Anti-misoperation pole-mounted circuit breaker

Abstract

The invention relates to an anti-misoperation pole-mounted circuit breaker, and relates to the technical field of power equipment, the anti-misoperation pole-mounted circuit breaker comprises a base provided with an opening and closing control rod, and further comprises a sealing shell with a sliding groove structure, a vibration sensing module, a magnetic potential barrier module and a locking execution module, the sliding groove structure is provided with a first arc-shaped sliding groove, a second arc-shaped sliding groove and the like, the first magnetic attraction block and the second magnetic attraction block form a magnetic potential barrier, the hammer rod is of a special structure, and the driving block is matched with the locking block. The technical effect of effectively preventing misoperation of the pole-mounted circuit breaker is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power equipment, in particular to a misoperation-preventing pole-mounted circuit breaker. BACKGROUND

[0002] In the power system, the pole-mounted circuit breaker is one of the key devices to ensure the safe and stable operation of the power grid. With the continuous development of the power industry, the performance and reliability requirements of the pole-mounted circuit breaker are becoming higher and higher. The pole-mounted circuit breaker is widely used in overhead distribution lines and can realize the opening and closing control of the circuit, timely cutting off the circuit in the event of a fault, and protecting the equipment and personnel safety. Its performance directly affects the quality and stability of power supply, and is of great significance to the power demand of industrial production, residents' life and other aspects. At the same time, with the continuous expansion of the power grid scale and the improvement of the intelligent level, the pole-mounted circuit breaker is also developing towards more efficient, reliable and intelligent direction.

[0003] In the related technology, mechanical locks, limiting devices or electrical interlocking means are usually used. The mechanical lock generally controls the operation of the circuit breaker through a key or a password, which can prevent unauthorized personnel from misoperation to a certain extent. The limiting device limits the movement range of the operating mechanism of the circuit breaker to avoid exceeding the normal closing and opening position. The electrical interlocking controls the operation of the circuit breaker by using electrical signals, and allows closing and opening operation only when certain conditions are met. These means have certain effect in actual application, and have been widely used for a long time. The mechanical lock is relatively simple to operate and has low cost; the limiting device has relatively intuitive structure and high reliability; the electrical interlocking can realize relatively complex logic control.

[0004] However, the mechanical lock is easily affected by key loss, password leakage and other problems, and may not be opened in time in an emergency. The limiting device can only prevent the excessive movement of the operating mechanism, and cannot effectively prevent misoperation caused by external vibration and other factors. The electrical interlocking relies on electrical signals and control systems, which may fail in the case of electromagnetic interference, power failure and other situations. Especially in outdoor environments, the pole-mounted circuit breaker is often affected by various vibrations, and the existing misoperation-preventing means cannot reliably prevent the closing and opening control rod from rotating under the action of these vibrations, thereby causing misoperation and affecting the safe and stable operation of the power grid. SUMMARY

[0005] The application aims to overcome the above technical problems and provides a misoperation-preventing pole-mounted circuit breaker.

[0006] A misoperation-preventing pole-mounted circuit breaker comprises a base, and a closing and opening control rod is arranged on the base, and further comprises: a sealing shell provided with a sliding groove structure; The vibration sensing module comprises: A reset spring is provided with a fixed block at one end and a mounting block at the other end, and the fixed block is connected with the sealed shell. The counterweight pendulum comprises a hammer rod and a hammer head, the hammer rod is connected with the mounting block and penetrates through the sliding groove structure. The magnetic potential barrier module comprises a first magnetic attraction block and a second magnetic attraction block arranged at the bottom of the sealed shell, and the magnetic attraction force of the first magnetic attraction block is greater than that of the second magnetic attraction block. The locking execution module comprises a driving block connected with the mounting block, a locking block matched with the driving block, and a locking rod arranged on the locking block.

[0007] By adopting the above technical scheme, modular integration and function decoupling are realized, which is convenient for independent design, optimization and maintenance; the three modules work cooperatively, so that the circuit breaker has the ability of intelligently identifying dangerous vibration and actively intervening; the foundation of full-automatic reset is laid; the pure mechanical structure has the advantages of anti-electromagnetic interference, resistance to harsh environment and long service life, and is suitable for outdoor power grid application.

[0008] Optionally, the sliding groove structure has a first arc-shaped sliding groove and a second arc-shaped sliding groove arranged side by side, the two ends of the first arc-shaped sliding groove are communicated with the second arc-shaped sliding groove through a communication groove; the first magnetic attraction block is used to provide a force for the counterweight pendulum to keep the neutral position, and the first magnetic attraction block and the second magnetic attraction block jointly act to form a magnetic potential barrier higher than the first arc-shaped sliding groove region in the second arc-shaped sliding groove region.

[0009] By adopting the above technical scheme, clear physical state partitions are created, two physically isolated state spaces of "normal standby area" and "abnormal triggering area" are set for the device, which is the structural basis for realizing bistable state working; a controllable state switching path is provided, so that the state switching is a controlled and directional process, randomness is avoided, and the reliability of triggering is improved.

[0010] Optionally, the second arc-shaped sliding groove is provided with a reset groove communicated with the first arc-shaped sliding groove, the reset groove is a straight slot, the inlet of the reset groove is smoothly connected with the second arc-shaped sliding groove, and the outlet of the reset groove is smoothly connected with the first arc-shaped sliding groove.

[0011] By adopting the above technical scheme, clear physical state partitions are created, a controllable state switching path is provided, reliable full-automatic reset is realized, the certainty of the reset action is ensured, modular integration and function decoupling are realized, intelligent anti-misoperation is cooperatively realized, the foundation of full-automatic reset is laid, and the pure mechanical type has high reliability.

[0012] Optionally, the number of the first magnetic attraction block is one, and the center point of the first magnetic attraction block is opposite to the midpoint of the arc of the first arc-shaped sliding groove; the number of the second magnetic attraction block is at least two, and the second magnetic attraction blocks are symmetrically distributed on the two sides below the second arc-shaped sliding groove.

[0013] By adopting the technical scheme, the distribution of the magnetic potential barrier can be optimized, the single strong magnet is concentrated in the middle of the first sliding groove to form a deep and narrow potential well, which is beneficial to the accurate positioning of the counterweight pendulum in a normal state, and the multiple weak magnets are symmetrically distributed on both sides of the second sliding groove to form a wide and wide potential barrier, which greatly increases the difficulty of accidental return and significantly enhances the reliability of the state locking, so that the pendulum is magnetically constrained in most of the movement area after entering the second sliding groove, which effectively prevents accidental resetting caused by temporary weakening of vibration and ensures the durability of the locking state.

[0014] Optionally, the hammer rod is composed of a coaxially arranged first rod body and a second rod body, the radius of the first rod body is smaller than the radius of the second rod body, and the second rod body is slidably inserted into the mounting block.

[0015] By adopting the technical scheme, the design of the thin rod first reduces the frictional resistance when moving through the communication groove and in the first arc-shaped sliding groove, making the trigger more sensitive; the thick rod ensures the stability of the movement in the second arc-shaped sliding groove and provides a structural basis for guiding into the narrower reset slot; the difference between the thick and thin rods is the "key" of the reset function, and the width of the reset slot is designed to only allow the thin rod to pass, while the thick rod is blocked by the second arc-shaped sliding groove main track, forcing the system to only choose the reset slot path under the action of the reset spring.

[0016] Optionally, the second rod body is connected to the mounting block by an internal spring.

[0017] By adopting the technical scheme, the internal spring can absorb part of the impact energy during the movement of the pendulum, reduce the hard impact on the mechanical structure, and improve the service life of the device; after the vibration stops and the centrifugal force weakens, the internal spring can automatically push the second rod body back, so that the first thin rod is repositioned in the guiding position, ensuring accurate positioning for smooth entry into the reset slot and ensuring reliable automatic resetting. At the same time, in cooperation with the hammer rod composed of coaxially arranged first and second rod bodies with different radii, the second rod body slidably inserted into the mounting block, and the sealing shell of the anti-misoperation column breaker, the vibration sensing module, the magnetic potential barrier module, the locking execution module and other structures, modular integration and function decoupling are realized, and intelligent anti-misoperation and full-automatic resetting are completed in cooperation, and have pure mechanical high reliability.

[0018] Optionally, an inclined surface is arranged on the driving block, and the locking block is matched with the driving block through the inclined surface.

[0019] By adopting the technical scheme, the slope of the driving block can efficiently convert the horizontal movement of the mounting block into the vertical movement of the locking block, realize 90-degree movement direction conversion and force amplification, and make the structure compact; and when the slope angle is small, the structure can generate a certain self-locking effect, that is, even if the driving block has a slight retreat, the locking block can also maintain the position under the reaction force of the lock rod and the lock hole, thereby enhancing the stability of the locking state.

[0020] Optionally, the sealing shell is made of a non-magnetic material, and a sealing ring is arranged on the surface of the sealing shell, and the locking rod penetrates through the sealing ring and extends into the locking hole arranged on the closing and opening control rod.

[0021] By adopting the technical scheme, abnormal leakage or short circuit of the magnetic force line is avoided, the distribution of the internal "magnetic potential barrier" is ensured to meet the design expectation and be long-term stable and unchanged, the precise mechanical and magnetic force system is completely isolated from the dust, moisture, salt mist and the like in the outside world, the problems of jamming and failure of the outdoor equipment caused by pollution and corrosion are fundamentally solved, and the environmental adaptability and long-term reliability of the device are improved.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Modular integration, function decoupling, three modules of vibration sensing, magnetic potential barrier and locking execution work cooperatively to realize an automatic process from vibration sensing to state judgment to safety locking, so that the circuit breaker has the ability to intelligently identify dangerous vibration and actively intervene, and is convenient for independent design, optimization and maintenance; 2. The different magnetic potential barriers are used to realize a reliable "bistable" mechanism, provide an accurate action threshold, effectively filter small vibrations, ensure reliable triggering in strong vibration, prevent the device from being reset when the vibration fluctuates, and ensure the firmness and reliability of the locking state; 3. Pure mechanical structure, not dependent on electronic sensors and power supply, has the advantages of anti-electromagnetic interference, resistance to harsh environment and long service life, and the sealing shell and the sealing ring isolate the internal system from the outside world, thereby improving the environmental adaptability and long-term reliability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the structure of the present application, mainly embodying the driving cavity and the control cavity; Figure 3 is a schematic diagram of the structure of the present application, mainly embodying the driving cavity and the control cavity; Figure 4 is Figure 3 is a sectional view of the structure of the present application along the A-A plane; Figure 5 is a schematic diagram of the structure of the present application, mainly embodying the driving block; Figure 6 is a structural diagram of the application, mainly embodying the locking groove.

[0024] BRIEF DESCRIPTION OF DRAWINGS: 1, base; 2, closing and opening control rod; 3, sealed shell; 4, vibration sensing module; 401, fixed block; 402, reset spring; 403, mounting block; 404, clamping block; 405, rotating shaft; 406, counterweight pendulum; 5, magnetic potential barrier module; 501, first magnetic attraction block; 502, second magnetic attraction block; 6, locking execution module; 601, driving block; 602, locking block; 603, locking rod; 604, unlocking spring; 7, hammer rod; 701, first section of rod body; 702, second section of rod body; 8, hammer head; 9, arc-shaped partition plate; 10, driving cavity; 11, control cavity; 12, driving groove; 13, sliding groove; 14, built-in spring; 15, plug-in groove; 16, rotating block; 17, first arc-shaped sliding groove; 18, second arc-shaped sliding groove; 19, communication groove; 20, reset groove; 21, control groove; 22, locking groove; 23, sealing ring; 24, locking hole; 25, arc-shaped block; 26, sliding block; 27, auxiliary box. DETAILED DESCRIPTION

[0025] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 6 , the application will be further described in detail.

[0026] A misoperation-preventing pole-mounted circuit breaker, referring to Figure 1 , Figure 2 , comprising a base 1, the base 1 is provided with a closing and opening control rod 2 and a circuit breaker assembly, the closing and opening control rod 2 is used for controlling the communication and disconnection of the circuit breaker assembly. It also includes a sealed shell 3 of overall sealing design, a vibration sensing module 4 arranged in the sealed shell 3, a magnetic potential barrier module 5 arranged in the sealed shell 3, and a locking execution module 6 arranged in the sealed shell 3. Among them, the vibration sensing module 4 is used to sense the vibration transmitted to the base 1 by the outside world; the locking execution module 6 is used to lock the closing and opening control rod 2 when the outside vibration reaches a certain degree, so as to avoid the rotation of the closing and opening control rod 2 under the action of the outside vibration; the magnetic potential barrier module 5 is used to sense the vibration of the vibration sensing module 4 and lock the state of the vibration sensing module 4, so as to increase the reliability of the locking effect.

[0027] Referring to Figure 2 , the sealed shell 3 is integrally formed by using engineering plastic material, and it is fixedly connected on the surface of the base 1 on the same side as the closing and opening control rod 2 by bolts. The sealed shell 3 is provided with an arc-shaped partition plate 9, wherein the arc-shaped partition plate 9 divides the inside of the sealed shell 3 into a driving cavity 10 located above and a control cavity 11 located below.

[0028] Referring to Figure 3 , Figure 4The driving cavity 10 is provided with a driving groove 12, the vibration sensing module 4 comprises a fixed block 401 rotatably connected to the bottom of the driving groove 12, the fixed block 401 is fixedly connected with a reset spring 402 on the side away from the bottom of the driving groove 12, and the end of the reset spring 402 away from the fixed block 401 is connected with a mounting block 403. In addition, the inner wall of the driving cavity 10 is provided with a sliding groove 13, the mounting block 403 is integrally connected with a clamping block 404, and the mounting block 403 is connected with the clamping block 404 extending into the sliding groove 13, so that the mounting block 403 can slide along the sliding groove 13.

[0029] The rotating shaft 405 is rotatably connected in the mounting block 403, and the reset spring 402 is fixedly connected with the rotating shaft 405, one end of the rotating shaft 405 extends out of the mounting block 403, and the part of the rotating shaft 405 outside the mounting block 403 is connected with a counterweight pendulum 406. In this way, when the counterweight pendulum 406 swings, the reset spring 402 and the mounting block 403 can normally operate, and the mounting block 403 or the fixed block 401 is prevented from being stuck.

[0030] The rotating shaft 405 is provided with a plug-in groove 15, and the counterweight pendulum 406 is inserted into the plug-in groove 15. The counterweight pendulum 406 comprises a hammer rod 7 and a hammer head 8. The hammer rod 7 is composed of a first segment rod body 701 and a second segment rod body 702 arranged coaxially, the radius of the first segment rod body 701 is smaller than that of the second segment rod body 702, and the second segment rod body 702 is slidably inserted into the plug-in groove 15.

[0031] One end of the second segment rod body 702 fixedly connected with an internal spring 14 in the plug-in groove 15, and the end of the internal spring 14 is fixedly connected with a rotating block 16 rotatably connected with the inner wall of the plug-in groove 15. When the hammer rod 7 swings, the internal spring 14 is deformed under the action of centrifugal force, so that the first segment rod body 701 and the second segment rod body 702 extend downward.

[0032] Referring to Figure 2 , Figure 4 The arc-shaped partition plate 9 is provided with a first arc-shaped sliding groove 17 and a second arc-shaped sliding groove 18 arranged side by side, and the arc-shaped partition plate 9 is provided with two communication grooves 19 between the first arc-shaped sliding groove 17 and the second arc-shaped sliding groove 18, one end of the communication groove 19 is communicated with the end of the first arc-shaped sliding groove 17, and the other end is connected with the end of the second arc-shaped sliding groove 18, so that the first arc-shaped sliding groove 17 and the second arc-shaped sliding groove 18 are communicated. The first segment rod body 701 is inserted into the control cavity 11 through the first arc-shaped sliding groove 17 or the second arc-shaped sliding groove 18, and the first segment rod body 701 is fixedly connected with the hammer head 8 at the end of the control cavity 11.

[0033] The size of the second segment rod body 702 matches the first arc-shaped sliding groove 17 and the second arc-shaped sliding groove 18, so that the first segment rod body 701 and the second segment rod body 702 can roll and slide along the first arc-shaped sliding groove 17 and the second arc-shaped sliding groove 18. When the counterweight hammer body starts to swing due to external vibration, it swings in the first arc-shaped sliding groove 17 first. When the external vibration increases and the swing amplitude of the counterweight hammer body increases, the counterweight hammer body swings into the second arc-shaped sliding groove 18 along the communication groove 19 and drives the reset spring 402 to deform and stretch. During the swing of the above-mentioned counterweight hammer body in the second arc-shaped sliding groove 18, the second end rod body of the counterweight hammer body is always in rolling abutment with the inner wall of the second arc-shaped sliding groove 18.

[0034] A reset groove 20 is formed at the midpoint of the second arc-shaped sliding groove 18 and is in communication with the midpoint of the first arc-shaped sliding groove 17. The reset groove 20 is a straight slot, and its size allows the first segment rod body 701 to pass through but not the second segment rod body 702. In addition, the connection between the reset groove 20 and the inner wall of the second arc-shaped sliding groove 18 is smoothly connected in a round corner, so as to reduce the friction loss between the inner wall of the second arc-shaped sliding groove 18 and the first segment rod body 701 or the second segment rod body 702. When the external vibration stops and the swing amplitude of the counterweight hammer body gradually decreases, the built-in spring 14 deforms and contracts, so that the first segment rod body 701 of the counterweight hammer body abuts against the inner wall of the second arc-shaped sliding groove 18 and passes through the reset groove 20 under the action of the reset spring 402 and slides into the first arc-shaped sliding groove 17.

[0035] Referring to Figure 2 , Figure 4 The magnetic potential barrier module 5 includes a first magnetic attraction block 501 and four second magnetic attraction blocks 502 fixedly connected to the bottom surface of the sealing shell 3 at the control cavity 11. The first magnetic attraction block 501 is arranged below the first arc-shaped sliding groove 17, and the four second magnetic attraction blocks 502 are arranged equidistantly and symmetrically along the second arc-shaped groove. In addition, the magnetic attraction force of the first magnetic attraction block 501 is greater than that of a single second magnetic attraction block 502.

[0036] The first magnetic attraction block 501 is in the shape of a long strip, and the axis thereof is located in the same plane as the midpoint of the first arc-shaped sliding groove 17. In addition, the first magnetic attraction block 501 forms a relatively deep but narrow magnetic potential well below the first arc-shaped sliding groove 17, so as to generate a continuous magnetic attraction force on the hammer head 8 and provide a force for keeping the hammer head 8 in the neutral position. The four second magnetic attraction blocks 502 cooperate to form a magnetic potential barrier below the second arc-shaped sliding groove 18, and the width of the magnetic potential barrier is greater than that of the magnetic potential barrier formed by the first magnetic attraction block, so that when the pendulum moves in most of the second arc-shaped sliding groove 18, it is always subjected to a continuous and comprehensive magnetic attraction force, thereby avoiding the swing of the hammer rod 7 into the communication groove 19 when swinging in the second arc-shaped sliding groove 18.

[0037] Referring to Figure 5 , Figure 6The locking execution module 6 comprises a driving block 601 fixedly connected to the mounting block 403 on the side away from the clamping block 404, and the sealing shell 3 is provided with a control groove 21 in the driving cavity 10, the driving block 601 extends into the control groove 21 and cooperates with the clamping block 404 to limit the position of the mounting block 403. The bottom of the control groove 21 is provided with a locking groove 22, and a locking block 602 is slidably connected in the locking groove 22, wherein the surfaces of the locking block 602 and the driving block 601 are provided with inclined surfaces that can cooperate with each other, and when the driving block 601 slides towards the locking block 602, the inclined surface of the driving block 601 cooperates with the inclined surface of the locking block 602 to push the locking block 602 to slide towards the bottom of the locking groove 22.

[0038] With reference to Figure 2 , Figure 5 , Figure 6 The locking block 602 is composed of an arc-shaped block 25 and a sliding block 26. The inclined surface is arranged on the side of the arc-shaped block 25 close to the driving block 601, and the sealing shell 3 is fixedly connected with an auxiliary box 27 on the side surface close to the closing and opening control rod 2, the inside of the auxiliary box 27 is communicated with the sealing shell 3, and the auxiliary box 27 and the sealing shell 3 jointly form an airtight chamber, and the sliding block 26 is slidably installed in the auxiliary box 27 and slides towards the closing and opening control rod 2 under the action of the driving block 601.

[0039] The surface of the auxiliary box 27 is provided with a through hole, and the inner wall of the through hole is fixedly connected with a sealing ring 23. In addition, the sliding block 26 is fixedly connected with a locking rod 603, and the locking rod 603 extends out of the outside after penetrating through the sealing ring 23. Meanwhile, the surface of the locking rod 603 is axially sleeved with an unlocking spring 604, one end of the unlocking spring 604 abuts against the locking block 602, and the other end abuts against the inner wall of the auxiliary box 27. The closing and opening control rod 2 is provided with a locking hole 24, and the locking rod 603 can extend into the locking hole 24 under the action of the driving block 601, and thereby limit the rotation of the closing and opening control rod 2.

[0040] The implementation principle of the embodiment is as follows: the anti-misoperation pole-mounted circuit breaker has the working principle based on the mechanical bistable mechanism controlled by the magnetic potential barrier, and realizes the intelligent control of the whole process from vibration sensing, state locking to automatic resetting. The specific process is as follows: When there is no abnormal vibration, the counterweight pendulum 406 is in a balanced position in the vibration sensing module 4. The hammer head 8 is attracted by the strong magnetism of the first magnetic attraction block 501 and is stably constrained in the middle region of the first arc-shaped sliding groove 17, forming a low potential well. At this time, the reset spring 402 is at the initial length, the mounting block 403 has no displacement, the driving block 601 is separated from the locking block 602, the locking rod 603 is separated from the locking hole 24 of the closing and opening control rod 2, and the circuit breaker can be normally operated.

[0041] When external vibration (such as line fault or construction impact) is transmitted to the base 1, the counterweight pendulum 406 obtains kinetic energy and starts to swing. If the vibration intensity exceeds the threshold, the pendulum swing amplitude increases, the hammer head 8 overcomes the magnetic force barrier of the first magnetic block 501, and the hammer rod 7 breaks into the second arc-shaped sliding groove 18 from the first arc-shaped sliding groove 17 through the communication groove 19. This process is accompanied by the sliding of the mounting block 403, and the reset spring 402 is stretched to store energy. After the hammer rod 7 enters the second arc-shaped sliding groove 18, the second section of the rod body 702 extends outward under the action of centrifugal force and keeps contact with the groove wall, and the hammer head 8 is jointly acted on by the second magnetic block 502 symmetrically distributed, forming a wide high magnetic force barrier, effectively preventing the pendulum from accidentally returning to the first arc-shaped sliding groove 17 due to vibration fluctuations.

[0042] The displacement of the mounting block 403 drives the movement of the driving block 601 connected thereto. The inclined surface of the driving block 601 engages with the inclined surface of the locking block 602, converting horizontal motion into vertical motion of the locking block 602, overcoming the resistance of the unlocking spring 604, and pushing the locking rod 603 to accurately insert into the locking hole 24 of the split-gate control rod 2. The self-locking effect of the inclined surface ensures the stability of the locking state, and even if the driving block 601 has a slight backoff, the locking rod 603 can still remain in the locked position, thereby physically blocking the rotation of the control rod and preventing misoperation.

[0043] When the vibration completely stops, the pendulum swing amplitude decays and the centrifugal force weakens. The built-in spring 14 releases the elastic force, pushing the second section of the rod body 702 back, so that the first section of the rod body 701 recontacts with the inner wall of the second arc-shaped sliding groove 18. At this time, the restoring force of the main reset spring 402 becomes dominant, pulling the mounting block 403 back. Since the width of the reset groove 20 only allows the first section of the thin rod to pass, the hammer rod 7 is forced to slide along the reset groove 20, a "shortcut", smoothly returning to the first arc-shaped sliding groove 17. The hammer head 8 is again attracted by the first magnetic block 501 and stabilized in the neutral position, and all components are reset, the locking rod 603 exits the locking hole 24, and the circuit breaker returns to the standby operation state.

[0044] During the entire process, the vibration sensing module 4 is responsible for energy collection and transmission, the magnetic force barrier module 5 realizes intelligent state recognition and retention through differential magnetic field, and the locking execution module 6 completes the safety action output. The sealed shell 3 and the non-magnetic material ensure the accuracy of the internal magnetic field and the environmental adaptability of the mechanical components. This purely mechanical design does not require external energy, and through ingenious physical structure coupling, it realizes high reliability, anti-interference and fully automated anti-misoperation function.

[0045] In summary, the embodiment solves the industry problem of circuit breaker misoperation in a vibrating environment through modularized cooperation and magnetic machine coupling design, significantly improving the safety and intelligent level of power grid equipment.

[0046] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A misoperation-proof pole-mounted circuit breaker comprising a base (1) provided with a close-open control lever (2), characterized in that, Also include: Sealed shell (3) is provided with chute structure; Vibration sensing module (4) includes: Reset spring (402) is provided with fixed block (401) at one end, the other end is provided with mounting block (403), the fixed block (401) is connected with the sealed shell (3); Counterweight pendulum (406) includes hammer rod (7) and hammer head (8), the hammer rod (7) is connected with the mounting block (403), and the hammer rod (7) is connected with the mounting block (403) and is provided with the chute structure; Magnetic potential barrier module (5) includes first magnetic block (501) and second magnetic block (502) arranged at the bottom of the sealed shell (3), the magnetic attraction of the first magnetic block (501) is greater than the magnetic attraction of the second magnetic block (502); Locking execution module (6) includes driving block (601) connected with the mounting block (403), locking block (602) matched with the driving block (601) and locking rod (603) arranged on the locking block (602).

2. The anti-misoperation pole-mounted circuit breaker according to claim 1, wherein: The chute structure has first arc-shaped chute (17) and second arc-shaped chute (18) arranged side by side, and the two ends of the first arc-shaped chute (17) are communicated with the second arc-shaped chute (18) through communication groove (19); The first magnetic block (501) is used to provide a force for the counterweight pendulum (406) to keep the neutral position, and the first magnetic block (501) and the second magnetic block (502) jointly act on the second arc-shaped chute (18) to form a magnetic potential barrier higher than the first arc-shaped chute (17) in the second arc-shaped chute (18) region.

3. The misoperation-proof pole-mounted circuit breaker according to claim 2, characterized in that: The second arc-shaped chute (18) is provided with reset groove (20) communicated with the first arc-shaped chute (17), and the reset groove (20) is a straight slot, the inlet of which is smoothly connected with the second arc-shaped chute (18), and the outlet of which is smoothly connected with the first arc-shaped chute (17).

4. The anti-misoperation pole-mounted circuit breaker according to claim 3, wherein: The number of the first magnetic block (501) is one, and the center point thereof is opposite to the midpoint of the first arc-shaped chute (17); The number of the second magnetic block (502) is at least two, and the second magnetic block (502) is symmetrically distributed on both sides below the second arc-shaped chute (18).

5. The misoperation-proof pole-mounted circuit breaker according to claim 1, characterized in that: The hammer rod (7) is composed of coaxially arranged first segment rod body (701) and second segment rod body (702), the radius of the first segment rod body (701) is smaller than the radius of the second segment rod body (702), and the second segment rod body (702) is slidably inserted into the mounting block (403).

6. The misoperation-proof pole-mounted circuit breaker according to claim 5, characterized in that: The second segment rod body (702) is connected with the mounting block (403) through the built-in spring (14).

7. The misoperation-proof pole-mounted circuit breaker of claim 1, wherein: The driving block (601) is provided with an inclined surface, and the locking block (602) is matched with the driving block (601) through the inclined surface.

8. The misoperation-proof pole-mounted circuit breaker of claim 1, wherein: The sealed shell (3) is made of non-magnetic material, and the surface thereof is provided with a sealing ring (23), and the locking rod (603) penetrates the sealing ring (23) and extends into the locking hole (24) arranged on the closing and opening control rod (2).

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