Breaker elastic operation device

Abstract

The invention relates to the technical field of circuit breakers, and discloses a circuit breaker elastic operation device which comprises an energy storage assembly, a switching-on assembly, a switching-off assembly and an output assembly. The energy storage assembly comprises a first driving assembly, an energy storage gear, an energy storage shaft, an energy storage crank arm and an energy storage spring, and the first driving assembly drives the energy storage gear to rotate and drives the energy storage spring to store energy through the energy storage shaft and the energy storage crank arm; the closing assembly comprises a second driving assembly, a limiting wheel, a closing buckle plate and a closing cam; the second driving assembly drives the energy storage spring to release energy through the limiting wheel and the closing buckle plate; the opening assembly comprises a third driving assembly, an opening buckle plate and an opening pawl. And the output assembly comprises a first output crank arm, the first output crank arm is provided with a first output roller and a second output roller which are respectively matched with the closing cam and the opening pawl to realize opening and closing, and the device has three states of energy storage, closing and opening. The circuit breaker elastic operation device provided by the invention can shorten the closing time, thereby ensuring the breaking performance of the circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to a spring-operated device for circuit breakers. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect current under normal circuit conditions and close, carry and disconnect current under abnormal circuit conditions within a specified time. In order to control the circuit breaker to close and open within a specified time, an operating mechanism is usually installed outside the circuit breaker. The operating mechanism of the circuit breaker is one of its core components, which is mainly divided into a permanent magnet mechanism and a spring-operated mechanism. The performance of the operating mechanism is an important indicator that determines the performance of the entire circuit breaker.

[0003] At present, the main technical solution for fast disconnection of distribution switch circuit breakers at home and abroad is permanent magnet mechanism. The advantage of permanent magnet mechanism is that it can realize fast disconnection, which is convenient for the grid feeder protection time difference to open multi-level protection. However, there are the following main problems in the operation process of permanent magnet mechanism: it cannot be closed manually, but can only be closed electrically. In the case of power failure, it cannot be closed in an emergency, which is not friendly to grassroots operation and maintenance personnel; the quality of energy storage capacitors is uneven, the charging module is prone to failure, highly dependent on electronic control, and the cost is expensive. The spring mechanism has the following advantages: stable and reliable; support remote electric energy storage, electric closing and opening; support manual opening and closing, convenient for grassroots power supply personnel to perform operation and maintenance operations, and cost advantages, more suitable for large-scale distribution network switch equipment. However, the traditional spring-operated opening time is 25-55ms, and the closing time is 30-70ms; while the opening time of the permanent magnet mechanism is less than 15ms, and the closing time is 20-40ms. The breaking performance of the traditional spring-operated mechanism is significantly weaker than that of the permanent magnet mechanism. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit breaker spring-operated device, which can shorten the closing time to shorten the arc generation and extinguishing process, thereby ensuring the breaking performance of the circuit breaker.

[0005] In order to achieve the above object, the present invention provides a circuit breaker spring-operated device, comprising:

[0006] A bracket, the bracket comprising a first plate and a second plate spaced apart in a front-to-rear direction;

[0007] An output component, the output component comprising an output part and a trip spring, the output part being arranged between the first plate and the second plate and used to control the opening and closing of the circuit breaker, the trip spring being connected to the output part and being able to provide a trip driving force to the output part;

[0008] An energy storage component, the energy storage component comprising an energy storage spring, the energy storage spring being arranged on the first plate, and being able to provide a closing driving force to the output part when the energy storage spring is in an elongated state;

[0009] A closing assembly, the closing assembly being arranged between the first plate and the second plate, and the closing assembly being capable of locking or releasing the energy storage spring;

[0010] The opening brake component is arranged between the first plate and the second plate, and can lock or release the opening brake spring.

[0011] An energy storage component, the energy storage component includes a first drive component, an energy storage gear, an energy storage shaft, an energy storage crank arm and an energy storage spring, the first drive component is arranged on the first plate, the energy storage gear is rotatably arranged between the first plate and the second plate, the power output end of the first drive component is connected to the energy storage gear, and is used to drive the energy storage gear to rotate, the energy storage shaft extends in the front-to-back direction and is coaxially fixed with the energy storage gear, the rear end of the energy storage shaft is rotatably arranged on the second plate, the front end of the energy storage shaft extends forward through the first plate, the front end of the energy storage shaft is connected to one end of the energy storage crank arm, the other end of the energy storage crank arm is connected to one end of the energy storage spring, and the other end of the energy storage spring is arranged on the first plate;

[0012] A closing assembly, the closing assembly comprising a second drive assembly, a limiting wheel, a closing plate, and a closing cam, the second drive assembly being arranged on the first plate, the closing plate being rotatably arranged between the first plate and the second plate, the power output end of the second drive assembly being connected to the closing plate, and being used to drive the closing plate to rotate, the limiting wheel being fixedly arranged on the energy storage shaft, a limiting block being arranged on the outer peripheral wall of the limiting wheel, the limiting block being used to abut against the closing plate, the closing cam being fixedly arranged on the energy storage shaft, and the closing cam comprising a wheel body and a convex portion smoothly connected to the wheel body;

[0013] A gate opening assembly, the gate opening assembly comprising a third drive assembly and a gate opening plate, the third drive assembly being arranged on the first plate, the gate opening plate being rotatably arranged between the first plate and the second plate, the power output end of the third drive assembly being connected to the gate opening plate and being used to drive the gate opening plate to rotate, and a gate opening latch being movably arranged on the gate opening plate;

[0014] An output assembly, the output assembly comprising a first output crank arm, an output portion and an opening spring, the first output crank arm being rotatably disposed between the first plate and the second plate, the first output crank arm having a first end and a second end, the first end and the second end being respectively provided with a first output roller and a second output roller, the first output roller being used to abut against the convex portion, the second output roller being used to abut against the opening latch, the output portion being connected to the first output crank arm, the output portion being used to control the opening and closing of the circuit breaker, the opening spring being connected to the first output crank arm through the output portion, and the opening spring being used to provide a force for the first output crank arm to rotate in the opening direction;

[0015] The circuit breaker spring-operated device has energy storage state, closing state and opening state;

[0016] When the circuit breaker spring-operated device is in the energy storage state, the other end of the energy storage crank arm is located above the energy storage shaft, the limit block abuts against the closing buckle plate, and the first output roller abuts against the wheel body;

[0017] When the circuit breaker spring-operated device is in a closed state, the first output roller is located outside the convex portion of the closing cam, and the second output roller abuts against the opening latch;

[0018] When the circuit breaker spring-operated device is in an opening state, the limit block does not abut against the closing buckle plate, and the first output roller abuts against the wheel body.

[0019] Further, the first driving assembly includes a driving motor, an input gear, and an input shaft, the driving motor is installed on the front end surface of the first plate, the power output end of the driving motor is connected to the input gear, the input gear is located between the first plate and the second plate, the input gear is meshed with the energy storage gear, and the input shaft is drivingly connected to the power output end of the driving motor, allowing the input shaft to be manually rotated to drive the input gear to rotate;

[0020] An assembly rod is connected between the first plate and the second plate, a pawl is rotatably provided on the assembly rod, a first torsion spring is sleeved on the assembly rod, one end of the first torsion spring is connected to the pawl, and the end of the pawl abuts against the tooth groove of the input gear, allowing the input gear to rotate in only one direction.

[0021] Furthermore, the bracket also includes a third plate and a fourth plate spaced apart in the front-to-back direction, the third plate and the fourth plate are both located in front of the first plate body, the second drive assembly includes a closing plate, a closing rod, a first plate return spring, a first transmission rod and a closing half shaft, the closing rod extends in the front-to-back direction and passes through the third plate and the fourth plate, the closing plate is arranged at the front end of the closing rod, the first plate return spring is wound around the outer circumference of the closing rod, and the two ends of the first plate return spring are respectively connected to the front end of the closing rod and the front end surface of the third plate, and the closing rod is provided with a first push plate return spring. A first transmission plate is provided, the first transmission plate is in a wedge shape with a thickness gradually increasing from the back to the front, the front end of the first transmission plate is in contact with the rear end surface of the third plate, the fourth plate is provided with a first clearance groove for the first transmission plate to pass through, the closing half shaft extends along the front-to-back direction and is rotatably arranged on the first plate and the second plate, the front end of the closing half shaft passes through the first plate forward, the first transmission rod is fixedly arranged at the front end of the closing half shaft, the end of the first transmission rod corresponds to the inclined surface of the first transmission plate, the closing half shaft is sleeved with a second torsion spring, and one end of the second torsion spring is connected to the first plate;

[0022] The closing plate has an abutting end and a first yielding end, the abutting end is used to abut against the limit block, a second yielding groove is opened on the closing half shaft, the second yielding groove is used for the first yielding end to pass through to allow the closing plate to rotate, a first reset spring is provided on the second plate, and one end of the reset spring is connected to the closing plate.

[0023] Furthermore, the second drive assembly also includes a closing drive, which is installed on the rear end surface of the second plate. The rear end of the closing half-shaft has an extension portion extending backward, and a trip plate is provided on the extension portion. The power output end of the closing drive can abut and push the trip plate.

[0024] Furthermore, the third driving assembly includes a gate opening plate, a gate opening rod, a second plate return spring, a second transmission rod and a gate opening half shaft, the gate opening rod extends in the front-to-back direction and passes through the third plate and the fourth plate, the gate opening plate is arranged at the front end of the gate opening rod, the second plate return spring is wound around the outer circumference of the gate opening rod, and the two ends of the second plate return spring are respectively connected to the front end of the gate opening rod and the front end surface of the third plate, the gate opening rod is provided with a second transmission plate, and the second transmission plate has a thickness gradually increasing from back to front. The second transmission plate is in the shape of a large wedge, the front end of the second transmission plate is in contact with the rear end surface of the third plate, the fourth plate is provided with a third clearance groove for the second transmission plate to pass through, the opening brake half shaft extends in the front-to-back direction and is rotatably arranged on the first plate and the second plate, the front end of the opening brake half shaft passes through the first plate forward, the second transmission rod is fixedly arranged at the front end of the opening brake half shaft, the end of the second transmission rod corresponds to the inclined surface of the second transmission plate, the opening brake half shaft is sleeved with a third torsion spring, and one end of the third torsion spring is connected to the first plate;

[0025] The opening brake plate has a second yielding end, and a fourth yielding groove is provided on the opening brake half shaft, and the fourth yielding groove is used for the second yielding end to pass through so as to allow the opening brake plate to rotate. A fourth torsion spring is sleeved on the rotating shaft of the opening brake plate, and one end of the fourth torsion spring is connected to the second plate;

[0026] A through slot is provided on the opening brake plate, and the opening brake latch has a hinged portion and an abutting portion. The hinged portion is rotatably arranged in the through slot, and the abutting portion is used to abut against the second output roller. A fifth torsion spring is provided between the opening brake plate and the opening brake latch.

[0027] Furthermore, the third drive assembly also includes a tripping drive, which is installed on the front end surface of the first plate, and a tripping arm is rotatably provided on the front end surface of the first plate. The power output end of the tripping drive can abut against one end of the tripping arm to push the tripping arm to rotate, and the other end of the tripping arm is transmission-connected to the second transmission rod.

[0028] Furthermore, the output assembly also includes an output shaft, which is rotatably arranged between the first plate and the second plate, the first output crank arm is fixedly arranged on the output shaft, a stop rod is detachably arranged on the closing half shaft, and a radially extending stop portion is arranged on the output shaft, and the stop rod and the stop portion can abut against each other to prevent the closing half shaft from rotating.

[0029] Furthermore, the circuit breaker spring-operated device is installed in the mechanism frame, the output part includes a second output crank arm, an output connecting rod, and a switch crank arm, the rear end of the output shaft passes through the second plate backward and is detachably fixedly connected to one end of the second output crank arm, one end of the output connecting rod is hinged to the other end of the second output crank arm, the other end of the output connecting rod is hinged to one end of the switch crank arm, the other end of the switch crank arm is connected to the opening spring, the other end of the opening spring is connected to the mechanism frame, and the opening spring is in an elongated state.

[0030] Furthermore, the circuit breaker spring-operated device also includes an indication component, which includes an indication switch and a first indication plate. The first output crank arm also has a third end, and the third end is transmission-connected to the indication switch and the first indication plate.

[0031] Furthermore, the indication assembly also includes a second indication plate, a first indication rod and a third transmission rod, the first indication rod extends in the front-to-back direction, the rear end of the first indication rod is rotatably disposed on the second plate, the front end of the first indication rod passes through the first plate forward and is detachably connected to the second indication plate, one end of the third transmission rod is installed on the first indication rod, the other end of the third transmission rod abuts against the upper end of the energy storage spring, and a sixth torsion spring is sleeved on the first indication rod, and one end of the sixth torsion spring is connected to the first plate.

[0032] Compared with the prior art, the circuit breaker spring-operated device of the embodiment of the present invention has the following beneficial effects: the first driving assembly drives the energy storage gear to rotate, drives the energy storage shaft to rotate, so that the energy storage crank arm rotates to stretch the energy storage spring to store energy, and the limit wheel also rotates synchronously until the energy storage spring is stretched to the longest, the limit block cooperates with the closing buckle plate to abut, and at this time, the circuit breaker spring-operated device is in an energy storage state;

[0033] The second driving assembly drives the closing button plate to rotate, the limit block is separated from the abutment of the closing button plate, and the elastic potential energy of the energy storage spring is converted into the kinetic energy of the energy storage shaft rotation, so that the energy storage shaft rotates, driving the closing cam to rotate, and the first output roller originally abutting against the wheel body of the closing cam abuts against the convex part of the closing cam during the rotation of the closing cam, until the first output crank arm rotates until the second output roller abuts against the opening latch, at this time, the first output roller is located on the outer side of the convex part, and the wheel part of the closing cam is on the axis connecting the first output roller and the energy storage shaft, and the circuit breaker spring operating device is in the closing state;

[0034] The third driving assembly drives the opening plate to rotate, driving the opening latch to move, the second output roller is separated from the abutment of the opening latch, and the first output crank arm rotates under the elastic force of the opening spring until the first output roller abuts against the wheel body, and the circuit breaker spring-operated device is in the opening state;

[0035] The potential energy of the energy storage spring can greatly shorten the closing time and the process of arc generation and extinguishing, thereby ensuring the breaking performance of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 1 is a schematic diagram of the overall structure of a circuit breaker quick spring operating device according to an embodiment of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the circuit breaker quick spring operating device according to an embodiment of the present invention after removing the output part and the opening spring;

[0038] Figure 3 It is a schematic structural diagram of another angle of the circuit breaker quick spring operating device of the embodiment of the present invention after removing the output part and the opening spring;

[0039] Figure 4 It is a schematic diagram of the structure of the circuit breaker fast spring operating device according to an embodiment of the present invention after removing the output part, the opening spring, the second plate, and the closing drive member;

[0040] Figure 5 2 is a schematic structural diagram of an energy storage component of a circuit breaker quick spring operating device according to an embodiment of the present invention;

[0041] Figure 6 2 is a schematic structural diagram of a closing assembly of a circuit breaker fast spring-operated device according to an embodiment of the present invention;

[0042] Figure 7 2 is a schematic structural diagram of a closing assembly of a circuit breaker fast spring-operating device according to an embodiment of the present invention from another angle;

[0043] Figure 8 2 is a schematic structural diagram of a closing button plate of a circuit breaker fast spring operating device according to an embodiment of the present invention;

[0044] Fig. 9 2 is a schematic structural diagram of a trip assembly of a circuit breaker quick spring-operated device according to an embodiment of the present invention;

[0045] Fig.10 2 is a schematic structural diagram of a trip assembly of a circuit breaker quick spring operating device according to an embodiment of the present invention from another angle;

[0046] Fig.11 It is a structural schematic diagram of a tripping plate, a tripping latch, and a fifth torsion spring of a circuit breaker quick spring operating device according to an embodiment of the present invention;

[0047] Fig.12 2 is a schematic diagram of the structure of an output component of a circuit breaker fast spring-operating device according to an embodiment of the present invention;

[0048] Fig.131. It is a schematic diagram of the connection relationship between the closing component, the opening component and the output component of the circuit breaker fast spring operation device according to an embodiment of the present invention;

[0049] Fig.14 It is a schematic structural diagram of another angle of the circuit breaker quick spring operating device of the embodiment of the present invention after removing the output part and the opening spring;

[0050] Fig.15 is a schematic diagram of a circuit breaker quick spring operating device in an energy storage state according to an embodiment of the present invention;

[0051] Fig.16 is a schematic diagram of a circuit breaker fast spring operating device in a closed state according to an embodiment of the present invention;

[0052] Fig.17 is a schematic diagram of a circuit breaker fast spring operating device in an open state according to an embodiment of the present invention;

[0053] In the figure, 1, bracket; 11, first plate; 12, second plate; 13, assembly rod; 14, ratchet; 15, first torsion spring; 16, third plate; 17, fourth plate; 171, first clearance groove; 172, third clearance groove;

[0054] 2. Energy storage assembly; 21. First drive assembly; 211. Drive motor; 212. Input gear; 213. Input shaft; 22. Energy storage gear; 23. Energy storage shaft; 24. Energy storage crank arm; 25. Energy storage spring;

[0055] 3. Closing assembly; 31. Second drive assembly; 311. Closing plate; 312. Closing lever; 3121. First transmission plate; 313. First plate return spring; 314. First transmission lever; 315. Closing half shaft; 3151. Second torsion spring; 3152. Second clearance groove; 3153. Extension; 3154. Tripping plate; 3155. Stop rod; 316. Closing drive member; 32. Limiting wheel; 321. Limiting block; 33. Closing buckle plate; 331. Abutment end; 332. First clearance end; 34. Closing cam; 341. Wheel body; 342. Protrusion;

[0056] 4. Disconnection assembly; 41. Third drive assembly; 411. Disconnection plate; 412. Disconnection lever; 4121. Second transmission plate; 413. Second lever return spring; 414. Second transmission lever; 415. Disconnection half shaft; 4151. Third torsion spring; 4152. Fourth clearance groove; 416. Disconnection drive member; 42. Disconnection buckle plate; 421. Second clearance end; 422. Through groove; 43. Fourth torsion spring; 44. Disconnection latch; 441. Articulated portion; 442. Abutment portion; 45. Fifth torsion spring; 46. Disconnection arm;

[0057] 5. Output assembly; 51. First output crank arm; 511. First output roller; 512. Second output roller; 52. Output portion; 521. Second output crank arm; 522. Output connecting rod; 523. Switch crank arm; 53. Opening spring; 54. Output shaft; 541. Stopper;

[0058] 6. First return spring;

[0059] 7. Indicator assembly; 71. Indicator switch; 72. First indicator plate; 73. Second indicator plate; 74. First indicator rod; 75. Third transmission rod; 76. Second indicator rod; 77. Indicator crank arm; 78. Sixth torsion spring;

[0060] 8. Auxiliary switch. DETAILED DESCRIPTION

[0061] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0062] In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal" and the like used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0063] In the description of the present invention, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0065] The technical solution of the present invention is preferably described below in conjunction with the embodiments and drawings.

[0066] like Figure 1-17As shown, a circuit breaker spring-operated device according to an embodiment of the present invention comprises:

[0067] The bracket 1 includes a first plate 11 and a second plate 12 spaced apart in a front-to-rear direction;

[0068] Output assembly 5, the output assembly includes an output part 52 and a switch-off spring 53, the output part 52 is arranged between the first plate 11 and the second plate 12, and is used to control the opening and closing of the circuit breaker, and the switch-off spring 53 is connected to the output part 52, and can provide the output part 52 with a switch-off driving force;

[0069] The energy storage component 2 includes an energy storage spring 25, which is arranged on the first plate 11. When the energy storage spring 25 is in an elongated state, it can provide a closing driving force to the output part 52;

[0070] The closing assembly 3 is arranged between the first plate 11 and the second plate 12, and the closing assembly 3 can lock or release the energy storage spring 25;

[0071] The opening switch assembly 4 is arranged between the first plate 11 and the second plate 12 and can lock or release the opening switch spring 53 .

[0072] Energy storage component 2, energy storage component 2 includes a first drive component 21, an energy storage gear 22, an energy storage shaft 23, an energy storage crank arm 24 and an energy storage spring 25, the first drive component 21 is arranged on the first plate 11, the energy storage gear 22 is rotatably arranged between the first plate 11 and the second plate 12, the power output end of the first drive component 21 is connected to the energy storage gear 22, and is used to drive the energy storage gear 22 to rotate, the energy storage shaft 23 extends in the front-to-back direction and is coaxially fixed with the energy storage gear 22, the rear end of the energy storage shaft 23 is rotatably arranged on the second plate 12, the front end of the energy storage shaft 23 extends forward through the first plate 11, the front end of the energy storage shaft 23 is connected to one end of the energy storage crank arm 24, the other end of the energy storage crank arm 24 is connected to one end of the energy storage spring 25, and the other end of the energy storage spring 25 is arranged on the first plate 11;

[0073] The closing assembly 3 includes a second drive assembly 31, a limiting wheel 32, a closing plate 33, and a closing cam 34. The second drive assembly 31 is arranged on the first plate 11. The closing plate 33 is rotatably arranged between the first plate 11 and the second plate 12. The power output end of the second drive assembly 31 is connected to the closing plate 33, which is used to drive the closing plate 33 to rotate. The limiting wheel 32 is fixedly arranged on the energy storage shaft 23. A limiting block 321 is provided on the outer peripheral wall of the limiting wheel 32. The limiting block 321 is used to abut against the closing plate 33. The closing cam 34 is fixedly arranged on the energy storage shaft 23. The closing cam 34 includes a wheel body 341 and a convex portion 342 smoothly connected to the wheel body 341.

[0074] The opening brake assembly 4 includes a third driving assembly 41 and an opening brake plate 42. The third driving assembly 41 is arranged on the first plate 11. The opening brake plate 42 is rotatably arranged between the first plate 11 and the second plate 12. The power output end of the third driving assembly 41 is connected to the opening brake plate 42 for driving the opening brake plate 42 to rotate. The opening brake plate 42 is movably provided with an opening brake latch 44.

[0075] The output assembly 5 includes a first output crank arm 51, an output portion 52 and an opening spring 53. The first output crank arm 51 is rotatably disposed between the first plate 11 and the second plate 12. The first output crank arm 51 has a first end and a second end. The first end and the second end are respectively provided with a first output roller 511 and a second output roller 512. The first output roller 511 is used to abut against the convex portion 342, and the second output roller 512 is used to abut against the opening latch 44. The output portion 52 is connected to the first output crank arm 51, and the output portion 52 is used to control the opening and closing of the circuit breaker. The opening spring 53 is connected to the first output crank arm 51 through the output portion 52, and the opening spring 53 is used to provide a force for the first output crank arm 51 to rotate in the opening direction.

[0076] The circuit breaker spring-operated device has energy storage state, closing state and opening state;

[0077] When the circuit breaker spring-operated device is in the energy storage state, the other end of the energy storage crank arm 24 is located above the energy storage shaft 23, the limit block 321 abuts against the closing plate 33, and the first output roller 511 abuts against the wheel body 341;

[0078] When the circuit breaker spring-operated device is in the closed state, the first output roller 511 is located outside the convex portion 342 of the closing cam 34, and the second output roller 512 abuts against the opening latch 44;

[0079] When the circuit breaker spring-operated device is in the opening state, the limit block 321 does not abut against the closing buckle plate 33 , and the first output roller 511 abuts against the wheel body 341 .

[0080] Based on the above technical solution, the first driving assembly 21 drives the energy storage gear 22 to rotate, driving the energy storage shaft 23 to rotate, so that the energy storage crank arm 24 rotates to stretch the energy storage spring 25 for energy storage, and the limit wheel 32 also rotates synchronously until the energy storage spring 25 is stretched to the longest, and the limit block 321 cooperates with the closing buckle plate 33 to abut. At this time, the circuit breaker spring operating device is in an energy storage state;

[0081] The second driving assembly 31 drives the closing plate 33 to rotate, and the limit block 321 is separated from the abutment of the closing plate 33. The elastic potential energy of the energy storage spring 25 is converted into the kinetic energy of the energy storage shaft 23, so that the energy storage shaft 23 rotates, driving the closing cam 34 to rotate. The first output roller 511 on the wheel body 341 that originally abuts against the closing cam 34 abuts against the convex part 342 of the closing cam 34 during the rotation of the closing cam 34, until the first output crank arm 51 rotates until the second output roller 512 abuts against the opening latch 44. At this time, the first output roller 511 is located on the outer side of the convex part 342, and the wheel part of the closing cam 34 is on the axis connecting the first output roller 511 and the energy storage shaft 23, and the circuit breaker spring operating device is in the closing state;

[0082] The third driving assembly 41 drives the opening plate 42 to rotate, driving the opening latch 44 to move, and the second output roller 512 is separated from the abutment of the opening latch 44. The first output crank arm 51 rotates under the elastic force of the opening spring 53 until the first output roller 511 abuts against the wheel body 341, and the circuit breaker spring-operated device is in the opening state;

[0083] The potential energy of the energy storage spring 25 can greatly shorten the closing time and the arc generation and extinguishing process, thereby ensuring the breaking performance of the circuit breaker.

[0084] Preferably, the first driving assembly 21 includes a driving motor 211, an input gear 212, and an input shaft 213. The driving motor 211 is installed on the front end surface of the first plate 11. The power output end of the driving motor 211 is connected to the input gear 212. The input gear 212 is located between the first plate 11 and the second plate 12. The input gear 212 is meshed with the energy storage gear 22. The input shaft 213 is transmission-connected with the power output end of the driving motor 211, allowing the input shaft 213 to be manually rotated to drive the input gear 212 to rotate.

[0085] An assembly rod 13 is connected between the first plate 11 and the second plate 12. A pawl 14 is rotatably provided on the assembly rod 13. A first torsion spring 15 is sleeved on the assembly rod 13. One end of the first torsion spring 15 is connected to the pawl 14. The end of the pawl 14 abuts against the tooth groove of the input gear 212, allowing the input gear 212 to rotate in only one direction.

[0086] Based on the above technical solution, the driving motor 211 or the input shaft 213 drives the input gear 212 to rotate, driving the energy storage gear 22 to rotate, and the end of the pawl 14 abuts against the tooth groove of the input gear 212. The first torsion spring 15 keeps the end of the pawl 14 in contact with the surface of the input gear 212, allowing the input gear 212 to rotate only in one direction.

[0087] The drive motor 211 and the input shaft 213 are dual-driven. Under normal circumstances, the drive motor 211 automatically completes energy storage, thereby improving the degree of automation. In the event of a power failure or maintenance, the manual input shaft 213 can also drive the circuit breaker to store energy, thereby ensuring that the equipment is still available in the absence of power, thereby improving the flexibility and reliability of emergency operations. The ratchet 14 is in cooperation with the tooth groove of the input gear 212, and the elastic force of the first torsion spring 15 ensures that the input gear 212 rotates in one direction, thereby avoiding reverse rotation, and avoiding reverse rotation of the energy storage gear 22 due to vibration or unexpected external force during the energy storage process, thereby ensuring the stability of energy storage. It prevents energy from being released before energy storage is completed, thereby avoiding accidental operation, and improving the safety of the circuit breaker.

[0088] In a preferred embodiment, an auxiliary switch 8 is also provided on the first plate 11, and the auxiliary switch 8 is electrically connected to the drive motor 211. When the end of the energy storage arm 24 connected to the energy storage spring 25 rotates to the state where the energy storage spring 25 is stretched to the maximum, the energy storage arm 24 abuts against the contact of the auxiliary switch 8. At this time, the drive motor 211 is disconnected, and the limit block 321 just abuts against the closing buckle plate 33.

[0089] By providing the auxiliary switch 8 , the driving motor 211 can be stopped in time to avoid collision between the limit block 321 and the closing buckle plate 33 and thus damage.

[0090] Preferably, the bracket 1 also includes a third plate 16 and a fourth plate 17 spaced apart in the front-to-back direction, the third plate 16 and the fourth plate 17 are both located in front of the first plate 11, the third plate 16 and the fourth plate 17 are mounted on the first plate 11 through pillars, the second drive assembly 31 includes a closing plate 311, a closing rod 312, a first plate return spring 313, a first transmission rod 314 and a closing half shaft 315, the closing rod 312 extends in the front-to-back direction and passes through the third plate 16 and the fourth plate 17, the closing plate 311 is arranged at the front end of the closing rod 312, the first plate return spring 313 is wound around the outer periphery of the closing rod 312, and the two ends of the first plate return spring 313 are respectively connected to the front end of the closing rod 312 and the front of the third plate 16 The end surface, the closing lever 312 is provided with a first transmission plate 3121, the first transmission plate 3121 is in a wedge shape with a thickness gradually increasing from the back to the front, the front end of the first transmission plate 3121 is in contact with the rear end surface of the third plate 16, the fourth plate 17 is provided with a first clearance groove 171 for the first transmission plate 3121 to pass through, the closing half shaft 315 extends along the front-to-back direction and is rotatably arranged on the first plate 11 and the second plate 12, the front end of the closing half shaft 315 passes through the first plate 11 forward, the first transmission rod 314 is fixedly arranged at the front end of the closing half shaft 315, the end of the first transmission rod 314 corresponds to the inclined surface of the first transmission plate 3121, the closing half shaft 315 is sleeved with a second torsion spring 3151, and one end of the second torsion spring 3151 is connected to the first plate 11;

[0091] The closing plate 33 has an abutting end 331 and a first yielding end 332, the abutting end 331 is used to abut against the limit block 321, a second yielding groove 3152 is opened on the closing half shaft 315, the second yielding groove 3152 is used for the first yielding end 332 to pass through to allow the closing plate 33 to rotate, and a first reset spring 6 is provided on the second plate 12, one end of the first reset spring 6 is connected to the closing plate 33.

[0092] Based on the above technical solution, in the energy storage state, the first yielding end 332 of the closing buckle plate 33 is not allowed to be placed in the second yielding groove 3152, and the first yielding end 332 is in contact with the closing half-shaft 315, the closing button plate 311 is pressed, the closing button rod 312 overcomes the elastic force of the first button plate reset spring 313 and slides backward, the first transmission plate 3121 slides through the first yielding groove 171, the first transmission rod 314 is in contact with the inclined surface of the first transmission plate 3121 and slides along the inclined surface of the first transmission plate 3121, thereby driving the closing half-shaft 315 to rotate, the second yielding groove 3152 rotates with the closing half-shaft 315, the first yielding end 332 is disengaged from the abutment with the closing half-shaft 315, and the energy storage spring 25 releases energy, the limiting wheel 32 rotates, the limiting block 321 pushes the abutting end 331 of the closing button plate 33, so that the closing button plate 33 rotates, and the first giving way end 332 is accommodated in the second giving way groove 3152 when the closing button plate 33 rotates, and the limiting block 321 smoothly disengages from the abutment of the closing button plate 33, and the energy storage shaft 23 continues to rotate, and the first output roller 511 on the wheel body 341 abutting against the closing cam 34 rolls to the convex part 342 of the closing cam 34, and the first output crank arm 51 rotates as a result, and the output part 52 closes until the second output roller 512 abuts against the opening latch 44, and the energy storage spring 25 finishes releasing energy. At this time, the circuit breaker spring operating device is in the closed state.

[0093] It should be noted that the reset pulling force provided by the first reset spring 6 to the closing plate 33 causes the closing plate 33 to tend to have its abutting end 331 abut against the limiting wheel 32. In the energy storage state, the elastic potential energy of the energy storage spring 25 is much greater than the elastic potential energy of the first reset spring 6. Therefore, the limit block 321 can push the abutting end 331 of the closing plate 33 away, and the first reset spring 6 can reset the closing plate 33.

[0094] In a preferred embodiment, the end of the first transmission rod 314 is provided with an anti-wear sleeve.

[0095] Reduce the impact between the various transmission structures during the entire closing process and extend the service life of the circuit breaker spring-operated device.

[0096] More preferably, the second drive assembly 31 also includes a closing drive 316, which is installed on the rear end face of the second plate 12. The rear end of the closing half shaft 315 has an extension portion 3153 extending backward, and a trip plate 3154 is provided on the extension portion 3153. The power output end of the closing drive 316 can abut and push the trip plate 3154.

[0097] Specifically, the closing driving member 316 is a cylinder, and the closing driving member 316 pushes the trip plate 3154 to drive the closing half shaft 315 to rotate.

[0098] Manual and electric dual-drive closing makes operation more flexible.

[0099] More preferably, the third drive assembly 41 includes a gate-opening plate 411, a gate-opening rod 412, a second plate reset spring 413, a second transmission rod 414 and a gate-opening half shaft 415, the gate-opening rod 412 extends in the front-to-back direction and passes through the third plate 16 and the fourth plate 17, the gate-opening plate 411 is arranged at the front end of the gate-opening rod 412, the second plate reset spring 413 is wound around the outer periphery of the gate-opening rod 412, and the two ends of the second plate reset spring 413 are respectively connected to the front end of the gate-opening rod 412 and the front end surface of the third plate 16, the gate-opening rod 412 is provided with a second transmission plate 4121, and the second transmission plate 4121 is arranged from back to front. The thickness gradually increases in a wedge shape, the front end of the second transmission plate 4121 abuts against the rear end surface of the third plate 16, and the fourth plate 17 is provided with a third clearance groove 172 for the second transmission plate 4121 to pass through. The opening gate half shaft 415 extends along the front-to-back direction and is rotatably arranged on the first plate 11 and the second plate 12, and the front end of the opening gate half shaft 415 passes through the first plate 11 forward, and the second transmission rod 414 is fixedly arranged at the front end of the opening gate half shaft 415, and the end of the second transmission rod 414 corresponds to the inclined surface of the second transmission plate 4121. The opening gate half shaft 415 is sleeved with a third torsion spring 4151, and one end of the third torsion spring 4151 is connected to the first plate 11;

[0100] The opening brake plate 42 has a second yielding end 421, and a fourth yielding groove 4152 is formed on the opening brake semi-shaft 415. The fourth yielding groove 4152 is used for the second yielding end 421 to pass through so as to allow the opening brake plate 42 to rotate. A fourth torsion spring 43 is sleeved on the rotating shaft of the opening brake plate 42, and one end of the fourth torsion spring 43 is connected to the second plate 12.

[0101] A through slot 422 is provided on the opening brake plate 42, and the opening brake latch 44 has a hinge portion 441 and a contact portion 442. The hinge portion 441 is rotatably disposed in the through slot 422, and the contact portion 442 is used to abut against the second output roller 512. A fifth torsion spring 45 is provided between the opening brake plate 42 and the opening brake latch 44.

[0102] Based on the above technical solution, in the closed state, the second yielding end 421 of the opening gate buckle plate 42 is not placed in the fourth yielding groove 4152, and the second yielding end 421 is in contact with the opening gate half shaft 415, the opening gate button plate 411 is pressed, and the opening gate button rod 412 slides backwards due to the elastic force of the second button plate reset spring 413, the second transmission plate 4121 slides through the third yielding groove 172, the second transmission rod 414 is in contact with the inclined surface of the second transmission plate 4121 and slides along the inclined surface of the second transmission plate 4121, thereby driving the opening gate half shaft 415 to rotate, and the fourth yielding groove 4152 rotates with the opening gate half shaft 415 , the second yielding end 421 is disengaged from the abutment with the opening half shaft 415, and at the same time, the second output roller 512 is disengaged from the abutment with the opening latch 44, the opening spring 53 releases energy, the output portion 52 drives the first output crank arm 51 to rotate, and the second output roller 512 pushes the opening buckle plate 42 to rotate through the opening latch 44, the second yielding end 421 moves and is accommodated in the fourth yielding groove 4152, and the first output roller 511 located on the outer side of the protrusion 342 of the closing cam 34 moves inward until the first output roller 511 abuts against the wheel body 341 of the closing cam 34. At this time, the circuit breaker spring operating device is in the opening state.

[0103] It should be noted that the reset force provided by the fourth torsion spring 43 to the opening gate plate 42 causes the opening gate plate 42 to tend to rotate away from the fourth yielding groove 4152 of the opening gate half-shaft 415. In the closed state, the elastic potential energy of the opening gate spring 53 is much greater than the elastic potential energy of the fourth torsion spring 43. Therefore, when the second output roller 512 abuts against the opening gate latch 44, the second output roller 512 tends to push the opening gate plate 42 toward the fourth yielding groove 4152 of the opening gate half-shaft 415. Therefore, when the opening gate plate 42 is separated from the abutment with the opening gate half-shaft 415, the second output roller 512 pushes the opening gate plate 42 to rotate through the opening gate latch 44, so that the second yielding end 421 of the opening gate plate 42 is accommodated in the fourth yielding groove 4152, and the fourth torsion spring 43 can reset the opening gate plate 42.

[0104] More preferably, the third drive assembly 41 also includes a tripping drive 416, which is installed on the front end surface of the first plate 11, and a tripping arm 46 is rotatably provided on the front end surface of the first plate 11. The power output end of the tripping drive 416 can abut one end of the tripping arm to push the tripping arm to rotate, and the other end of the tripping arm is connected to the second transmission rod 414 for transmission.

[0105] Specifically, the opening brake driving member 416 is a cylinder.

[0106] More preferably, the output assembly 5 also includes an output shaft 54, which is rotatably arranged between the first plate 11 and the second plate 12, and the first output crank arm 51 is fixedly arranged on the output shaft 54. A stop rod 3155 is detachably provided on the closing half shaft 315, and a radially extending stop portion 541 is provided on the output shaft 54. The stop rod 3155 and the stop portion 541 can abut against each other to prevent the closing half shaft 315 from rotating.

[0107] When the circuit breaker spring operating device is in the closed state, the stop rod 3155 is opposite to the stop portion 541. When the closing half shaft 315 is driven to rotate by the closing drive member 316 or the closing button 311 again, the stop rod 3155 abuts against the stop portion 541 to prevent the circuit breaker spring operating device from being closed again.

[0108] In a specific embodiment, the stopper 541 is a spring.

[0109] Avoid misoperation in the closed state, prevent repeated closing from causing damage to equipment or unstable operation of the power system, and improve the safety and reliability of power equipment.

[0110] More preferably, the circuit breaker spring-operated device is installed in the mechanism frame, the output part 52 includes a second output crank arm 521, an output connecting rod 522, and a switch crank arm 523, the rear end of the output shaft 54 ​​passes through the second plate 12 backward and is detachably fixedly connected to one end of the second output crank arm 521, one end of the output connecting rod 522 is hinged to the other end of the second output crank arm 521, the other end of the output connecting rod 522 is hinged to one end of the switch crank arm 523, the other end of the switch crank arm 523 is connected to the opening spring 53, the other end of the opening spring 53 is connected to the mechanism frame, and the opening spring 53 is in an elongated state.

[0111] By rationally designing the structures of the second output crank arm 521, the output connecting rod 522 and the switch crank arm 523, the lengths of the second output crank arm 521, the output connecting rod 522 and the switch crank arm 523 are rationally distributed within the limited space of the mechanism frame, thereby increasing the angle of rotation of the switch crank arm 523 per unit time, thereby increasing the angular velocity of the switch closing, and realizing rapid opening and closing of the switch.

[0112] Preferably, the circuit breaker spring-operated device further comprises an indicating assembly 7 , which comprises an indicating switch 71 and a first indicating plate 72 . The first output crank arm 51 further comprises a third end, which is transmission-connected to the indicating switch 71 and the first indicating plate 72 .

[0113] In a specific embodiment, the indication assembly 7 also includes a second indication rod 76, an indication crank arm 77, and an indication component. The indication switch 71 has an input end and an output end. The two ends of the second indication rod 76 are respectively hinged to the third end of the first output crank arm 51 and one end of the indication crank arm 77. The other end of the indication crank arm 77 is connected to the input end of the indication switch 71. The output end of the indication switch 71 is connected to the first indication plate 72. The first indication plate 72 can rotate relative to the indication switch 71. The indication switch 71 is electrically connected to the indication component.

[0114] Specifically, the indicating components are structures such as indicator lights and indicating screens.

[0115] Indicates whether the circuit breaker spring-operated device is in the closed or open state.

[0116] More preferably, the indication assembly 7 also includes a second indication plate 73, a first indication rod 74 and a third transmission rod 75, the first indication rod 74 extends in the front-to-back direction, the rear end of the first indication rod 74 is rotatably disposed on the second plate 12, the front end of the first indication rod 74 passes through the first plate 11 forward and is detachably connected to the second indication plate 73, one end of the third transmission rod 75 is mounted on the first indication rod 74, the other end of the third transmission rod 75 abuts against the upper end of the energy storage spring 25, and a sixth torsion spring 78 is sleeved on the first indication rod 74, and one end of the sixth torsion spring 78 is connected to the first plate 11.

[0117] Indicates whether the circuit breaker spring operating device is in the energy storage state.

[0118] In summary, the embodiment of the present invention provides a circuit breaker spring operating device, wherein the first driving assembly 21 drives the energy storage gear 22 to rotate, drives the energy storage shaft 23 to rotate, so that the energy storage crank arm 24 rotates to stretch the energy storage spring 25 to store energy, and the limit wheel 32 also rotates synchronously until the energy storage spring 25 is stretched to the longest, the limit block 321 cooperates with the closing buckle plate 33 to abut, and at this time, the circuit breaker spring operating device is in an energy storage state;

[0119] The second driving assembly 31 drives the closing plate 33 to rotate, and the limit block 321 is separated from the abutment of the closing plate 33. The elastic potential energy of the energy storage spring 25 is converted into the kinetic energy of the energy storage shaft 23, so that the energy storage shaft 23 rotates, driving the closing cam 34 to rotate. The first output roller 511 on the wheel body 341 that originally abuts against the closing cam 34 abuts against the convex part 342 of the closing cam 34 during the rotation of the closing cam 34, until the first output crank arm 51 rotates until the second output roller 512 abuts against the opening latch 44. At this time, the first output roller 511 is located on the outer side of the convex part 342, and the wheel part of the closing cam 34 is on the axis connecting the first output roller 511 and the energy storage shaft 23, and the circuit breaker spring operating device is in the closing state;

[0120] The third driving assembly 41 drives the opening plate 42 to rotate, driving the opening latch 44 to move, and the second output roller 512 is separated from the abutment of the opening latch 44. The first output crank arm 51 rotates under the elastic force of the opening spring 53 until the first output roller 511 abuts against the wheel body 341, and the circuit breaker spring-operated device is in the opening state;

[0121] The potential energy of the energy storage spring 25 can greatly shorten the closing time, shorten the arc generation and extinguishing process, and thus ensure the breaking performance of the circuit breaker. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A circuit breaker spring-operated device, characterized in that: include: A bracket (1), the bracket (1) comprising a first plate (11) and a second plate (12) arranged at intervals in a front-to-rear direction; An output component (5), the output component comprising an output portion (52) and a switch-off spring (53), the output portion (52) being arranged between the first plate (11) and the second plate (12) and being used to control the opening and closing of the circuit breaker, the switch-off spring (53) being connected to the output portion (52) and being capable of providing the output portion (52) with a switch-off driving force; An energy storage component (2), the energy storage component (2) comprising an energy storage spring (25), the energy storage spring being arranged on the first plate (11), and being capable of providing a closing driving force to the output portion (52) when the energy storage spring (25) is in an extended state; A closing assembly (3), the closing assembly (3) being arranged between the first plate (11) and the second plate (12), the closing assembly (3) being capable of locking or releasing the energy storage spring (25); A switch-off assembly (4), wherein the switch-off assembly (4) is arranged between the first plate (11) and the second plate (12), and is capable of locking or releasing the switch-off spring (53).

2. The circuit breaker spring-operated device according to claim 1, characterized in that: The energy storage assembly (2) further comprises a first driving assembly (21), an energy storage gear (22), an energy storage shaft (23), and an energy storage crank arm (24); the first driving assembly (21) is arranged on the first plate (11); the energy storage gear (22) is rotatably arranged between the first plate (11) and the second plate (12); a power output end of the first driving assembly (21) is connected to the energy storage gear (22) for driving the energy storage gear (22) to rotate; the energy storage shaft (23) ) extends in the front-to-back direction and is coaxially fixed with the energy storage gear (22), the rear end of the energy storage shaft (23) is rotatably arranged on the second plate (12), the front end of the energy storage shaft (23) extends forward through the first plate (11), the front end of the energy storage shaft (23) is connected to one end of the energy storage crank arm (24), the other end of the energy storage crank arm (24) is connected to one end of the energy storage spring (25), and the other end of the energy storage spring (25) is arranged on the first plate (11).

3. The circuit breaker spring-operated device according to claim 2, characterized in that: The first driving assembly (21) comprises a driving motor (211), an input gear (212), and an input shaft (213); the driving motor (211) is mounted on the front end surface of the first plate (11); the power output end of the driving motor (211) is connected to the input gear (212); the input gear (212) is located between the first plate (11) and the second plate (12); the input gear (212) is meshed with the energy storage gear (22); the input shaft (213) is transmission-connected to the power output end of the driving motor (211); and the input shaft (213) is allowed to be manually rotated to drive the input gear (212) to rotate; An assembly rod (13) is connected between the first plate (11) and the second plate (12); a pawl (14) is rotatably provided on the assembly rod (13); a first torsion spring (15) is sleeved on the assembly rod (13); one end of the first torsion spring (15) is connected to the pawl (14); an end of the pawl (14) abuts against a tooth groove of the input gear (212), allowing the input gear (212) to rotate in only one direction.

4. The circuit breaker spring-operated device according to claim 2, characterized in that: The closing assembly (3) comprises a second driving assembly (31), a limiting wheel (32), a closing plate (33), and a closing cam (34); the second driving assembly (31) is arranged on the first plate (11); the closing plate (33) is rotatably arranged between the first plate (11) and the second plate (12); a power output end of the second driving assembly (31) is connected to the closing plate (33) and is used to drive the closing plate (33) to rotate; the limiting wheel (32) is fixedly arranged on the energy storage shaft (23); a limiting block (321) is provided on the outer peripheral wall of the limiting wheel (32); the limiting block (321) is used to abut against the closing plate (33); the closing cam (34) is fixedly arranged on the energy storage shaft (23); and the closing cam (34) comprises a wheel body (341) and a convex portion (342) smoothly connected to the wheel body (341).

5. The circuit breaker spring-operated device according to claim 4, characterized in that: The bracket (1) further comprises a third plate (16) and a fourth plate (17) arranged at intervals in the front-to-back direction, the third plate (16) and the fourth plate (17) are both located in front of the first plate (11) body, the second drive assembly (31) comprises a closing plate (311), a closing rod (312), a first plate return spring (313), a first transmission rod (314) and a closing half shaft (315), the closing rod (312) extending in the front-to-back direction and passing through the third plate (16) and the fourth plate (17), the closing plate (311) being arranged at the front end of the closing rod (312), the first plate return spring (313) being wound around the outer periphery of the closing rod (312), and the two ends of the first plate return spring (313) being respectively connected to the front end of the closing rod (312) and the front end surface of the third plate (16), the closing rod (312) being provided with a first spring. A first transmission plate (3121) is provided, the first transmission plate (3121) is in a wedge shape with a thickness gradually increasing from the back to the front, the front end of the first transmission plate (3121) is in contact with the rear end surface of the third plate (16), the fourth plate (17) is provided with a first clearance groove (171) for the first transmission plate (3121) to pass through, the closing half shaft (315) extends in the front-to-back direction and is rotatably arranged on the first plate (11) and the second plate (12), the front end of the closing half shaft (315) passes through the first plate (11) forwardly, the first transmission rod (314) is fixedly arranged on the front end of the closing half shaft (315), the end of the first transmission rod (314) corresponds to the inclined surface of the first transmission plate (3121), the closing half shaft (315) is sleeved with a second torsion spring (3151), and one end of the second torsion spring (3151) is connected to the first plate (11); The closing plate (33) comprises an abutting end (331) and a first yielding end (332), wherein the abutting end (331) is used to abut against the limiting block (321), a second yielding groove (3152) is provided on the closing half shaft (315), and the second yielding groove (3152) is used to allow the first yielding end (332) to pass through so as to allow the closing plate (33) to rotate, and a first reset spring (6) is provided on the second plate (12), and one end of the first reset spring (6) is connected to the closing plate (33).

6. The circuit breaker spring-operated device according to claim 5, characterized in that: The second drive assembly (31) further comprises a closing drive member (316), wherein the closing drive member (316) is mounted on the rear end surface of the second plate (12), and the rear end of the closing half shaft (315) has an extension portion (3153) extending backwards, and a trip plate (3154) is provided on the extension portion (3153), and the power output end of the closing drive member (316) is capable of abutting against and pushing the trip plate (3154).

7. The circuit breaker spring-operated device according to claim 5, characterized in that: The gate opening assembly (4) comprises a third drive assembly (41) and a gate opening plate (42); the third drive assembly (41) is arranged on the first plate (11); the gate opening plate (42) is rotatably arranged between the first plate (11) and the second plate (12); a power output end of the third drive assembly (41) is connected to the gate opening plate (42) for driving the gate opening plate (42) to rotate; a gate opening latch (44) is movably arranged on the gate opening plate (42).

8. The circuit breaker spring-operated device according to claim 7, characterized in that: The third driving assembly (41) comprises a gate opening push plate (411), a gate opening push rod (412), a second push plate reset spring (413), a second transmission rod (414) and a gate opening half shaft (415); the gate opening push rod (412) extends in the front-to-back direction and passes through the third plate (16) and the fourth plate (17); the gate opening push plate (411) is arranged at the front end of the gate opening push rod (412); the second push plate reset spring (413) is wound around the outer circumference of the gate opening push rod (412); and the two ends of the second push plate reset spring (413) are respectively connected to the front end of the gate opening push rod (412) and the front end surface of the third plate (16); the gate opening push rod (412) is provided with a second transmission plate (4121); the second transmission plate (4121) has a thickness gradually increasing from the back to the front. wedge-shaped, the front end of the second transmission plate (4121) abuts against the rear end surface of the third plate (16), the fourth plate (17) is provided with a third clearance groove (172) for the second transmission plate (4121) to pass through, the opening gate half shaft (415) extends in the front-to-back direction and is rotatably arranged on the first plate (11) and the second plate (12), the front end of the opening gate half shaft (415) passes through the first plate (11) forward, the second transmission rod (414) is fixedly arranged on the front end of the opening gate half shaft (415), the end of the second transmission rod (414) corresponds to the inclined surface of the second transmission plate (4121), the opening gate half shaft (415) is sleeved with a third torsion spring (4151), and one end of the third torsion spring (4151) is connected to the first plate (11); The opening gate plate (42) has a second yielding end (421), and a fourth yielding groove (4152) is provided on the opening gate half shaft (415), and the fourth yielding groove (4152) is used for allowing the second yielding end (421) to pass through so as to allow the opening gate plate (42) to rotate, and a fourth torsion spring (43) is sleeved on the rotating shaft of the opening gate plate (42), and one end of the fourth torsion spring (43) is connected to the second plate (12); The opening brake plate (42) is provided with a through slot (422), the opening brake latch (44) has a hinged portion (441) and an abutting portion (442), the hinged portion (441) is rotatably disposed in the through slot (422), and a fifth torsion spring (45) is provided between the opening brake plate (42) and the opening brake latch (44).

9. The circuit breaker spring-operated device according to claim 8, characterized in that: The third drive assembly (41) further comprises a tripping drive member (416), wherein the tripping drive member (416) is mounted on the front end surface of the first plate (11), and a tripping arm (46) is rotatably provided on the front end surface of the first plate (11), and the power output end of the tripping drive member (416) can abut against one end of the tripping arm to drive the tripping arm to rotate, and the other end of the tripping arm is transmission-connected to the second transmission rod (414).

10. The circuit breaker spring-operated device according to claim 8, characterized in that: The output assembly (5) comprises a first output crank arm (51), an output portion (52) and a brake opening spring (53); the first output crank arm (51) is rotatably arranged between the first plate (11) and the second plate (12); the first output crank arm (51) has a first end and a second end; the first end and the second end are respectively provided with a first output roller (511) and a second output roller (512); the first output roller (511) is used to abut against the convex portion (342); and the second output roller (512) is used to abut against the convex portion (342). The output roller (512) is used to abut against the opening latch (44), the abutting portion (442) is used to abut against the second output roller (512), the output portion (52) is connected to the first output crank arm (51), the output portion (52) is used to control the opening and closing of the circuit breaker, the opening spring (53) is connected to the first output crank arm (51) through the output portion (52), and the opening spring (53) is used to provide a force for the first output crank arm (51) to rotate in the opening direction.

11. The circuit breaker spring-operated device according to claim 10, characterized in that: The output assembly (5) further comprises an output shaft (54), wherein the output shaft (54) is rotatably arranged between the first plate (11) and the second plate (12), the first output crank arm (51) is fixedly arranged on the output shaft (54), a stop rod (3155) is detachably arranged on the closing half shaft (315), a radially extending stop portion (541) is arranged on the output shaft (54), and the stop rod (3155) and the stop portion (541) can abut against each other to prevent the closing half shaft (315) from rotating.

12. The circuit breaker spring-operated device according to claim 11, characterized in that: The circuit breaker spring-operated device is installed in a mechanism frame, and is characterized in that the output part (52) comprises a second output crank arm (521), an output connecting rod (522), and a switch crank arm (523); the rear end of the output shaft (54) passes through the second plate (12) backwards and is detachably fixedly connected to one end of the second output crank arm (521); one end of the output connecting rod (522) is hinged to the other end of the second output crank arm (521); the other end of the output connecting rod (522) is hinged to one end of the switch crank arm (523); the other end of the switch crank arm (523) is connected to the opening spring (53); the other end of the opening spring (53) is connected to the mechanism frame; and the opening spring (53) is in an extended state.

13. The circuit breaker spring-operated device according to claim 10, characterized in that: The invention also comprises an indication assembly (7), wherein the indication assembly (7) comprises an indication switch (71) and a first indication plate (72); the first output crank arm (51) further comprises a third end, and the third end is in transmission connection with the indication switch (71) and the first indication plate (72).

14. The circuit breaker spring-operated device according to claim 13, characterized in that: The indicating assembly (7) further comprises a second indicating plate (73), a first indicating rod (74) and a third transmission rod (75), wherein the first indicating rod (74) extends in the front-rear direction, the rear end of the first indicating rod (74) is rotatably arranged on the second plate (12), the front end of the first indicating rod (74) passes through the first plate (11) forward and is detachably connected to the second indicating plate (73), one end of the third transmission rod (75) is mounted on the first indicating rod (74), the other end of the third transmission rod (75) is abutted against the upper end of the energy storage spring (25), the first indicating rod (74) is sleeved with a sixth torsion spring (78), and one end of the sixth torsion spring (78) is connected to the first plate (11).

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