottom of the split wrench (6). A second toothed section (46) is fixedly connected to the top inner cavity of the second arc strip (47). The back of the inner cavity of the second guide rail (42) The part is rotatably connected to a second rotating rod (43) via a bearing. A second one-way bearing (44) is mounted on the outside of the second rotating rod (43). A third transmission gear (45) is mounted on the outside of the second one-way bearing (44). The third transmission gear (45) is engaged with the second tooth segment (46). A slot is provided at the top of the second arc bar (47), below the third transmission gear (45), and at the right end of the second tooth segment (46). One end of the second rotating rod (43) extends into the front drive box (10). A meshing second bevel gear (49) is fixedly sleeved on the outside of both the second rotating rod (43) and the lead screw (19).
7. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that: The top of the wrench (6) and the front surface of the body (1) are both fixedly connected to a first fixing seat (50). The back of the front drive box (10) and the right side of the first fixing seat (50) and the top of the storage box (35) and the right side of the first fixing seat (50) are both fixedly connected to a second fixing seat (51). The first fixing seat (50) and the second fixing seat (51) are fixedly connected by a bolt assembly (52).
8. The safe primary and secondary integrated pole-mounted circuit breaker according to claim 7, characterized in that: A drive box (30) is fixedly connected to the back of the front drive box (10) and between the second guide rail (42) and the first guide rail (11). The drive box (30) is sleeved on the outside of the hose (29). A guide groove (33) is provided on the back of the inner cavity of the drive box (30). A first spring (32) is fixedly connected to one side of the inner cavity of the guide groove (33). A guide block (31) is fixedly connected to the left end of the first spring (32). One end of the guide block (31) extends into the inner cavity of the drive box (30). The outer side of the guide block (31) is in contact with the surface of the wound hose (29).