A switch-on and switch-off operating mechanism

Abstract

The present invention discloses a switch-on / off operating mechanism, comprising a support frame and an operating unit arranged on the support frame; the operating unit comprises a main switch-on / off assembly, a secondary switch-on / off assembly, a spring assembly and a linkage assembly; the main switch-on / off assembly comprises a main switch-on / off transmission shaft; the secondary switch-on / off assembly comprises a secondary switch-on / off transmission shaft; and further comprises a main switch-on / off transmission mechanism for driving the main switch-on / off transmission shaft to rotate back and forth and a secondary switch-on / off transmission mechanism for driving the secondary switch-on / off transmission shaft to rotate back and forth. The present invention adopts a main switch-on / off transmission mechanism and a secondary switch-on / off transmission mechanism to drive two sets of switch-on / off mechanisms to perform switch-on / off operations, thereby eliminating the need to adopt a traditional multi-gear structure, thereby having the advantages of simplified structure and easy maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission and distribution systems, and in particular to an opening and closing operating mechanism. Background Art

[0002] Power circuit breakers are key equipment in power transmission and distribution systems, and the opening and closing operating mechanism is the core component of the circuit breaker. This mechanism is responsible for controlling the opening (disconnection) and closing (closing) actions of the circuit breaker, thereby realizing the control and protection of the circuit. The opening and closing operating mechanism is usually composed of a drive part, a transmission part, and a control part. The drive part provides power to enable the circuit breaker to perform opening and closing operations; the transmission part transmits the power of the drive part to the contacts of the circuit breaker to realize the opening and closing of the contacts; the control part is responsible for receiving instructions and controlling the actions of the drive and transmission parts. In actual operation, when the circuit needs to be disconnected, the control part will receive the opening command, and then drive the transmission part to separate the circuit breaker contacts, thereby achieving the purpose of disconnecting the circuit. Similarly, when the circuit needs to be closed, the control part will receive the closing command, drive the transmission part to make the circuit breaker contacts contact, thereby closing the circuit. The design of the opening and closing operating mechanism needs to meet the requirements of fast, accurate, and reliable. In emergency situations, such as short circuits or overloads, circuit breakers need to quickly disconnect the circuit to prevent equipment damage and safety accidents such as fires. Therefore, the performance of the opening and closing operating mechanism is directly related to the stability and safety of the power system. In general, the opening and closing operating mechanism is a key component in the power circuit breaker, and its performance directly affects the breaking capacity and service life of the circuit breaker. With the continuous advancement of science and technology, the design of the opening and closing operating mechanism is also constantly optimized and innovated to adapt to a more complex and harsh power environment.

[0003] The opening and closing operating mechanism of the traditional three-position power switch usually adopts a complex multi-gear structure to accumulate energy for the energy storage spring. However, this design has some significant disadvantages. First, its mechanical transmission structure is quite complex, consisting of multiple gears and transmission components, resulting in a long transmission path. This not only increases the volume of the mechanism and makes it bulky, but also the manufacturing and assembly process is relatively cumbersome, requiring high-precision processing and meticulous assembly technology. Secondly, due to the complex mechanical structure and long transmission path, the mechanism is easily impacted by various forces during use, resulting in deformation and damage. This not only affects the normal operation of the switch, but also may threaten the stability of the power system. Furthermore, once the mechanism fails or is damaged, replacement and maintenance are quite inconvenient. The complex structure and large volume make maintenance work difficult, increasing maintenance costs and time costs. Finally, this traditional design also leads to high manufacturing costs, which is not conducive to the industrialization upgrade and market competition of the product. With the development of modern power technology, higher requirements are put forward for the efficiency, stability and economy of power equipment. Therefore, this traditional three-position power switch opening and closing operating mechanism faces huge challenges. Therefore, it is necessary to explore a simpler, more efficient and economical opening and closing operating mechanism design to meet the development needs of modern power technology. Summary of the invention

[0004] Therefore, in order to overcome the shortcomings of the traditional opening and closing operating mechanism, the present invention provides an opening and closing operating mechanism with a simplified structure and easy maintenance.

[0005] The present invention provides a switch-on / off operating mechanism, comprising a support frame and an operating unit arranged on the support frame; the operating unit comprises a main switch-on / off assembly, a secondary switch-on / off assembly, a spring assembly and a linkage assembly; the main switch-on / off assembly comprises a main switch-on / off transmission shaft; the secondary switch-on / off assembly comprises a secondary switch-on / off transmission shaft;

[0006] It also includes a main opening and closing switch transmission mechanism for driving the main opening and closing switch transmission shaft to reciprocate, wherein the main opening and closing switch transmission mechanism includes a main opening and closing switch driving shaft rotatably arranged on a support frame, a main opening and closing switch driving gear fixedly arranged on the main opening and closing switch driving shaft, a main opening and closing switch passive gear fixedly arranged on the main opening and closing switch transmission shaft, and a main opening and closing switch transmission set chain connecting the main opening and closing switch driving gear and the main opening and closing switch passive gear;

[0007] It also includes a secondary opening and closing switch transmission mechanism for driving the secondary opening and closing switch transmission shaft to rotate back and forth, and the secondary opening and closing switch transmission mechanism includes a secondary opening and closing switch driving shaft rotatably arranged on a support frame, a secondary opening and closing switch driving gear fixedly arranged on the secondary opening and closing switch driving shaft, a secondary opening and closing switch passive gear fixedly arranged on the secondary opening and closing switch transmission shaft, and a main opening and closing switch transmission chain connecting the secondary opening and closing switch driving gear and the secondary opening and closing switch passive gear.

[0008] Furthermore, the support frame includes a fixed plate, a support plate 1, a support plate 2 and a plurality of support columns; the support columns fixedly connect the fixed plate, the support plate 1 and the support plate 2 to form the support frame.

[0009] Furthermore, the operating unit is arranged between the first supporting plate and the second supporting plate.

[0010] Furthermore, the main opening and closing switch assembly also includes a main opening and closing switch positioning member, a main opening and closing switch driving member, a main opening and closing switch positioning stud and a main opening and closing switch limiting assembly.

[0011] Furthermore, the auxiliary opening and closing switch assembly also includes an auxiliary opening and closing switch positioning member, an auxiliary opening and closing switch driving member, an auxiliary opening and closing switch positioning stud and an auxiliary opening and closing switch limiting assembly.

[0012] Furthermore, the spring assembly includes only one opening and closing spring, and the opening and closing spring has a mid-inflection point position for transitioning from an energy storage state to an energy release state. Only one opening and closing spring can be used to complete the three-position opening and closing operation, which is conducive to reducing the product volume and is suitable for industrial mass production.

[0013] Furthermore, the spring assembly also includes a positioning pin, a base and a slide rod; the base is provided with a positioning slide hole along the extension direction of the spring.

[0014] Furthermore, the positioning pin is fixedly arranged on the main opening and closing switch fixing piece, the base is fixedly arranged on the auxiliary opening and closing switch fixing piece, one end of the sliding rod is connected to the positioning pin, and the other end of the sliding rod is located in the positioning sliding hole, the opening and closing switch spring is sleeved on the sliding rod, and the two ends of the opening and closing switch spring are respectively fixedly connected to the positioning pin and the base.

[0015] The technical solution of the present invention has the following advantages compared with the prior art:

[0016] 1. The present invention adopts a main opening and closing transmission mechanism and an auxiliary opening and closing transmission mechanism to drive two sets of opening and closing mechanisms to perform opening and closing operations, thereby eliminating the need to adopt a traditional multi-gear structure, thereby having the advantages of simplified structure and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation or the description of the prior art will be briefly introduced below.

[0018] Figure 1 A side view schematic diagram of the structure of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the opening and closing operating mechanism shown in the figure after removing part of the supporting frame;

[0020] Figure 3 for Figure 2 A schematic diagram of the front view structure of a main opening and closing positioning member in the opening and closing operating mechanism shown;

[0021] Figure 4 for Figure 2 A schematic diagram of the front view structure of the main opening and closing driving component in the opening and closing operating mechanism shown;

[0022] Figure 5 for Figure 2 A schematic diagram of the front view structure of a secondary opening and closing positioning member in the opening and closing operating mechanism shown;

[0023] Figure 6 for Figure 2 A schematic diagram of the front view structure of a secondary opening and closing driving component in the opening and closing operating mechanism shown;

[0024] Figure 7 for Figure 2 A schematic diagram of the front view structure of a linkage plate in the opening and closing operating mechanism shown;

[0025] Figure 8 for Figure 2 The shown opening and closing operating mechanism is a working principle structure diagram when it is in the main opening and closing state;

[0026] Fig. 9 for Figure 8 A rear view of the opening and closing operating mechanism shown;

[0027] Fig.10 for Figure 8 A working principle structure diagram of the opening and closing operating mechanism shown in the figure is in the intermediate state of the main opening and closing;

[0028] Fig.11 for Fig.10 A rear view of the opening and closing operating mechanism shown;

[0029] Fig.12 for Figure 8 A structural diagram of the working principle of the opening and closing operating mechanism when the opening and closing operating mechanism is in the main opening and closing state;

[0030] Fig.13 for Fig.12 A rear view of the opening and closing operating mechanism shown;

[0031] Fig.14 for Figure 8 A working principle structure diagram of the opening and closing operating mechanism shown in the figure is in the middle state of the main opening and closing switch;

[0032] Fig.15 for Fig.14 A rear view of the opening and closing operating mechanism shown;

[0033] Fig.16 It is a structural schematic diagram of the protective opening mechanism in the present invention.

[0034] Description of the accompanying drawings: support frame 1, fixed plate 11, support plate one 12, support plate two 13, support column 14, main opening and closing assembly 2, main opening and closing transmission shaft 21, main opening and closing positioning member 22, main opening and closing closing positioning recess 221, main opening and closing opening positioning recess 222, main opening and closing closing push-off portion 223, main opening and closing opening push-off portion 224, main opening and closing pushing portion 225, main opening and closing positioning shaft hole 226, main opening and closing driving member 23, main opening and closing closing groove 231, main opening and closing opening groove 232, main opening and closing limiting hook 233, main opening and closing closing limiting groove 234, main opening and closing driving roller 235 , main opening and closing drive shaft hole 236, main opening and closing positioning stud 24, main opening and closing limit assembly 25, main opening and closing limit pawl 251, main opening and closing limit round wheel 252, main opening and closing torsion spring 253, main opening and closing claw hook 2511, main opening and closing limit shaft 254, auxiliary opening and closing assembly 3, auxiliary opening and closing transmission shaft 31, auxiliary opening and closing positioning member 32, auxiliary opening and closing closing positioning recess 321, auxiliary opening and closing opening positioning recess 322, auxiliary opening and closing closing push-off portion 323, auxiliary opening and closing opening push-off portion 324, auxiliary opening and closing pushing portion 325, auxiliary opening and closing driving member 33, auxiliary opening and closing closing groove 331, auxiliary opening and closing opening Gate groove 332, auxiliary opening and closing limit hook 333, auxiliary opening and closing closing limit groove 334, auxiliary opening and closing drive roller 335, auxiliary opening and closing drive shaft hole 336, auxiliary opening and closing positioning stud 34, auxiliary opening and closing limit assembly 35, auxiliary opening and closing limit pawl 351, auxiliary opening and closing limit round wheel 352, auxiliary opening and closing torsion spring 353, auxiliary opening and closing claw hook 3511, auxiliary opening and closing limit rotating shaft 354, main opening and closing transmission mechanism 4, main opening and closing driving shaft 41, main opening and closing driving gear 42, main opening and closing driven gear 43, main opening and closing transmission chain 44, spring assembly 5, opening and closing spring 51, positioning pin 52, base 53, Slide rod 54, linkage assembly 6, linkage plate 61, linkage plate rotating shaft 62, main opening and closing switch track groove 63, slide groove 1 631, transmission groove 1 632, auxiliary opening and closing switch track groove 64, slide groove 2 641, transmission groove 2 642, linkage plate shaft hole 65, auxiliary opening and closing switch transmission mechanism 7, auxiliary opening and closing switch active shaft 71, auxiliary opening and closing switch active gear 72, auxiliary opening and closing switch passive gear 73, main opening and closing switch transmission chain 74, protective opening and closing mechanism 8, metal tube 81, metal tube inner hole 811, high temperature expansion member 82, rigid piston 83, plug 831, linear rack 832, sealing cap 84, center through hole 841, spring 85, linkage gear 86. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Example 1

[0037] The following is combined with Figures 1 to 15 This embodiment is described in detail.

[0038] The present invention provides Figures 1 to 15 The shown opening and closing operating mechanism is used for power switch equipment, and comprises a support frame 1 and an operating unit arranged on the support frame 1.

[0039] See Figure 1 As shown, the support frame 1 includes a fixed plate 11, a support plate 1 12, a support plate 2 13 and a plurality of support columns 14; the support columns 14 fixedly connect the fixed plate 11, the support plate 1 12 and the support plate 2 13 to form the support frame 1; the operating unit is arranged between the support plate 1 12 and the support plate 2 13.

[0040] See Figure 2 As shown, in this embodiment Figure 2 In the state shown, the main opening and closing switch is in the opening state, and the operating unit includes a main opening and closing switch assembly 2, an auxiliary opening and closing switch assembly 3, a spring assembly 5 and a linkage assembly 6. The main opening and closing switch assembly 2 includes a main opening and closing switch transmission shaft 21, a main opening and closing switch positioning member 22, a main opening and closing switch driving member 23, a main opening and closing switch positioning stud 24 and a main opening and closing switch limiting assembly 25. The main opening and closing switch transmission shaft 21 is rotatably arranged on the support frame 1, the main opening and closing switch positioning member 22 is fixedly arranged on the main opening and closing switch transmission shaft 21, and the main opening and closing switch driving member 23 is rotatably arranged on the main opening and closing switch transmission shaft 21.

[0041] See Figure 3As shown, the main opening and closing switch positioning member 22 is provided with a main opening and closing switch closing positioning recess 221, a main opening and closing switch opening positioning recess 222, a main opening and closing switch closing push-off portion 223, a main opening and closing switch opening push-off portion 224, a main opening and closing switch pushing portion 225, and a main opening and closing switch positioning shaft hole 226 for installing the main opening and closing switch. The main opening and closing switch positioning shaft hole 226 is adapted to the main opening and closing switch transmission shaft 21.

[0042] The main branch switch closing positioning recess 221, the main branch switch opening positioning recess 222, the main branch switch closing push-off portion 223 and the main branch switch opening push-off portion 224 are all arranged at the outer edge of the main branch switch positioning member 22, and the main branch switch closing positioning recess 221 and the main branch switch opening positioning recess 222 are respectively located on both sides of the main branch switch pushing portion 225; the main branch switch closing push-off portion 223 is arranged on the side of the main branch switch closing positioning recess 221 away from the main branch switch pushing portion 225, and is adjacent to the main branch switch closing positioning recess 221; the main branch switch opening push-off portion 224 is arranged on the side of the main branch switch opening positioning recess 222 away from the main branch switch pushing portion 225, and is adjacent to the main branch switch opening positioning recess 222.

[0043] See Figure 4 As shown, the main opening and closing switch driving member 23 is provided with a main opening and closing switch closing groove 231, a main opening and closing switch opening groove 232, a main opening and closing switch limiting hook 233, a main opening and closing switch closing limiting groove 234, a main opening and closing switch driving roller 235, and a main opening and closing switch driving shaft hole 236 for installing the main opening and closing switch. The main opening and closing switch driving shaft hole 236 is adapted to the main opening and closing switch transmission shaft 21. The main opening and closing switch driving roller 235 protrudes vertically from the plate body of the main opening and closing switch driving member 22. The main closing and closing switch closing groove 231, the main closing and opening switch opening groove 232, the main closing and opening switch limiting hook 233 and the main closing and opening switch closing limiting groove 234 are all arranged on the same side of the main closing and opening switch driving shaft hole 236, and the main closing and opening switch driving roller 235 is arranged on the other side of the main closing and opening switch driving shaft hole 236; the main closing and closing switch closing groove 231, the main closing and opening switch opening groove 232, the main closing and opening switch closing limiting groove 234 and the main closing and opening switch limiting hook 233 are arranged in sequence at the outer edge of the main closing and opening switch driving member 22.

[0044] In this embodiment, the main opening and closing switch pushing portion 225 is a cylinder vertically protruding from the plate body of the main opening and closing switch positioning member 22. The main opening and closing switch closing groove 231 and the main opening and closing switch opening groove 232 are both adapted to the main opening and closing switch pushing portion 225.

[0045] The main closing and opening positioning recess 221, the main closing and opening positioning recess 222 and the main closing and opening closing limit groove 234 are all adapted to the main closing and opening positioning stud 24. When the embodiment is in the main closing and opening state, Figure 8 As shown, the main opening and closing switch opening positioning recess 222 abuts against the main opening and closing switch positioning stud 24. When the embodiment is in the main opening and closing switch closing state, see Fig.12 As shown, the main opening and closing switch closing positioning recess 221 and the main opening and closing switch closing limit groove 234 are both in contact with the main opening and closing switch positioning stud 24 .

[0046] The main opening and closing switch limiting assembly 25 and the main opening and closing switch driving member 23 can be hooked and locked with each other to form a limiting fit to prevent the main opening and closing switch driving member from continuing to rotate; the main opening and closing switch limiting assembly 25 can be pushed away from the main opening and closing switch driving member 23 by the main opening and closing switch positioning member 22 and unlocked.

[0047] See Figure 2 As shown, the main separation and closing switch limiting assembly 25 includes a main separation and closing switch limiting pawl 251 rotatably arranged on the supporting frame 1, a main separation and closing switch limiting circular wheel 252 rotatably arranged on the main separation and closing switch limiting pawl 251, a main separation and closing switch torsion spring 253 and a main separation and closing switch limiting rotating shaft 254 for providing a reset elastic force for the main separation and closing switch limiting pawl 251; in this embodiment, the middle end of the main separation and closing switch torsion spring 253 is sleeved on the main separation and closing switch limiting rotating shaft 254, one end of the main separation and closing switch torsion spring 253 is hooked on the supporting frame 1, and the other end of the main separation and closing switch torsion spring 253 is hooked on the main separation and closing switch limiting pawl 251.

[0048] The main opening and closing switch limiting pawl 251 is rotatably set on the supporting frame 1 through the main opening and closing switch limiting rotating shaft 254, and the main opening and closing switch limiting pawl 251 is provided with a main opening and closing switch pawl hook 2511 adapted to the main opening and closing switch limiting hook 233; the main opening and closing switch limiting circular wheel 252 is rotatably set on the main opening and closing switch limiting pawl 251, and is located between the main opening and closing switch limiting rotating shaft 254 and the main opening and closing switch pawl hook 2511. Under the elastic force of the main opening and closing torsion spring 253, the main opening and closing limit pawl 251, the main opening and closing claw hook 2511 can be hooked and locked with the main opening and closing limit hook 233 rotated to the preset position to form a limit cooperation; the main opening and closing closing push-off part 223 and the main opening and closing opening push-off part 224 can each push the main opening and closing limit circular wheel 252 when they are rotated to the preset position, driving the main opening and closing claw hook 2511 to rotate a certain angle around the main opening and closing limit rotating shaft 254, and the main opening and closing claw hook 2511 moves away from the main opening and closing limit hook 233, so that the main opening and closing claw hook 2511 is disengaged from the main opening and closing limit hook 233 and unlocked.

[0049] In this embodiment, a gap is left between the main opening and closing switch positioning member 22 and the main opening and closing switch driving member 23, and there is also a height difference between the main opening and closing switch limiting circular wheel 252 and the main opening and closing switch claw hook 2511. Therefore, the main opening and closing switch closing push-off portion 223 and the main opening and closing switch opening push-off portion 224 will only push away the main opening and closing switch limiting circular wheel 252 during the rotation of the main opening and closing switch positioning member 22, and will not contact the main opening and closing switch claw hook 2511; similarly, the main opening and closing switch limiting hook 233 will only hook and lock with the main opening and closing switch claw hook 2511 during the rotation of the main opening and closing switch driving member, and will not contact the main opening and closing switch limiting circular wheel 252. That is, the main closing and opening switch pushing-off portion 223, the main closing and opening switch pushing-off portion 224 and the main closing and opening switch limiting circular wheel 252 are on the same working surface, the main closing and opening switch claw hook 2511 and the main closing and opening switch limiting hook 233 are on another working surface, and the two working surfaces are different surfaces.

[0050] See Figure 2 As shown, the auxiliary opening and closing switch assembly 3 includes an auxiliary opening and closing switch transmission shaft 31, an auxiliary opening and closing switch positioning member 32, an auxiliary opening and closing switch driving member 33, an auxiliary opening and closing switch positioning stud 34 and an auxiliary opening and closing switch limiting assembly 35. The auxiliary opening and closing switch transmission shaft 31 is rotatably arranged on the support frame 1, the auxiliary opening and closing switch positioning member 32 is fixedly arranged on the auxiliary opening and closing switch transmission shaft 31, and the auxiliary opening and closing switch driving member 33 is rotatably arranged on the auxiliary opening and closing switch transmission shaft 31.

[0051] See Figure 5 As shown, the auxiliary opening and closing switch positioning member 32 is provided with an auxiliary opening and closing switch closing positioning recess 321, an auxiliary opening and closing switch opening positioning recess 322, an auxiliary opening and closing switch closing push-off portion 323, an auxiliary opening and closing switch opening push-off portion 324, an auxiliary opening and closing switch pushing portion 325 and an auxiliary opening and closing switch positioning shaft hole 326 for installing itself, and the auxiliary opening and closing switch positioning shaft hole 326 is adapted to the auxiliary opening and closing switch transmission shaft 31.

[0052] The auxiliary opening and closing switch closing positioning recess 321, the auxiliary opening and closing switch opening positioning recess 322, the auxiliary opening and closing switch closing push-off portion 323 and the auxiliary opening and closing switch opening push-off portion 324 are all arranged at the outer edge of the auxiliary opening and closing switch positioning member 32, and the auxiliary opening and closing switch closing positioning recess 321 and the auxiliary opening and closing switch opening positioning recess 322 are respectively located on both sides of the auxiliary opening and closing switch pushing portion 325; the auxiliary opening and closing switch closing push-off portion 323 is arranged on the side of the auxiliary opening and closing switch closing positioning recess 321 away from the auxiliary opening and closing switch pushing portion 325, and is adjacent to the auxiliary opening and closing switch closing positioning recess 321; the auxiliary opening and closing switch opening push-off portion 324 is arranged on the side of the auxiliary opening and closing switch opening positioning recess 322 away from the auxiliary opening and closing switch pushing portion 325, and is adjacent to the auxiliary opening and closing switch opening positioning recess 322.

[0053] See Figure 6As shown, the auxiliary opening and closing switch driving member 33 is provided with an auxiliary opening and closing switch closing groove 331, an auxiliary opening and closing switch opening groove 332, an auxiliary opening and closing switch limiting hook 333, an auxiliary opening and closing switch closing limiting groove 334, an auxiliary opening and closing switch driving roller 335, and an auxiliary opening and closing switch driving shaft hole 336 for installing the auxiliary opening and closing switch. The auxiliary opening and closing switch driving shaft hole 336 is adapted to the auxiliary opening and closing switch transmission shaft 31.

[0054] The auxiliary opening and closing drive roller 335 protrudes vertically from the plate body of the auxiliary opening and closing drive member 32. The auxiliary opening and closing switch closing groove 331, the auxiliary opening and closing switch opening groove 332, the auxiliary opening and closing switch limiting hook 333 and the auxiliary opening and closing switch closing limiting groove 334 are all arranged on the same side of the auxiliary opening and closing switch driving shaft hole 336, and the auxiliary opening and closing switch drive roller 335 is arranged on the other side of the auxiliary opening and closing switch driving shaft hole 336; the auxiliary opening and closing switch closing groove 331, the auxiliary opening and closing switch opening groove 332, the auxiliary opening and closing switch closing limiting groove 334 and the auxiliary opening and closing switch limiting hook 333 are arranged in sequence at the outer edge of the auxiliary opening and closing drive member 32.

[0055] In this embodiment, the auxiliary opening and closing pusher 325 is a cylinder vertically protruding from the plate body of the auxiliary opening and closing positioning member 32. The auxiliary opening and closing closing groove 331 and the auxiliary opening and closing opening groove 332 are both adapted to the auxiliary opening and closing pusher 325.

[0056] See Figure 2 As shown, the auxiliary opening and closing switch closing positioning recess 321, the auxiliary opening and closing switch opening positioning recess 322 and the auxiliary opening and closing switch closing limiting groove 334 are all adapted to the auxiliary opening and closing switch positioning stud 34. When the present embodiment is in the auxiliary opening and closing switch opening state, the auxiliary opening and closing switch opening positioning recess 322 abuts against the auxiliary opening and closing switch positioning stud 34. When the present embodiment is in the auxiliary opening and closing switch closing state, the auxiliary opening and closing switch closing positioning recess 321 and the auxiliary opening and closing switch closing limiting groove 334 abut against the auxiliary opening and closing switch positioning stud 34.

[0057] In this embodiment, the auxiliary opening and closing pusher 325 is a cylinder vertically protruding from the plate body of the auxiliary opening and closing positioning member 32. The auxiliary opening and closing closing groove 331 and the auxiliary opening and closing opening groove 332 are both adapted to the auxiliary opening and closing pusher 325.

[0058] The auxiliary opening and closing switch limiting assembly 35 and the auxiliary opening and closing switch driving member 33 can be hooked and locked with each other to form a limiting fit to prevent the main opening and closing switch driving member from continuing to rotate; the auxiliary opening and closing switch limiting assembly 35 can be pushed away from the auxiliary opening and closing switch driving member 33 by the auxiliary opening and closing switch positioning member 32 and unlocked.

[0059] See Figure 2As shown, the auxiliary opening and closing switch limiting assembly 35 includes an auxiliary opening and closing switch limiting pawl 351 rotatably arranged on the supporting frame 1, an auxiliary opening and closing switch limiting circular wheel 352 rotatably arranged on the auxiliary opening and closing switch limiting pawl 351, an auxiliary opening and closing switch torsion spring 353 and an auxiliary opening and closing switch limiting rotating shaft 354 for providing a reset elastic force for the auxiliary opening and closing switch limiting pawl 351; in this embodiment, the middle end of the auxiliary opening and closing switch torsion spring 353 is sleeved on the auxiliary opening and closing switch limiting rotating shaft 354, one end of the auxiliary opening and closing switch torsion spring 353 is hooked on the supporting frame 1, and the other end of the auxiliary opening and closing switch torsion spring 353 is hooked on the auxiliary opening and closing switch limiting pawl 351.

[0060] The auxiliary opening and closing switch limiting pawl 351 is rotatably set on the supporting frame 1 through the auxiliary opening and closing switch limiting rotating shaft 354, and the auxiliary opening and closing switch limiting pawl 351 is provided with an auxiliary opening and closing switch pawl hook 3511 adapted to the auxiliary opening and closing switch limiting hook 333; the auxiliary opening and closing switch limiting circular wheel 352 is rotatably set on the auxiliary opening and closing switch limiting pawl 351, and is located between the auxiliary opening and closing switch limiting rotating shaft 354 and the auxiliary opening and closing switch pawl hook 3511. Under the elastic force of the auxiliary opening and closing torsion spring 353, the auxiliary opening and closing limit pawl 351, the auxiliary opening and closing claw hook 3511 can be hooked and locked with the auxiliary opening and closing limit hook 333 rotated to the preset position to form a limit cooperation; the auxiliary opening and closing closing push-off part 323 and the auxiliary opening and closing opening push-off part 324 can each push the auxiliary opening and closing limit circular wheel 352 when they are rotated to the preset position, driving the auxiliary opening and closing claw hook 3511 to rotate a certain angle around the auxiliary opening and closing limit rotating shaft 354, and the auxiliary opening and closing claw hook 3511 moves away from the auxiliary opening and closing limit hook 233, so that the auxiliary opening and closing claw hook 3511 is disengaged from the auxiliary opening and closing limit hook 333 and unlocked.

[0061] In this embodiment, a gap is left between the auxiliary opening and closing switch positioning member 32 and the auxiliary opening and closing switch driving member 33, and there is also a height difference between the auxiliary opening and closing switch limiting circular wheel 352 and the auxiliary opening and closing switch claw hook 3511. Therefore, the auxiliary opening and closing switch closing push-off portion 323 and the auxiliary opening and closing switch opening push-off portion 324 will only push away the auxiliary opening and closing switch limiting circular wheel 352 during the rotation of the auxiliary opening and closing switch positioning member 32, and will not contact the auxiliary opening and closing switch claw hook 3511; similarly, the auxiliary opening and closing switch limiting hook 333 will only hook and lock with the auxiliary opening and closing switch claw hook 3511 during the rotation of the auxiliary opening and closing switch driving member, and will not contact the auxiliary opening and closing switch limiting circular wheel 352. That is, the auxiliary opening and closing switch closing push-off portion 323, the auxiliary opening and closing switch opening push-off portion 324 and the auxiliary opening and closing switch limiting circular wheel 352 are on the same working surface, the auxiliary opening and closing switch claw hook 3511 and the auxiliary opening and closing switch limiting hook 333 are on another working surface, and the two working surfaces are different surfaces.

[0062] See Figure 2 and Figure 8As shown, the spring assembly 5 includes a switch-on / off spring 51, a positioning pin 52, a base 53 and a slide bar 54; the base 53 is provided with a positioning slide hole along the extension direction of the spring; the two ends of the switch-on / off spring 51 are respectively connected to the main switch-on / off positioning member 22 and the auxiliary switch-on / off positioning member 32. The positioning pin 52 is fixedly arranged on the main switch-on / off fixing member, the base 53 is fixedly arranged on the auxiliary switch-on / off fixing member, one end of the slide bar 54 is connected to the positioning pin 52, and the other end of the slide bar 54 is located in the positioning slide hole, the switch-on / off spring 51 is sleeved on the slide bar 54, and the two ends of the switch-on / off spring 51 are respectively connected to the positioning pin 52 and the base 53.

[0063] See Figure 7 As shown, the linkage assembly 6 includes a linkage plate 61 and a linkage plate rotating shaft 62. The linkage plate 61 is rotatably arranged on the support frame 1 through the rotating plate rotating shaft. The linkage plate 61 is symmetrically provided with a main opening and closing switch rail groove 63 and an auxiliary opening and closing switch rail groove 64. The main opening and closing switch driving roller 235 is located in the main opening and closing switch rail groove 63, and the auxiliary opening and closing switch driving roller 335 is located in the auxiliary opening and closing switch rail groove 64. The linkage plate 61 is provided with a linkage plate 61 shaft hole between the main opening and closing switch rail groove 63 and the auxiliary opening and closing switch rail groove 64, and the linkage plate rotating shaft 62 is fixedly arranged in the linkage plate shaft hole 65; the main opening and closing switch rail groove 63 is composed of an arc-shaped slide groove 1 631 and a linear transmission groove 1 632, and the auxiliary opening and closing switch rail groove 64 is composed of an arc-shaped slide groove 2 641 and a linear transmission groove 2 642; the slide groove 1 631 and the slide groove 2 641 are symmetrically arranged, and the transmission groove 1 632 and the transmission groove 2 642 are symmetrically arranged; When the main opening and closing switch driving roller 235 reciprocates in the slide groove 1 631, it does not drive the groove wall of the slide groove 1. When the main opening and closing switch driving roller reciprocates in the transmission groove 1 632, it will drive the groove wall of the transmission groove 1, driving the linkage plate 61 to reciprocate; when the auxiliary opening and closing switch driving roller 335 reciprocates in the slide groove 2 61, it does not drive the groove wall of the slide groove 2. When the auxiliary opening and closing switch driving roller 335 reciprocates in the transmission groove 2 642, it will drive the groove wall of the transmission groove 2, driving the linkage plate 61 to reciprocate.

[0064] See Figure 2As shown, this embodiment also includes a main opening and closing switch transmission mechanism 4 for driving the main opening and closing switch transmission shaft 21 to rotate back and forth, and the main opening and closing switch transmission mechanism 4 includes a main opening and closing switch driving shaft 41 rotatably arranged on the support frame 1, a main opening and closing switch driving gear 42 fixedly arranged on the main opening and closing switch driving shaft 41, a main opening and closing switch passive gear 43 fixedly arranged on the main opening and closing switch transmission shaft 21, and a main opening and closing switch transmission set chain 44 connecting the main opening and closing switch driving gear 42 and the main opening and closing switch passive gear 43. The main opening and closing switch driving shaft 41 can be rotated by the user through the opening and closing switch handle, and then the main opening and closing switch transmission shaft 21 is driven to rotate back and forth through the main opening and closing switch driving gear 42, the main opening and closing switch transmission set chain 44, and the main opening and closing switch passive gear 43.

[0065] See Figure 2 As shown, the present embodiment further includes a secondary opening and closing switch transmission mechanism 7 for driving the secondary opening and closing switch transmission shaft 31 to rotate back and forth, and the secondary opening and closing switch transmission mechanism 7 includes a secondary opening and closing switch driving shaft 71 rotatably arranged on the support frame 1, a secondary opening and closing switch driving gear 72 fixedly arranged on the secondary opening and closing switch driving shaft 71, a secondary opening and closing switch passive gear 73 fixedly arranged on the secondary opening and closing switch transmission shaft 31, and a secondary opening and closing switch transmission sleeve chain 74 connecting the secondary opening and closing switch driving gear 72 and the secondary opening and closing switch passive gear 73. The secondary opening and closing switch driving shaft 71 can be rotated by the user through the opening and closing switch handle, and then the secondary opening and closing switch transmission shaft 31 is driven to rotate back and forth through the secondary opening and closing switch driving gear 72, the secondary opening and closing switch transmission sleeve chain 74, and the secondary opening and closing switch passive gear 73.

[0066] In this embodiment, see Figure 2 As shown, the main opening and closing transmission shaft 21 is along Figure 2 When the main switch is closed, the main switch transmission shaft 21 rotates clockwise. Figure 2 When the counterclockwise rotation of the main opening and closing switch is performed, the auxiliary opening and closing switch transmission shaft 31 is rotated along Figure 2 When the counterclockwise rotation of the auxiliary switch is performed, the auxiliary switch closing drive shaft 31 moves along Figure 2 When it rotates clockwise, the auxiliary switch closes and opens.

[0067] In this embodiment, when the main opening and closing switch is in the open state and the auxiliary opening and closing switch is in the open state, the main opening and closing switch component 2 and the auxiliary opening and closing switch component 3 are symmetrically arranged. When the main opening and closing switch is closed and the main opening and closing switch is opened, only the main opening and closing switch component 2 is actuated, and the auxiliary opening and closing switch component 3 is not actuated; when the auxiliary opening and closing switch is closed and the auxiliary opening and closing switch is opened, only the auxiliary opening and closing switch component 3 is actuated, and the main opening and closing switch component 2 is not actuated.

[0068] See Fig.16As shown, the present embodiment is also provided with a protective opening mechanism 8, which includes a metal tube 81 fixedly arranged on the support frame 1, a high-temperature expansion member 82 arranged at one end of the inner hole 811 of the metal tube, a rigid piston 83 that can slide in the inner hole of the metal tube, a sealing cap 84 with a central through hole 841 for sealing the opening of the metal tube, a spring 85 for providing resistance for the rigid piston, and a linkage gear 86 coaxially linked with the main opening and closing driving shaft 41; the rigid piston 83 is provided with a plug column 831 extending out of the metal tube 81 and passing through the central through hole 841, and the plug column is provided with a linear rack 832 adapted to the linkage gear 86; the spring 85 is sleeved on the plug column 831, and the two ends of the spring 85 are respectively abutted on the rigid piston 83 and the sealing cap 84, and the spring 85 is selected to be a spring with a smaller elastic force, and it is only necessary to abut the rigid piston 83 on the high-temperature expansion member 82.

[0069] The high temperature expansion member 82 is made of natural expanded perlite, and its expansion coefficient is about 15 times. Under normal circumstances, there is a gap between the linear rack 832 and the linkage gear 86, so the linear rack 832 will not affect the coaxial linkage of the linkage gear 86 and the main opening and closing driving shaft 41; when this embodiment is in a high temperature environment, that is, in the case of a sudden fire, the high temperature expansion member 82 expands, pushing the rigid piston 83 and the plug 831 outward, and then driving the linkage gear 86 to rotate, that is, driving the main opening and closing driving shaft 41 to force the opening and disconnecting of the circuit.

[0070] The working process and working principle of this embodiment are as follows.

[0071] First, Figures 8 to 13 The main switch closing process of this embodiment is demonstrated.

[0072] See Figure 8 and Fig. 9 As shown, the state and Figure 2 The states shown are consistent, that is, the main switch is in the open state, that is, it is in the main switch closing starting state.

[0073] At this time, under the elastic force of the closing and opening spring 51, the main closing and opening positioner 22 and the auxiliary closing and opening positioner 32, the main closing and opening positioner 222 abuts against the lower part of the main closing and opening positioner stud 24, and the auxiliary closing and opening positioner 322 abuts against the auxiliary closing and opening positioner stud 34. The main closing and opening claw hook 2511 and the main closing and opening limit hook 233 are mutually locked to form a limit fit, and the auxiliary closing and opening claw hook 3511 and the auxiliary closing and opening limit hook 333 are mutually locked to form a limit fit. The main closing and opening pusher 225 is located in the main closing and opening groove 232, and the main closing and opening drive roller 235 is located at the junction of the slide slot 1 631 and the transmission slot 1 632. The auxiliary opening and closing switch pushing portion 325 is located in the auxiliary opening and closing switch opening groove 332 , and the auxiliary opening and closing switch driving roller 335 is located at the junction of the second sliding groove 641 and the second transmission groove 642 .

[0074] See Fig.10 and Fig.11 As shown, at this time, the present embodiment is in the middle state of the main opening and closing switch, and the opening and closing spring 51 reaches the dead point state during the main opening and closing switch closing process.

[0075] when Figure 8 The main closing and opening transmission shaft 21 in Figure 8 After the main opening and closing switch rotates clockwise, the main opening and closing switch positioning member 22 fixed on the main opening and closing switch transmission shaft 21 starts to rotate, and the main opening and closing switch pushing member 225 also rotates accordingly. Since the main opening and closing switch driving member 23 is rotatably arranged on the main opening and closing switch transmission shaft 21, and the main opening and closing switch limiting hook 233 is locked and limited by the main opening and closing switch claw hook 2511 at this time, the main opening and closing switch driving member 23 is stationary at this time and does not rotate together with the main opening and closing switch positioning member 22.

[0076] See Fig.10 As shown, the main closing and opening positioning member 22 and the spring assembly 5 have been Figure 8 Move the displayed position to Fig.10 Position shown.

[0077] At this time, the switch spring 51 has been compressed and shortened to store energy, and has been compressed to the shortest position, that is, to the dead point position. The main switch closing push-off portion 223 pushes the main switch limit circular wheel 252 outward, so that the main switch claw hook 2511 is lifted in the direction away from the main switch limit hook 233, and is no longer locked with the main switch limit hook 233, thereby no longer hindering the rotation of the main switch drive 23. The main switch pusher 225 also rotates into the main switch closing groove 231 of the main switch drive 23. When the main switch positioning member 22 continues to rotate, the main switch drive 23 and its main switch drive roller 235 can be pushed to rotate together through the main switch pusher 225. 。

[0078] See Fig.12 and 13 As shown, this embodiment is in the main switch closing state, that is, the main switch closing operation is completed.

[0079] from Fig.10 The status shown is Fig.12 During the state transition process shown, since the opening and closing spring 51 has passed the dead point, the opening and closing spring 51 quickly releases energy and extends, driving the main opening and closing positioning member 22 and the main opening and closing driving member 23 to rotate rapidly, until the main opening and closing closing positioning recess 221 and the main opening and closing closing limit groove 234 are both pressed against the upper part of the main opening and closing positioning stud 24, thereby completing the rapid closing process.

[0080] from Fig.10 Starting from the state shown, when the main opening and closing drive member 23 rotates, the main opening and closing drive roller 235 is driven to rotate. Fig.10 The position shown moves to the transmission groove 1 632, and starts to drive the linkage plate 61 to rotate by pushing the groove wall of the transmission groove 1 632; the auxiliary opening and closing switch driving roller 335 is stationary, but because the linkage plate 61 starts to drive the slide groove 2 641 to rotate, the auxiliary opening and closing switch driving roller 335 is in the slide groove 2 641.

[0081] See Fig.12 and Fig.13 As shown, at this time, the main opening and closing positioning member 22, the main opening and closing driving member 23, the spring assembly 5, and the linkage plate 61 have been Fig.10 The positions shown are moved to Fig.12 Position shown.

[0082] See Fig.12 As shown, at this time, under the elastic force of the opening and closing spring 51, the main opening and closing positioning recess 221 of the main opening and closing positioning member 22 and the main opening and closing closing limit groove 234 of the main opening and closing driving member 23 are both pressed against the upper part of the main opening and closing positioning stud 24.

[0083] During the entire main opening and closing process, the auxiliary opening and closing assembly 3 does not move.

[0084] second, Figures 12 to 15 , Fig. 9 and Fig.10 The main closing and opening process of this embodiment is demonstrated.

[0085] See Fig.12 and Fig.13 As shown, this embodiment is in the main closing state, that is, in the main closing state, and the main closing operation begins. Fig.12The main opening and closing switch positioning member 22 starts to rotate counterclockwise, driving the main opening and closing switch positioning member 22 to rotate synchronously. Since the main opening and closing switch pushing member 225 does not push the main opening and closing switch driving member 23 at this time, the main opening and closing switch driving member 23 is stationary at this time.

[0086] See Fig.14 and Fig.15 As shown, this embodiment is in the intermediate state between the main opening and closing of the switch.

[0087] At this time, the main closing and opening positioning member 22 has moved counterclockwise from Fig.12 Rotate the position shown to Fig.14 The opening and closing spring 51 is compressed to the shortest position, that is, it reaches the dead point position, and the opening and closing spring 51 stores the maximum energy. After that, when the main opening and closing positioning member 22 continues to rotate, the opening and closing spring 51 will quickly release energy and extend, driving the main opening and closing positioning member 22 to rotate quickly, completing the rapid main opening and closing action.

[0088] See Fig.15 As shown, at this time, the main opening and closing switch pusher 225 has rotated to the main opening and closing switch opening groove 232 along with the main opening and closing switch positioning member 22, and thereafter the main opening and closing switch positioning member 22 continues to rotate, and the main opening and closing switch pusher 225 will drive the main opening and closing switch driving member 23 to rotate by pressing the main opening and closing switch opening groove 232. When the main opening and closing switch driving member 23 rotates, the main opening and closing switch driving roller 235 also rotates accordingly. Since the main opening and closing switch driving roller 235 is located in the transmission groove 1 632 at this time, the main opening and closing switch driving roller 235 drives the linkage plate 61 to rotate by pressing the groove wall of the transmission groove 1 632.

[0089] See Figure 8 and Fig. 9 As shown, this embodiment is in the main opening and closing state, that is, the state of completing the main opening and closing operation.

[0090] See Figure 8 and Fig. 9 As shown, at this time, the main opening and closing positioning member 22, the main opening and closing driving member 23, the spring assembly 5, and the linkage plate 61 have all been moved from Fig.14 The displayed state moves to Figure 8 Status shown.

[0091] from Fig.14 The status shown is Figure 8 During the state transition process shown, since the opening and closing spring 51 has passed the dead point, the opening and closing spring 51 quickly releases energy and extends, driving the main opening and closing positioning member 22 and the main opening and closing driving member 23 to rotate rapidly, until the main opening and closing positioning recess 222 of the main opening and closing switch is pressed against the upper part of the main opening and closing switch positioning stud 24, at which time the main opening and closing switch claw hook 2511 and the auxiliary opening and closing switch claw hook 3511 are hooked again to limit the position.

[0092] from Fig.14 The status shown starts at Figure 8 In the state shown, when the main opening and closing switch driving member 23 rotates, the main opening and closing switch driving roller 235 is driven to rotate, and the main opening and closing switch driving roller 235 moves from the transmission groove 632 to the junction of the slide groove 631 and the transmission groove 632. During this process, the main opening and closing switch driving roller 235 drives the linkage plate 61 to rotate by pushing the groove wall of the transmission groove 632; the auxiliary opening and closing switch driving roller 335 is stationary, but because the linkage plate 61 starts to drive the slide groove 641 to rotate, the auxiliary opening and closing switch driving roller 335 is changed from being in the slide groove 641 to being at the junction of the slide groove 641 and the transmission groove 642.

[0093] During the entire main opening and closing process, the auxiliary opening and closing assembly 3 is stationary and does not move.

[0094] Third, the closing process of the secondary branch circuit breaker.

[0095] In this embodiment, when the main opening and closing switch is in the open state and the auxiliary opening and closing switch is in the open state, the main opening and closing switch assembly 2 and the auxiliary opening and closing switch assembly 3 are symmetrically arranged. Figure 2 As shown, the main opening and closing switch positioning member 22 and the auxiliary opening and closing switch positioning member 32 are symmetrically arranged, the main opening and closing switch driving member and the auxiliary opening and closing switch driving member are symmetrically arranged, and the main opening and closing switch limiting assembly 25 and the auxiliary opening and closing switch limiting assembly 35 are symmetrically arranged; and due to the ingenious structural design of the linkage plate 61, when the main opening and closing switch is closed and the main opening and closing switch is opened, only the main opening and closing switch assembly 2 is actuated, and the auxiliary opening and closing switch assembly 3 is not actuated; when the auxiliary opening and closing switch is closed and the auxiliary opening and closing switch is opened, only the auxiliary opening and closing switch assembly 3 is actuated, and the main opening and closing switch assembly 2 is not actuated.

[0096] Therefore, the closing process of the auxiliary switch in this embodiment is the same as the above-mentioned main switch closing process in working principle, except that in the closing process of the auxiliary switch, the movement direction of the auxiliary switch assembly and the linkage plate is opposite to the movement direction of the main switch assembly and the linkage plate in the closing process of the main switch.

[0097] See Figure 2 As shown, this embodiment is in the auxiliary opening and closing state, that is, in the auxiliary opening and closing starting state.

[0098] At this time, the auxiliary opening and closing driving shaft 71 is driven by the user through the opening and closing handle, thereby driving the auxiliary opening and closing transmission shaft 31 along the Figure 2 The counterclockwise rotation starts the closing action of the auxiliary switch.

[0099] In the next intermediate state of the auxiliary opening and closing switch, the auxiliary opening and closing switch closing push-off portion 323 of the auxiliary opening and closing switch positioning member 32 pushes away the auxiliary opening and closing switch driving roller 335, and the auxiliary opening and closing switch claw hook 3511 is away from the auxiliary opening and closing switch limit hook 333, thereby releasing the hook lock limit of the two. The opening and closing switch spring 51 is also compressed to the shortest state.

[0100] After that, the auxiliary opening and closing positioner 32 continues to rotate, and the auxiliary opening and closing pusher 325 pushes the auxiliary opening and closing drive 33 to rotate. Since the opening and closing spring 51 has passed the dead point, the opening and closing spring 51 quickly releases energy and extends, and can quickly drive the auxiliary opening and closing positioner 32 and the auxiliary opening and closing drive 33 to rotate, completing the auxiliary opening and closing fast opening action, and reaching the auxiliary opening and closing state.

[0101] In the auxiliary opening and closing switch closed state, under the elastic force of the opening and closing switch spring 51 , the auxiliary opening and closing switch closing positioning recess 321 and the auxiliary opening and closing switch closing limit groove 334 are pressed against the upper part of the auxiliary opening and closing switch positioning stud 34 .

[0102] Fourth, the process of closing and opening the secondary switch.

[0103] Starting from the auxiliary opening and closing switch closed state, the auxiliary opening and closing switch transmission shaft 31 rotates in the opposite direction, driving the auxiliary opening and closing switch positioning member 32 to rotate a certain angle until the opening and closing switch spring 51 reaches the dead point state, that is, is compressed to the shortest state, that is, the auxiliary opening and closing switch is in the intermediate state.

[0104] Starting from the middle state of the auxiliary opening and closing switch, when the auxiliary opening and closing switch positioning member 32 rotates, the auxiliary opening and closing switch driving member 33 can be pushed to rotate synchronously through the auxiliary opening and closing switch pushing part 325. Since the opening and closing switch spring 51 passes the dead point, it can quickly drive the auxiliary opening and closing switch positioning member 32 and the auxiliary opening and closing switch driving member 33 to rotate quickly, so the rapid auxiliary opening and closing switch opening action can be completed.

[0105] When the auxiliary opening and closing switch is in the opening state, under the elastic force of the opening and closing spring 51, the auxiliary opening and closing switch opening positioning recess 322 abuts against the lower part of the auxiliary opening and closing switch positioning stud 34, and the auxiliary opening and closing switch claw hook 3511 and the auxiliary opening and closing switch limiting hook 333 are locked with each other again.

[0106] It can be seen that in this embodiment, the main opening and closing operation and the auxiliary opening and closing operation can be completed independently without affecting each other.

[0107] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the protection scope of the invention.

Claims

1. A switch opening and closing operating mechanism, comprising a support frame (1) and an operating unit arranged on the support frame (1); characterized in that: The operating unit comprises a main opening and closing assembly (2), a secondary opening and closing assembly (3), a spring assembly (5) and a linkage assembly (6); The main opening and closing switch assembly (2) comprises a main opening and closing switch transmission shaft (21); The auxiliary opening and closing switch assembly (3) comprises an auxiliary opening and closing switch transmission shaft (31); It also includes a main opening and closing switch transmission mechanism (4) for driving the main opening and closing switch transmission shaft (21) to reciprocate, the main opening and closing switch transmission mechanism (4) comprising a main opening and closing switch driving shaft (41) rotatably arranged on the support frame (1), a main opening and closing switch driving gear (42) fixedly arranged on the main opening and closing switch driving shaft (41), a main opening and closing switch passive gear (43) fixedly arranged on the main opening and closing switch transmission shaft (21), and a main opening and closing switch transmission chain (44) connecting the main opening and closing switch driving gear (42) and the main opening and closing switch passive gear (43); It also includes an auxiliary opening and closing switch transmission mechanism (7) for driving the auxiliary opening and closing switch transmission shaft (31) to reciprocate, the auxiliary opening and closing switch transmission mechanism (7) comprising an auxiliary opening and closing switch driving shaft (71) rotatably arranged on the support frame (1), an auxiliary opening and closing switch driving gear (72) fixedly arranged on the auxiliary opening and closing switch driving shaft (71), an auxiliary opening and closing switch passive gear (73) fixedly arranged on the auxiliary opening and closing switch transmission shaft (31), and an auxiliary opening and closing switch transmission chain (74) connecting the auxiliary opening and closing switch driving gear (72) and the auxiliary opening and closing switch passive gear (73); The main opening and closing switch assembly (2) further comprises a main opening and closing switch positioning member (22), a main opening and closing switch driving member (23), a main opening and closing switch positioning stud (24) and a main opening and closing switch limiting member (25); the auxiliary opening and closing switch assembly (3) further comprises an auxiliary opening and closing switch positioning member (32), an auxiliary opening and closing switch driving member (33), an auxiliary opening and closing switch positioning stud (34) and an auxiliary opening and closing switch limiting member (35); the spring assembly (5) comprises only one opening and closing switch spring (51), the opening and closing switch spring (51) having a mid-inflection point position for transitioning from an energy storage state to an energy release state; the spring assembly ( 5) also includes a positioning pin (52), a base (53) and a slide rod (54); the base (53) is provided with a positioning slide hole along the extension direction of the spring; the positioning pin (52) is fixedly arranged on the main opening and closing positioning member, the base (53) is fixedly arranged on the auxiliary opening and closing positioning member, one end of the slide rod (54) is connected to the positioning pin (52), and the other end of the slide rod (54) is located in the positioning slide hole, the opening and closing spring (51) is sleeved on the slide rod (54), and the two ends of the opening and closing spring (51) are respectively fixedly connected to the positioning pin (52) and the base (53); The main opening and closing switch positioning member (22) is provided with a main opening and closing switch closing positioning recess (221), a main opening and closing switch opening positioning recess (222), a main opening and closing switch closing push-off portion (223), a main opening and closing switch opening push-off portion (224), a main opening and closing switch pushing portion (225), and a main opening and closing switch positioning shaft hole (226) for installing the main opening and closing switch positioning shaft hole (226); the main opening and closing switch positioning shaft hole (226) is adapted to the main opening and closing switch transmission shaft (21); the main opening and closing switch driving member (23) is provided with a main opening and closing switch closing groove ( 231), a main opening and closing switch opening groove (232), a main opening and closing switch limiting hook (233), a main opening and closing switch closing limiting groove (234), a main opening and closing switch driving roller (235), and a main opening and closing switch driving shaft hole (236) for mounting the main opening and closing switch; the main opening and closing switch closing push-off portion (223), the main opening and closing switch closing positioning recess (221), the main opening and closing switch opening positioning recess (222), and the main opening and closing switch opening push-off portion (224) are sequentially arranged at the same outer edge of the main opening and closing switch positioning member; The main opening and closing switch limiting assembly (25) comprises a main opening and closing switch limiting pawl (251) rotatably arranged on the support frame (1), a main opening and closing switch limiting circular wheel (252) rotatably arranged on the main opening and closing switch limiting pawl (251), a main opening and closing switch torsion spring (253) for providing a reset elastic force for the main opening and closing switch limiting pawl (251), and a main opening and closing switch limiting rotating shaft (254); the middle end of the main opening and closing switch torsion spring (253) is sleeved on the main opening and closing switch limiting rotating shaft (254), one end of the main opening and closing switch torsion spring (253) is hooked on the support frame (1), and the other end of the main opening and closing switch torsion spring (253) is hooked on the main opening and closing switch limiting pawl (251); The main opening and closing switch limit pawl (251) is rotatably arranged on the support frame (1) via the main opening and closing switch limit rotating shaft (254); the main opening and closing switch limit pawl (251) is provided with a main opening and closing switch claw hook (2511) adapted to the main opening and closing switch limit hook (233); the main opening and closing switch limit circular wheel (252) is rotatably arranged on the main opening and closing switch limit pawl (251) and is located between the main opening and closing switch limit rotating shaft (254) and the main opening and closing switch claw hook (2511); the main opening and closing switch limit pawl (251) is rotatably arranged under the elastic force of the main opening and closing switch torsion spring (253), the main opening and closing switch claw hook (2511) 11) can be mutually locked with the main opening and closing switch limit hook (233) rotated to a preset position to form a limit match; when the main opening and closing switch closing push-off portion (223) and the main opening and closing switch opening push-off portion (224) are each rotated to the preset position, they can push the main opening and closing switch limit circular wheel (252), drive the main opening and closing switch claw hook (2511) to rotate around the main opening and closing switch limit rotating shaft (254) to a certain angle, and the main opening and closing switch claw hook (2511) moves away from the main opening and closing switch limit hook (233), so that the main opening and closing switch claw hook (2511) is decoupled from the main opening and closing switch limit hook (233) and unlocked.

2. The opening and closing operating mechanism according to claim 1, characterized in that: The support frame (1) comprises a fixing plate (11), a first supporting plate (12), a second supporting plate (13) and a plurality of supporting columns (14); the supporting columns (14) fixedly connect the fixing plate (11), the first supporting plate (12) and the second supporting plate (13) to form the support frame (1).

3. The opening and closing operating mechanism according to claim 2, characterized in that: The operating unit is arranged between the first supporting plate (12) and the second supporting plate (13).

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