Secondary fuse set on-column breaker anti-mislock mechanism

Abstract

The application discloses a primary and secondary fusion complete set of on-column circuit breaker anti-mislock mechanism and belongs to the technical field of circuit breakers. The technical scheme is proposed for the problem that the existing products need multi-step operation when limiting and locking the operating rod, and comprises a circuit breaker main body, an energy storage operating rod arranged on the circuit breaker main body and a switching operation mechanism, wherein the switching operation mechanism comprises a switching operation assembly arranged on a switching main shaft. The angle adjustment of the wing plate in the switching operation assembly is realized under the single adjustment of the adjusting assembly, the wing plate is extruded and limited by the limiting assembly, the fixed seat is combined, the convenient and stable limiting of the switching operation assembly is realized, the operation steps are reduced, the processing efficiency is improved, the various structural assembly forms are simple, the manufacturing and production are facilitated, the cost is low, the hidden design is basically adopted, the damage is not easy, and the popularization and use of the product are facilitated.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, specifically to an anti-mislocking mechanism for a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] A primary and secondary integrated pole-mounted circuit breaker is a high-voltage electrical device that integrates multiple functions. It is mainly used in the power distribution network of the power system. The primary and secondary integrated pole-mounted circuit breaker is usually equipped with a manual operating lever for emergency tripping. When the equipment is shut down for maintenance or temporary safety measures to prevent misoperation are taken, the tripping lever needs to be mechanically locked to prevent staff from accidentally touching it.

[0003] A Chinese patent with application number 202510649703.5 discloses a pole-mounted circuit breaker with integrated primary and secondary protection against accidental activation, comprising a circuit breaker assembly, an operating component mounted on the circuit breaker assembly, and a fixed gear.

[0004] Although the technical solution in the aforementioned patent document achieves mechanical locking of the opening and closing levers, it still has the following drawbacks in actual operation:

[0005] Firstly, the locking operation of the opening and closing gate arm requires multiple steps, which is quite troublesome and affects operational efficiency. Secondly, the locking structure is relatively complex, which not only increases the manufacturing cost of the product, but also results in a high damage rate due to the exposed structure, which is not conducive to the promotion and use of the product. Summary of the Invention

[0006] To overcome the aforementioned deficiencies of the prior art, this invention provides a primary and secondary integrated pole-mounted circuit breaker anti-mislocking mechanism. By setting up an adjustment component, an auxiliary component, and a traction component, the angle of the wing plate in the opening and closing operation component can be adjusted by adjusting the adjustment component alone, causing it to press against the limiting component. Combined with the fixing base, this achieves convenient and stable limiting of the opening and closing operation component, reducing operation steps, improving processing efficiency, and the various structural components are simple in form, easy to manufacture, and low in cost. They are also basically hidden in design, not easy to be damaged, and easy to promote and use the product, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A primary and secondary integrated pole-mounted circuit breaker anti-mislocking mechanism includes a circuit breaker body, an energy storage operating rod and a tripping and closing operating mechanism disposed on the circuit breaker body. The tripping and closing operating mechanism includes a tripping and closing operating component mounted on the tripping and closing main shaft. A fixed seat is provided at the rear of the tripping and closing operating component on the outer wall of the circuit breaker body. A limiting component for limiting and locking is provided inside the tripping and closing operating component. A traction component, an adjusting component, an auxiliary component and a housing are also disposed on the top of the tripping and closing operating component. The adjusting component is used to drive the traction component and the auxiliary component to move and adjust. The housing is used for covering and protection. A cover plate for covering is also installed on the front housing wall of the tripping and closing operating component by screws. The opening and closing operation assembly includes a base plate fixedly connected to the opening and closing main shaft. Movable parts are installed on both sides of the top of the base plate, and a wing plate is movably connected to each movable part.

[0008] As a further embodiment of the present invention, the movable component includes a base integrally disposed on the top shell wall of the substrate, and a splicing seat is movably connected to the base via a pin. The splicing seat is fixed to the wing plate by bolts. An extension plate is integrally provided on the top and bottom shell walls of the substrate, and the extension plate together with the substrate constitutes the structural space.

[0009] As a further embodiment of the present invention, the limiting component includes a ring located in the structural space. Multiple limiting rods are integrally arranged on the rear shell wall of the ring along the circumferential direction. The rear end of the limiting rod penetrates the substrate and is inserted into the fixing seat for limiting. Each limiting rod is fitted with a reset spring. Fixed wedges are symmetrically arranged on the front shell wall of the ring. A movable wedge is slidably connected to the inclined surface of each fixed wedge. A contact member is fixedly connected to the top of the movable wedge. The contact element includes a bent rod fixedly connected to the moving wedge block, the top end of the bent rod passing through the extension plate above, and an integrally formed contact plate; The cover plate is located on the front side of the structural space and is fixedly connected to the corresponding extension plate by screws.

[0010] As a further embodiment of the present invention, the traction assembly includes a winding component and an adjusting component, wherein there are two adjusting components, which are respectively disposed on corresponding movable components, and the winding component is located between the two adjusting components and is movably connected to the upper extension plate. The adjusting component includes a box body fixedly connected to the front shell wall of the base by bolts. A slide rail is fixedly connected to the bottom inner wall of the box body, and a counterweight is slidably connected to the slide rail. A spring telescopic rod is provided on the right shell wall of the counterweight, and the other end of the spring telescopic rod is fixedly connected to the side inner wall of the box body. An external toothed ring is provided on the other side of the counterweight, located inside the box body. The external toothed ring is fixedly connected to the front end of the pin shaft, and a toothed chain is wound on the external toothed ring. One end of the toothed chain is fixedly connected to the counterweight. A connecting plate for auxiliary fixing is also provided between the top of the box body and the corresponding base. A side plate for sealing is installed on the front side of the box body by screws. The two toothed chains are connected by a traction cable.

[0011] As a further embodiment of the present invention, the winding component includes a hole formed in the extension plate above, a rotating shaft rotatably connected in the hole, a winding disc provided at the top of the rotating shaft, and a gear located on the rotating shaft below the winding disc. The winding disc includes a disc fixedly connected to the top of the rotating shaft. Two arc-shaped plates are symmetrically arranged on the top of the disc, and a pressure plate is threaded between the two arc-shaped plates.

[0012] As a further embodiment of the present invention, the adjustment assembly includes a guide groove plate fixedly connected to the top of the extension plate above, a slide plate slidably connected to the guide groove plate, a rack fixedly connected to the front shell wall of the slide plate, the rack meshing with a gear, a lead screw provided above the slide plate, a movable part threadedly connected to the lead screw, and the movable part being fixedly connected to the slide plate by bolts.

[0013] As a further embodiment of the present invention, the auxiliary component includes a fixed wedge block two disposed on the rear shell wall of the slide plate, a movable wedge block two slidably connected to the inclined surface of the fixed wedge block two, and a U-shaped rod fixedly connected to the rear shell wall of the movable wedge block two, with splicing parts installed at both ends of the U-shaped rod. The splicing component includes an integrated plate fixedly connected to the end of a U-shaped rod. Two sets of pin rods are symmetrically arranged on the front side of the integrated plate, which are respectively inserted into the base plate and the wing plate.

[0014] As a further embodiment of the present invention, the housing is fixedly connected to the top of the extension plate above by screws, and is used to cover the adjustment component and the auxiliary component. The two ends of the lead screw pass through the corresponding side walls of the housing and are equipped with adjustment handles.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the opening and closing operation component is in limit locking, the movement of the adjusting component first drives the auxiliary component to move backward, canceling the limit locking of the two wing plates in the opening and closing operation component. Then, the traction component adjusts the angle of the two wing plates, thereby reducing the length of the opening and closing operation component, reducing the probability of accidental operation. The reduced length of the opening and closing operation component increases the force required to perform the opening and closing operation, further reducing the success rate of the opening and closing operation caused by accidental operation. After the wing plate angle is adjusted, it will apply force to the limit component, thereby locking the opening and closing operation component with the fixed base, achieving the mechanical locking effect of the opening and closing operation component.

[0016] 2. When adjusting the adjustment component, only the lead screw needs to be adjusted. Through the mileage design, the auxiliary component and the traction component move sequentially, thereby realizing the deformation adjustment of the opening and closing operation component. This replaces the multi-step operation in the existing technology, reduces the burden on operators, and improves operating efficiency.

[0017] 3. The various structural components are simple in form, easy to manufacture and produce, and have low cost. They are also mostly designed to be hidden, making them less prone to damage and facilitating the promotion and use of the product. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the anti-mislocking mechanism for a primary and secondary integrated pole-mounted circuit breaker; Figure 2 for Figure 1 A schematic diagram of the opening and closing mechanism; Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4 for Figure 2 A schematic diagram of the axial side view structure; Figure 5 for Figure 2 A schematic diagram of the opening and closing operation components; Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point B; Figure 7 for Figure 2 A schematic diagram of the traction component structure; Figure 8 for Figure 2 A schematic diagram of the auxiliary component structure.

[0019] In the diagram: 1. Circuit breaker body; 2. Energy storage operating lever; 3. Opening and closing operating mechanism; 31. Opening and closing operating assembly; 311. Base plate; 312. Wing plate; 313. Moving part; 32. Fixed seat; 33. Limiting assembly; 331. Ring; 332. Limiting rod; 333. Fixed wedge block 1; 334. Moving wedge block 1; 335. Contact element; 34. Traction assembly; 341. Housing; 342. Slide rail; 343. Counterweight; 344. Spring extension / retraction. 345. Rod; 346. External gear ring; 347. Side plate; 348. Connecting plate; 349. Winding disc; 3401. Disc; 3402. Arc plate; 3403. Pressure plate; 341. Gear; 35. Adjustment component; 361. Guide groove plate; 362. Slide plate; 363. Rack; 37. Lead screw; 38. Auxiliary component; 39. Fixed wedge block II; 30. Moving wedge block II; 31. U-shaped rod; 32. Connecting piece; 33. Shell; 344. Cover plate. Detailed Implementation

[0020] Please see Figures 1-5 In this embodiment of the invention, the primary and secondary integrated pole-mounted circuit breaker anti-mislocking mechanism includes a circuit breaker body 1, and an energy storage operating rod 2 and a tripping and closing operating mechanism 3 disposed on the circuit breaker body 1, wherein the energy storage operating rod 2 is used to mechanically store energy for the closing operation of the tripping and closing operating mechanism 3. The opening and closing operation mechanism 3 includes an opening and closing operation component 31 installed on the opening and closing main shaft. A fixed seat 32 is provided behind the opening and closing operation component 31 on the outer wall of the circuit breaker body 1. The fixed seat 32 is fixedly connected to the outer wall of the circuit breaker body 1 by fastening bolts. Multiple limit holes are provided on the front shell wall of the fixed seat 32 along the circumferential direction. The opening and closing operation assembly 31 is internally provided with a limit component 33 for limit locking. The top of the opening and closing operation assembly 31 is also provided with a traction component 34, an adjustment component 35, an auxiliary component 36 and a housing 37. The adjustment component 35 is used to drive the traction component 34 and the auxiliary component 36 to adjust their movement. The housing 37 is used for covering and protection. A cover plate 38 for covering is also installed on the front housing wall of the opening and closing operation assembly 31 by screws. The movement of the adjustment component 35 is used to adjust the traction component 34 and the auxiliary component 36. By utilizing the mileage difference between the rack 353 on the slide plate 352 and the fixed wedge block 361 in the adjustment component 35, the misalignment adjustment of the traction component 34 and the auxiliary component 36 is achieved, thereby enabling flexible adjustment of the wing plate 312 in the opening and closing operation component 31. The opening and closing operation assembly 31 includes a base plate 311 fixedly connected to the opening and closing main shaft. Movable parts 313 are installed on both sides of the top of the base plate 311, and a wing plate 312 is movably connected to each movable part 313.

[0021] The movable component 313 includes a base integrally disposed on the top shell wall of the base plate 311, and a splicing seat is movably connected in the base by a pin. The splicing seat is fixed to the wing plate 312 by bolts. The folding adjustment of the wing plate 312 in the opening and closing operation assembly 31 is used to shorten the length of the adjustment structure. On the one hand, it reduces the probability of the staff coming into contact with it. On the other hand, the shortening of the length of the adjustment structure makes it require more force when adjusting the opening and closing main shaft, thereby reducing the probability of opening or closing the circuit due to accidental contact of the opening and closing operation assembly 31. An extension plate is integrally provided on the top and bottom shell walls of the substrate 311, and the extension plate together with the substrate 311 constitutes a structural space.

[0022] Please see Figures 2-4 In this embodiment of the invention, the limiting component 33 includes a ring 331 located in the structural space. Multiple limiting rods 332 are integrally provided on the rear shell wall of the ring 331 along the circumferential direction. The rear end of the limiting rod 332 penetrates the substrate 311 and is inserted into the fixing seat 32 for limiting, thereby realizing the mechanical locking of the opening and closing operation component 31. Each limit rod 332 is fitted with a return spring. Under the action of the return spring, the self-locking of the limit component 33 can be canceled. The front shell wall of the ring 331 is symmetrically provided with fixed wedge blocks 333. Each fixed wedge block 333 has a movable wedge block 334 slidably connected to its inclined surface. The top of the movable wedge block 334 is fixedly connected with a contact member 335. The inclined surface of the fixed wedge block 333 is provided with a T-shaped groove. The inclined surface of the movable wedge block 334 is integrally provided with a T-shaped slide bar. The T-shaped slide bar and the T-shaped groove are slidably connected, so that when the ring 331 moves to reset, it can synchronously drive the two contact members 335 to reset and adjust. The contact element 335 includes a bent rod fixedly connected to the moving wedge block 334. The top end of the bent rod passes through the upper extension plate and is integrally provided with a contact plate. The contact plate is provided to contact the angle-adjustable wing plate 312, thereby causing the moving wedge block 334 to move under force and press the fixed wedge block 333, thereby causing the ring 331 to drive the limiting rod 332 on it to move, achieving the limiting and locking effect. The cover plate 38 is located on the front side of the structural space and is fixedly connected to the corresponding extension plate by screws.

[0023] Please see Figure 5 and Figure 7 In this embodiment of the invention, the traction assembly 34 includes a winding component and an adjusting component. The adjusting component includes two components, which are respectively disposed on the corresponding movable component 313 to adjust the state of the two wing plates 312. The winding component is located between the two adjusting components and is movably connected to the upper extension plate. The adjusting components include a box 341 fixedly connected to the front shell wall of the base by bolts, a slide rail 342 fixedly connected to the bottom inner wall of the box 341, a counterweight 343 slidably connected to the slide rail 342, a spring telescopic rod 344 provided on the right shell wall of the counterweight 343, the other end of the spring telescopic rod 344 fixedly connected to the side inner wall of the box 341, an external toothed ring 345 located inside the box 341 on the other side of the counterweight 343, the external toothed ring 345 being fixedly connected to the front end of the pin shaft, and a toothed chain being wound on the external toothed ring 345, one end of the toothed chain being fixedly connected to the counterweight 343, a connecting plate 347 for auxiliary fixing being provided between the top of the box 341 and the corresponding base, a side plate 346 for sealing being installed on the front side of the box 341 by screws, and the two toothed chains being connected by a traction cable; When the two wing plates 312 in the opening and closing operation assembly 31 are unlocked, the reverse operation of the adjustment assembly 35 cancels the traction force applied to the toothed chains in the two adjustment components. Then, under the reset action of the spring telescopic rod 344, each toothed chain is dragged by the corresponding counterweight 343 to make the outer toothed ring 345 move in the opposite direction, thereby resetting the wing plate 312. The side wall of the wing plate 312 is also provided with a rubber pad to buffer the impact between it and the side end of the base plate 311 when it is reset.

[0024] The winding component includes a hole in the upper extension plate, a rotating shaft is rotatably connected in the hole, a winding disc 348 is provided at the top of the rotating shaft, and a gear 349 is provided below the winding disc 348 on the rotating shaft. The winding disc 348 includes a disc 3481 fixedly connected to the top of the rotating shaft. Two arc-shaped plates 3482 are symmetrically arranged on the top of the disc 3481. A pressure plate 3483 is threadedly connected between the two arc-shaped plates 3482. A gap is left between the two arc-shaped plates 3482 for the passage of the traction cable, while the pressure plate 3483 is configured to limit the traction cable between the two arc-shaped plates 3482, so as to prevent the traction cable from being misaligned and disengaged due to torque when the winding disc 348 rotates, thus ensuring the stability of the traction cable winding.

[0025] Please see Figure 5 , Figure 6 and Figure 8 In this embodiment of the invention, the adjustment component 35 includes a guide groove plate 351 fixedly connected to the top of the upper extension plate, a slide plate 352 slidably connected to the guide groove plate 351, a rack 353 fixedly connected to the front shell wall of the slide plate 352, the rack 353 meshing with the gear 349 for transmission, a lead screw 354 provided above the slide plate 352, a moving part threadedly connected to the lead screw 354, and the moving part being fixedly connected to the slide plate 352 by bolts; The rack 353 is positioned on the right side of the slide plate 352, thus creating a distance between it and the gear 349. When the slide plate 352 moves to the left, it first adjusts the auxiliary component 36 to remove it from the limit of each wing plate 312. Then, during continuous movement, the rack 353 and the gear 349 mesh and transmit power, thereby achieving the angle adjustment of each wing plate 312.

[0026] The auxiliary component 36 includes a fixed wedge block 361 disposed on the rear shell wall of the slide plate 352, a movable wedge block 362 slidably connected to the inclined surface of the fixed wedge block 361, and a U-shaped rod 363 fixedly connected to the rear shell wall of the movable wedge block 362, with splicing parts 364 installed at both ends of the U-shaped rod 363. A T-shaped guide bar is integrally provided on the inclined surface of the fixed wedge block 361, while a T-shaped guide groove is opened on the inclined surface of the movable wedge block 362. The T-shaped guide bar and the T-shaped guide groove are slidably connected, thereby ensuring the stability of the displacement movement of the U-shaped rod 363. The splicing component 364 includes an integrated plate fixedly connected to the end of the U-shaped rod 363. Two pin rod groups are symmetrically arranged on the front side of the integrated plate, which are respectively inserted into the base plate 311 and the wing plate 312. In the two pin groups, the pin group corresponding to the base plate 311 is longer than the pin group corresponding to the wing plate 312. Both sides of the base plate 311 are provided with through holes. These through holes are used for the long pin rod group in the splicing component 364. When the U-shaped rod 363 in the auxiliary component 36 drives the splicing component 364 to move backward, the cooperation between the pin rod group and the through hole group ensures the stability of the movement of the splicing component 364. The wing plate 312 is provided with a set of plug holes to correspond to the short pin rod group. When the splicing component 364 realizes the combination between the wing plate 312 and the base plate 311, it improves the overall stability of the opening and closing operation component 31 and facilitates subsequent emergency manual operation.

[0027] The housing 37 is fixedly connected to the top of the upper extension plate by screws, and is used to cover the adjustment assembly 35 and the auxiliary assembly 36. The two ends of the lead screw 354 pass through the corresponding side wall of the housing 37 and are equipped with adjustment handles. Multiple limiting holes are provided on both sides of the housing 37 along the circumferential direction to facilitate the insertion and limiting of the positioning pin after the adjustment handle is adjusted, and to further ensure the limiting and locking of the lead screw 354.

[0028] The working principle of this invention is as follows: when the circuit breaker body 1 is de-energized for maintenance, the opening and closing operation mechanism 3 is first opened to achieve power de-energization, and then the opening and closing operation mechanism 3 is limited and locked to prevent accidental contact. When the opening and closing operation mechanism 3 is in self-locking operation, the screw 354 in the adjusting assembly 35 is rotated by adjusting the handle of the screw 354. During the movement of the screw 354, the moving part on it drives the slide plate 352 to move to the left. When the slide plate 352 moves, the fixed wedge block 361 arranged on it moves synchronously with the rack 353. At this time, since the rack 353 is still a distance away from the gear 349, it will not drive the winding part to move. However, the sliding connection between the fixed wedge block 361 and the moving wedge block 362 causes the moving wedge block 362 to move backward. When the moving wedge block 362 moves, it drives the two splicing parts 364 to move backward synchronously through the U-shaped rod 363. During the backward movement, the splicing parts 364 cancel the insertion limit of the corresponding wing plate 312. After the splice 364 removes the insertion limit on the corresponding wing plate 312, the lead screw 354 drives the continuous movement of the slide plate 352, causing the rack 353 on it to contact the gear 349 on the winding part, which in turn causes the gear 349 to drive the rotating shaft to rotate. At this time, the winding disc 348 located on the rotating shaft also rotates, thereby winding the traction cable passing through the winding disc 348. After the traction cable is wound, it pulls the toothed chain in the adjustment parts on both sides. The movement of the toothed chain drives the corresponding outer toothed ring 345 to move on the one hand, and pulls the corresponding counterweight 343 to slide on the other hand, causing the corresponding spring telescopic rod 344 to extend. When the external gear ring 345 is in motion, the corresponding wing plate 312 is adjusted in angle via the pin. During the angle adjustment process, each wing plate 312 presses against the corresponding contact 335 in the limiting assembly 33, causing the corresponding moving wedge block 334 to move down. The moving wedge block 334 slides and connects with the corresponding fixed wedge block 333, thereby causing the ring 331 to move backward and compress the reset spring. Each limiting rod 332 on it is inserted into the fixed seat 32, thereby realizing the limiting lock of the opening and closing operation assembly 31. After the self-locking adjustment is completed, the positioning pin in the adjusting handle is inserted into the corresponding side wall of the housing 37 to further ensure the stability of the mechanical locking of the opening and closing operation assembly 31.

[0029] The above are merely preferred embodiments 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 anti-mislocking mechanism, comprising a circuit breaker body (1), and an energy storage operating rod (2) and a switching operation mechanism (3) disposed on the circuit breaker body (1), characterized in that: The opening and closing operation mechanism (3) includes an opening and closing operation component (31) installed on the opening and closing main shaft. A fixed seat (32) is provided at the rear of the opening and closing operation component (31) on the outer wall of the circuit breaker body (1). A limit component (33) for limit locking is provided inside the opening and closing operation component (31). A traction component (34), an adjustment component (35), an auxiliary component (36) and a cover (37) are also provided on the top of the opening and closing operation component (31). The adjustment component (35) is used to drive the traction component (34) and the auxiliary component (36) to adjust their movement. The cover (37) is used for covering and protection. A cover plate (38) for covering is also installed on the front side shell wall of the opening and closing operation component (31) by screws. The opening and closing operation assembly (31) includes a base plate (311) fixedly connected to the opening and closing main shaft. Movable parts (313) are installed on both sides of the top of the base plate (311), and a wing plate (312) is movably connected to each movable part (313).

2. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that, The movable part (313) includes a base integrally disposed on the top shell wall of the base plate (311), and a splicing seat is movably connected in the base by a pin. The splicing seat is fixed to the wing plate (312) by bolts. The substrate (311) has an extension plate integrally provided on the top and bottom shell walls, and the extension plate together with the substrate (311) constitutes a structural space.

3. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that, The limiting component (33) includes a ring (331) located in the structural space. Multiple limiting rods (332) are integrally arranged on the rear shell wall of the ring (331) along the circumferential direction. The rear end of the limiting rod (332) penetrates the base plate (311) and is inserted into the fixed seat (32) for limiting. Each limiting rod (332) is fitted with a reset spring. Fixed wedges (333) are symmetrically arranged on the front shell wall of the ring (331). Each fixed wedge (333) has a movable wedge (334) slidably connected to the inclined surface of each fixed wedge (333). A contact (335) is fixedly connected to the top of the movable wedge (334). The contact element (335) includes a bent rod fixedly connected to the moving wedge block (334), the top end of the bent rod passing through the extension plate above, and an integrally formed contact plate; The cover plate (38) is located on the front side of the structural space and is fixedly connected to the corresponding extension plate by screws.

4. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that, The traction assembly (34) includes a winding component and an adjusting component. The adjusting component includes two components, which are respectively disposed on corresponding movable components (313). The winding component is located between the two adjusting components and is movably connected to the upper extension plate. The adjusting component includes a box (341) fixedly connected to the front shell wall of the base by bolts. A slide rail (342) is fixedly connected to the bottom inner wall of the box (341). A counterweight (343) is slidably connected to the slide rail (342). A spring telescopic rod (344) is provided on the right shell wall of the counterweight (343). The other end of the spring telescopic rod (344) is fixedly connected to the side inner wall of the box (341). The other side of the counterweight (343) is provided with a section located on the box. (341) An internal external toothed ring (345) is fixedly connected to the front end of the pin shaft, and a toothed chain is wound on the external toothed ring (345). One end of the toothed chain is fixedly connected to the counterweight (343). A connecting plate (347) for auxiliary fixing is also provided between the top of the box body (341) and the corresponding base. A side plate (346) for sealing is installed on the front side of the box body (341) by screws. The two toothed chains are connected by a traction cable.

5. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that, The winding component includes a hole in the extension plate above, a rotating shaft is rotatably connected in the hole, a winding disc (348) is provided at the top of the rotating shaft, and a gear (349) is provided below the winding disc (348) on the rotating shaft. The winding disc (348) includes a disc (3481) fixedly connected to the top of the rotating shaft. Two arc-shaped plates (3482) are symmetrically arranged on the top of the disc (3481), and a pressure plate (3483) is threadedly connected between the two arc-shaped plates (3482).

6. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that, The adjustment assembly (35) includes a guide groove plate (351) fixedly connected to the top of the extension plate above. A slide plate (352) is slidably connected to the guide groove plate (351). A rack (353) is fixedly connected to the front shell wall of the slide plate (352). The rack (353) meshes with a gear (349) for transmission. A lead screw (354) is provided above the slide plate (352). A moving part is threadedly connected to the lead screw (354). The moving part is fixedly connected to the slide plate (352) by bolts.

7. The anti-mislocking mechanism for a primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that, The auxiliary component (36) includes a fixed wedge block two (361) disposed on the rear shell wall of the slide plate (352), a movable wedge block two (362) slidably connected to the inclined surface of the fixed wedge block two (361), and a U-shaped rod (363) fixedly connected to the rear shell wall of the movable wedge block two (362), with splicing parts (364) installed at both ends of the U-shaped rod (363). The splicing component (364) includes an integrated plate fixedly connected to the end of the U-shaped rod (363). Two sets of pins are symmetrically arranged on the front side of the integrated plate and are respectively inserted into the base plate (311) and the wing plate (312).

8. The anti-mislocking mechanism for the primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that, The housing (37) is fixedly connected to the top of the extension plate above by screws, and is used to cover the adjustment component (35) and the auxiliary component (36). The two ends of the lead screw (354) pass through the corresponding side walls of the housing (37) and are equipped with adjustment handles.

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