An air-insulated spring-operated quick-break ring main unit

Abstract

The invention discloses an air-insulated spring-operated quick-break type ring network cabinet, comprising a cabinet body, a main switch, a spring circuit breaker operating device and an isolation operating mechanism; the isolation operating mechanism comprises an isolation operating shaft and a circuit breaker / isolation interlocking assembly; the circuit breaker / isolation interlocking assembly comprises a circuit breaker / isolation interlocking connecting rod, a circuit breaker / isolation interlocking moving plate, a circuit breaker / isolation interlocking blocking piece and a circuit breaker / isolation interlocking fixing plate; an interlocking mounting portion is provided on a closing / opening transmission fork of the closing / opening transmission mechanism, and the closing / opening transmission fork is connected to the transmission end of the circuit breaker switch through a closing / opening transmission shaft; one end of the circuit breaker / isolation interlocking connecting rod is hinged on the interlocking mounting portion, and the other end of the circuit breaker / isolation interlocking connecting rod is connected to the oblong hole of the circuit breaker / isolation interlocking moving plate; when the closing / opening transmission fork is in a closed state, the circuit breaker / isolation interlocking blocking piece blocks the front of the end of the isolation operating shaft.

Description

Technical Field

[0001] The invention relates to a ring network cabinet, in particular to an air-insulated elastic quick-break ring network cabinet. Background Art

[0002] In the power supply network system, in order to improve the reliability of power supply, the power supply network is usually connected into a ring so that users can get power from two directions. This power supply method is referred to as ring network power supply. The ring network cabinet in the ring network power supply equipment is the core switch equipment. The ring network cabinet can be divided into air-type ring network cabinet, SF6 gas-insulated ring network cabinet, solid-insulated ring network cabinet, etc. according to the different insulation media.

[0003] The existing ring network cabinet generally includes a circuit breaker and a disconnector, among which the disconnector is provided with a disconnector main shaft, the cross section of which is a regular hexagon, and an operating handle is provided outside the disconnector main shaft. The panel of the ring network cabinet is also provided with an disconnector operating hole for the operating handle to extend into, and the disconnector operating hole is located directly in front of the front end of the disconnector main shaft. When the working state of the disconnector needs to be changed, the operating handle passes through the panel of the ring network cabinet through the operating hole and is sleeved outside the hexagonal disconnector main shaft, so that the disconnector main shaft can be rotated and controlled; when the disconnector main shaft rotates to the closing position, the disconnector is closed, and when the disconnector main shaft rotates to the opening position, the disconnector is opened. The circuit breaker is provided with a circuit breaker main shaft, and when the circuit breaker main shaft rotates to the closing position, the circuit breaker is closed, and when the circuit breaker main shaft rotates to the opening position, the circuit breaker is opened.

[0004] According to the requirements of "five-protection interlocking", the following interlocking relationship must be formed between the circuit breaker and the isolating switch: when the circuit breaker is in the closed state, it is forbidden to operate the isolating switch. In the prior art, in order to achieve the above interlocking function, various interlocking structures are designed, including mechanical and electronic structures. However, the existing interlocking mechanism between the circuit breaker and the isolating switch of the ring main unit is not only complex in structure, but also has poor reliability of interlocking relationship, and there is a possibility of misoperation, which poses a safety hazard. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned problems and provide an air-insulated spring-operated quick-break ring network cabinet, which has good interlocking reliability. When the circuit breaker is closed, the disconnector cannot be opened or closed, reducing safety hazards.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] An air-insulated spring-operated quick-break ring main unit, comprising a cabinet body and a main switch, a spring circuit breaker operating device, and an isolating operating mechanism arranged in the cabinet body;

[0008] The main switch includes a circuit breaker switch and an isolating switch;

[0009] The spring circuit breaker operating device comprises a mounting plate and a closing power mechanism, an opening power mechanism and a closing and opening transmission mechanism arranged on the mounting plate;

[0010] The isolation operating mechanism includes an isolation operating shaft and a circuit breaker / isolation interlocking assembly; the isolation operating shaft is connected to the isolation transmission shaft of the isolation switch through a transmission structure; the circuit breaker / isolation interlocking assembly includes a circuit breaker / isolation interlocking connecting rod, a circuit breaker / isolation interlocking moving plate, a circuit breaker / isolation interlocking baffle and a circuit breaker / isolation interlocking fixing plate; an interlocking mounting portion is provided on the closing and opening transmission fork of the closing and opening transmission mechanism, and the closing and opening transmission fork is connected to the transmission end of the circuit breaker switch through the closing and opening transmission shaft. ; One end of the circuit breaker / isolating interlocking connecting rod is hinged on the interlocking mounting portion, and the other end of the circuit breaker / isolating interlocking connecting rod is connected to the oblong hole of the circuit breaker / isolating interlocking moving plate; the circuit breaker / isolating interlocking moving plate is fixedly connected to the circuit breaker / isolating interlocking baffle, and the circuit breaker / isolating interlocking moving plate is connected to the circuit breaker / isolating interlocking fixed plate through a transverse sliding structure; when the closing and opening transmission fork is in the closed state, the circuit breaker / isolating interlocking baffle blocks the front of the end of the isolating operating shaft.

[0011] In a preferred embodiment of the present invention, the isolation operating mechanism further comprises an isolation / circuit breaker interlocking assembly, which comprises an isolation / circuit breaker interlocking baffle, an isolation / circuit breaker interlocking transmission plate, an interlocking spring, an isolation / circuit breaker interlocking moving plate and an isolation / circuit breaker interlocking wheel;

[0012] The isolating / circuit breaker interlocking baffle is fixedly arranged on the closing limit rod;

[0013] The isolating / circuit breaker interlocking transmission plate is connected to the mounting plate via a transverse sliding structure;

[0014] The two ends of the interlock spring are fixedly connected to the isolating / circuit breaker interlock transmission plate and the mounting plate;

[0015] One end of the isolating / circuit breaker interlocking movable plate is fixedly connected to the isolating / circuit breaker interlocking transmission plate, and the other end of the isolating / circuit breaker interlocking movable plate is provided with an isolating / circuit breaker guide hole for forking on the isolating operating shaft;

[0016] The isolating / circuit breaker interlocking wheel is arranged on the isolating operating shaft, and the isolating / circuit breaker interlocking wheel is provided with an isolating / circuit breaker transmission notch obtained by cutting off a part of the structure; the other end of the isolating / circuit breaker interlocking moving plate is provided with an isolating / circuit breaker interlocking pressing portion for abutting against the side surface of the isolating / circuit breaker interlocking wheel;

[0017] In the open state of the isolating switch, the top of the isolating / circuit breaker interlocking transmission plate presses in front of the isolating / circuit breaker interlocking baffle; the isolating / circuit breaker interlocking pressing portion presses on the side of the non-isolating / circuit breaker transmission notch of the isolating / circuit breaker interlocking wheel. By means of the above structure, the isolation operating shaft is rotated in the direction of closing, driving the isolation / circuit breaker interlocking wheel to rotate; when the isolation / circuit breaker transmission notch of the isolation / circuit breaker interlocking wheel rotates to the front of the isolation / circuit breaker interlocking pressing part of the isolation / circuit breaker interlocking moving plate, the interlocking spring releases the potential energy to drive the isolation / circuit breaker interlocking pressing part of the isolation / circuit breaker interlocking moving plate to enter the isolation / circuit breaker transmission notch and press on the side of the isolation / circuit breaker transmission notch, at which time the isolation / circuit breaker interlocking transmission plate and the isolation / circuit breaker interlocking moving plate move laterally, so that the isolation / circuit breaker interlocking transmission plate is away from the isolation / circuit breaker interlocking baffle, thereby releasing the restriction of the closing limit rod, so that the circuit breaker can be closed, so that the circuit breaker can only be closed and opened when the isolating switch is closed.

[0018] In a preferred embodiment of the present invention, the isolation operating mechanism further comprises an isolation / grounding interlocking assembly, and the isolation / grounding interlocking assembly comprises an isolation / grounding interlocking transmission plate and an isolation / grounding interlocking wheel;

[0019] The upper end and the lower end of the isolation / grounding interlock transmission plate are respectively provided with isolation / grounding guide holes, and the two isolation / grounding guide holes are respectively forked on the isolation operation shaft and the grounding operation shaft of the grounding mechanism;

[0020] The isolation / grounding interlocking wheels are provided with two and are respectively arranged on the isolation operating shaft and the grounding operating shaft. The isolation / grounding interlocking wheels are provided with an isolation / grounding transmission notch obtained by cutting off part of the structure; both ends of the isolation / grounding interlocking transmission plate are respectively provided with an isolation / grounding interlocking top pressure part for pressing against the side of the isolation / grounding interlocking wheel. Through the above structure, the grounding operating shaft is rotated in the direction of closing, and the isolation / grounding interlocking wheel on the grounding operating shaft drives the isolation / grounding interlocking transmission plate to move upward, so that the isolation / grounding interlocking top pressure part on the upper end of the isolation / grounding interlocking transmission plate enters the isolation / grounding transmission notch of the isolation / grounding interlocking wheel on the isolation operating shaft, thereby limiting it, causing the isolating switch to be unable to operate, so that the isolating switch can only be closed and opened when the grounding switch is open.

[0021] A preferred solution of the present invention is that an air insulation chamber, an operating chamber, a cable chamber and a pressure relief chamber are provided in the cabinet, wherein the operating chamber is located on one side of the air insulation chamber; the cable chamber and the pressure relief chamber are located below the air insulation chamber; the main switch is arranged in the air insulation chamber; and the spring circuit breaker operating device is arranged in the operating chamber.

[0022] A preferred embodiment of the present invention, wherein the circuit breaker switch is arranged above the isolating switch, and the circuit breaker switch comprises a pole, a one-way insulating mounting structure and a circuit breaker transmission structure; the upper end of the pole is connected to the circuit breaker transmission structure, and the lower end of the pole extends to the top of the isolating switch; the one-way insulating mounting structure comprises an insulating bottom plate, an insulating middle plate, a top plate and a support rod, and the insulating bottom plate, the insulating middle plate and the top plate are arranged in parallel from bottom to top in sequence; the support rods are provided with two groups, one group of which is vertically fixed between the insulating bottom plate and the insulating middle plate, and the other group of which is vertically fixed between the insulating middle plate and the top plate; the central positions of the insulating bottom plate, the insulating middle plate and the top plate are all provided with avoidance holes for installing the poles.

[0023] A preferred embodiment of the present invention, wherein the pole includes an isolating static contact, a vacuum arc extinguishing chamber, a flexible connection and an insulating pull rod; the isolating static contact, the vacuum arc extinguishing chamber, the flexible connection and the insulating pull rod are fixedly connected end to end in sequence from bottom to top; the top end of the insulating pull rod is connected to the circuit breaker transmission structure.

[0024] In a preferred embodiment of the present invention, the lower side of the insulating bottom plate is connected to a first insulating support side plate via a fixing plate, and the first insulating support side plate is fixedly connected to a side wall of the cabinet.

[0025] In a preferred embodiment of the present invention, the top plate is fixedly connected to the side wall of the cabinet.

[0026] In a preferred embodiment of the present invention, each group of support rods is provided with four support rods and are arranged in a rectangular shape, so that balanced and stable support can be provided.

[0027] In a preferred embodiment of the present invention, the closing power mechanism comprises a closing spring, a closing energy storage component, a closing limit component and a closing release component; the closing energy storage component comprises an energy storage transmission structure for transmitting the closing power to the closing spring in a rotational manner, and the rotation center of the energy storage transmission structure extends in a horizontal direction and is perpendicular to the mounting plate; the closing power is transmitted to the closing spring through the energy storage transmission structure; and the closing spring that has completed energy storage is locked through the closing limit component;

[0028] The rotation center of the closing and opening transmission mechanism is parallel to the rotation center of the energy storage transmission structure; the closing limit assembly is released by the closing release assembly, the closing spring releases the potential energy, and the closing power is transmitted to the circuit breaker switch through the closing and opening transmission mechanism;

[0029] The opening power mechanism includes an opening spring, an opening limit structure and an opening release assembly; during the closing operation, the opening spring stores energy, and the energy storage completion state is locked by the opening limit structure; during the opening operation, the opening limit structure is released by the opening release assembly, the opening spring pulls the closing and opening transmission mechanism, and the closing and opening transmission mechanism transmits the opening power to the circuit breaker switch.

[0030] A preferred solution of the present invention, wherein the circuit breaker transmission structure includes a circuit breaker transmission shaft, an eccentric transmission member and a connecting rod structure; the circuit breaker transmission shaft is rotatably connected to the top plate through a fixed bracket, and the circuit breaker transmission shaft is connected to the closing and opening transmission mechanism of the spring circuit breaker operating device through the connecting rod structure; the eccentric transmission member is fixedly arranged on the circuit breaker transmission shaft, and an arc-shaped transmission hole is provided on the eccentric transmission member, and the distances from the two ends of the arc-shaped transmission hole to the axis of the circuit breaker transmission shaft are not equal; the top end of the insulating pull rod of the pole can be movably connected to the arc-shaped transmission hole. Through the above structure, as the circuit breaker transmission shaft rotates forward and reversely, the insulating pull rod can be driven to rise or fall, so as to realize the opening or closing of the circuit breaker.

[0031] A preferred embodiment of the present invention, wherein the isolating switch includes an isolating knife switch, a knife switch mounting structure and an isolating transmission structure; the knife switch mounting structure includes a second insulating support side plate, an insulator and a mounting seat, the second insulating support side plate is fixedly arranged in the cabinet; the insulator is fixedly arranged on the second insulating support side plate; the mounting seat is fixedly arranged on the insulator; one end of the isolating knife switch is hinged on the mounting seat.

[0032] Furthermore, the isolation transmission structure includes an isolation transmission shaft and a swing assembly, the isolation transmission shaft is rotatably connected in the cabinet and connected to the isolation operating mechanism; the swing assembly includes a first swing arm and a second swing arm, one end of the first swing arm is fixedly connected to the isolation transmission shaft, and both ends of the second swing arm are respectively hinged on the other end of the first swing arm and the isolation knife switch.

[0033] A preferred solution of the present invention is that two mounting plates are provided and arranged vertically in parallel to provide balanced support for the closing power mechanism, the opening power mechanism, and the closing and opening transmission mechanism, thereby facilitating the horizontal layout of the closing power mechanism, the opening power mechanism, and the closing and opening transmission mechanism and reducing the vertical height.

[0034] In a preferred embodiment of the present invention, the closing energy storage assembly further comprises an energy storage motor, and an output shaft of the energy storage motor extends in a horizontal direction;

[0035] The energy storage transmission structure includes a transmission gear, an energy storage shaft and an energy storage eccentric frame; the transmission gear includes a first transmission gear and a second transmission gear; the first transmission gear is connected to the energy storage motor; the second transmission gear is meshed with the first transmission gear, and the second transmission gear is rotatably connected to the energy storage shaft; a transmission clutch structure is provided between the second transmission gear and the energy storage shaft; the energy storage shaft is rotatably connected to the mounting plate, and the axis of the energy storage shaft is parallel to the output shaft of the energy storage motor; the energy storage eccentric frame is fixedly arranged on the energy storage shaft; one end of the closing spring is rotatably connected to the mounting plate, and the other end of the closing spring is rotatably connected to the energy storage eccentric frame.

[0036] Furthermore, the transmission clutch structure includes a clutch wheel, a clutch claw and a limit separation member, the clutch wheel is fixedly arranged on the energy storage shaft, and a clutch slot is arranged on the side of the clutch wheel;

[0037] The clutch claw is rotatably arranged on the second transmission gear, and a torsion spring is arranged between the clutch claw and the second transmission gear; one end of the clutch claw is a clamping portion cooperating with the clutch clamping slot, and the other end of the clutch claw is a separation extrusion portion cooperating with the limit separation member;

[0038] One end of the limit separation piece is fixedly arranged on the mounting plate, and the other end of the limit separation piece extends into the rotation path of the separation extrusion portion of the clutch claw; when the separation extrusion portion of the clutch claw contacts the limit separation piece, the clamping portion withdraws from the clutch clamping slot and slides on the side of the clutch wheel, and at this time, the closing limit assembly is in a limited state.

[0039] In a preferred embodiment of the present invention, the closing power mechanism further comprises a closing cam for transmitting the power of the closing spring to the closing and opening transmission mechanism, and the closing cam is fixedly arranged on the energy storage shaft.

[0040] A preferred embodiment of the present invention, wherein the closing limit assembly includes a closing limit fork, a closing limit rod and a limit wheel; the closing limit fork is rotatably connected to the mounting plate, and the rotation center of the closing limit fork is parallel to the rotation center of the energy storage shaft; the closing limit fork is provided with a first pressing portion for supporting the limit wheel and a second pressing portion for supporting the closing limit rod; the closing limit rod is rotatably connected to the mounting plate, and the rotation center of the closing limit rod is parallel to the rotation center of the closing limit fork; the limit wheel is eccentrically arranged on the closing cam.

[0041] Furthermore, the closing release assembly includes a closing electromagnet and a closing release transmission plate, the telescopic rod of the closing electromagnet is located in front of the closing release transmission plate, and the closing release transmission plate is fixedly connected to the closing limit rod; the closing limit rod is provided with a closing avoidance groove for avoiding the second top pressure part.

[0042] In a preferred embodiment of the present invention, the closing and opening transmission mechanism comprises a closing and opening transmission shaft, a closing and opening transmission fork, and a closing cam for transmitting the power of the closing spring to the closing and opening transmission fork;

[0043] The closing and opening transmission shaft is rotatably connected to the mounting plate and is connected to the transmission end of the circuit breaker switch; the closing and opening transmission fork is fixedly arranged on the closing and opening transmission shaft, and the closing and opening transmission fork is provided with a closing transmission part, an opening transmission part and an opening energy storage mounting part; the closing transmission part is provided with a closing transmission wheel matched with the closing cam; the opening transmission part is provided with an opening transmission wheel; the closing cam is fixedly arranged on the energy storage rotating shaft.

[0044] Furthermore, the opening brake power mechanism also includes a spring mounting assembly, which includes a mounting sleeve and a mounting rod, and the mounting sleeve is fixedly arranged on the mounting plate; one end of the mounting rod is hinged on the opening brake energy storage mounting part, and the other end of the mounting rod extends into the inner cavity of the mounting sleeve; the opening brake spring is sleeved on the mounting rod, and one end of the opening brake spring is against the end face of the inner cavity of the mounting sleeve close to the opening brake energy storage mounting part, and the other end of the opening brake spring is against the end of the other end of the mounting rod.

[0045] A preferred embodiment of the present invention, wherein the opening switch limiting structure includes an opening switch limiting fork, an opening switch positioning block and an opening switch limiting rod; the opening switch limiting fork is rotatably connected to the mounting plate, and the rotation center of the opening switch limiting fork is parallel to the rotation center of the closing and opening transmission shaft; the opening switch limiting fork is provided with a opening switch pressing portion for pressing against the opening switch limiting rod; the opening switch positioning block is rotatably connected to the opening switch limiting fork through a torsion spring, and is used for limiting and pressing the opening switch transmission wheel; the opening switch limiting rod is rotatably connected to the mounting plate, and the rotation center of the opening switch limiting rod is parallel to the rotation center of the opening switch limiting fork.

[0046] A preferred solution of the present invention, wherein the opening gate release assembly includes an opening gate electromagnet and an opening gate release transmission plate, the telescopic rod of the opening gate electromagnet is located in front of the opening gate release transmission plate, and the opening gate release transmission plate is fixedly connected to the opening gate limit rod; the opening gate limit rod is provided with a opening gate avoidance groove for avoiding the opening gate top pressure part.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] When the circuit breaker is closed, the air-insulated spring-operated quick-break ring network cabinet of the present invention pulls the circuit breaker / isolating interlock moving plate and the circuit breaker / isolating interlock blocking piece to move horizontally through the circuit breaker / isolating interlock connecting rod until they block the front of the end of the isolating operating shaft, so that when the circuit breaker is closed, the isolating switch cannot be opened or closed, the reliability is relatively good, and the safety hazard is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 The present invention is a side view of the air-insulated spring-operated quick-break ring network cabinet with one side wall hidden.

[0050] Figure 2 It is a schematic diagram of the three-dimensional structure of the main switch of the present invention.

[0051] Figure 3 It is a side view of the main switch of the present invention.

[0052] Figure 4 for Figure 3 Magnified view of the X in .

[0053] Figure 5 It is a three-dimensional structural schematic diagram of the spring circuit breaker operating device of the present invention.

[0054] Figure 6 The three-dimensional structural diagram of one of the mounting plates is hidden in the spring circuit breaker operating device of the present invention.

[0055] Figure 7 It is a front view of the spring circuit breaker operating device of the present invention.

[0056] Figure 8 A front view of one of the mounting plates is hidden for the spring circuit breaker operating device of the present invention.

[0057] Fig. 9 It is a rear view of the closing power mechanism of the spring circuit breaker operating device of the present invention.

[0058] Fig.10 It is a three-dimensional structural schematic diagram of the energy storage transmission structure and the closing and opening transmission mechanism of the spring circuit breaker operating device of the present invention.

[0059] Figure 11-15 It is a front view showing a partial structure of the closing power mechanism, the opening power mechanism and the closing and opening transmission mechanism of the spring circuit breaker operating device of the present invention in several different working states.

[0060] Fig.16 It is a front view of the spring circuit breaker operating device and the isolation operating mechanism of the present invention.

[0061] Fig.17 It is a front view of the mounting plate, the closing and opening transmission fork and the isolating operating mechanism of the spring circuit breaker operating device of the present invention.

[0062] Fig.18 It is a rear view of the mounting plate and the isolation operating mechanism of the spring circuit breaker operating device of the present invention.

[0063] Fig.19It is a front view of the closing and opening transmission fork and the circuit breaker / isolating interlock assembly of the present invention.

[0064] Fig. 20 It is a front view of the mounting plate and the isolation / circuit breaker interlock assembly of the present invention.

[0065] Fig.21 It is a rear view of the mounting plate and the isolating / circuit breaker interlock assembly of the present invention.

[0066] Fig. 22 It is a front view of the isolation operation shaft and the isolation / grounding interlock assembly of the present invention.

[0067] Fig.23 It is a side view of the isolation operating shaft and isolation / grounding interlock assembly of the present invention. DETAILED DESCRIPTION

[0068] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0069] See also Figure 1 The air-insulated spring-operated quick-break ring main unit of this embodiment comprises a cabinet a and a main switch, a spring circuit breaker operating device, and an isolating operating mechanism arranged in the cabinet a; wherein the cabinet a is provided with an air-insulated chamber 1a, an operating chamber 2a, a cable chamber 3a, and a pressure relief chamber 4a, wherein the operating chamber 2a is located at one side of the air-insulated chamber 1a; the cable chamber 3a and the pressure relief chamber 4a are located below the air-insulated chamber 1a; the main switch is arranged in the air-insulated chamber 1a; and the spring circuit breaker operating device is arranged in the operating chamber 2a.

[0070] See also Figure 2-3 The main switch includes a circuit breaker switch and an isolating switch; the circuit breaker switch is arranged above the isolating switch, and the circuit breaker switch includes a pole, a one-way insulating mounting structure and a circuit breaker transmission structure; the upper end of the pole is connected to the circuit breaker transmission structure, and the lower end of the pole extends to the top of the isolating switch; wherein the pole includes an isolating static contact 1b, a vacuum arc extinguishing chamber 2b, a flexible connection 3b and an insulating pull rod 4b; the isolating static contact 1b, the vacuum arc extinguishing chamber 2b, the flexible connection 3b and the insulating pull rod 4b are fixedly connected end to end from bottom to top in sequence; the top end of the insulating pull rod 4b is connected to the circuit breaker transmission structure.

[0071] See also Figure 2-3The one-way insulating mounting structure includes an insulating bottom plate 5b, an insulating middle plate 6b, a top plate 7b and a support rod 8b. The insulating bottom plate 5b, the insulating middle plate 6b and the top plate 7b are arranged horizontally, and the support rod 8b is arranged vertically; the insulating bottom plate 5b, the insulating middle plate 6b and the top plate 7b are arranged in parallel from bottom to top in sequence; the support rod 8b is provided with two groups, one group is vertically fixed between the insulating bottom plate 5b and the insulating middle plate 6b, and the other group is vertically fixed between the insulating middle plate 6b and the top plate 7b; the central positions of the insulating bottom plate 5b, the insulating middle plate 6b and the top plate 7b are all provided with avoidance holes for installing poles.

[0072] Furthermore, the lower part of the insulating bottom plate 5b is connected to the first insulating support side plate 9b via an insulating fixing plate, and the first insulating support side plate 9b is fixedly connected to the side wall of the cabinet a.

[0073] Furthermore, the top plate 7b is fixedly connected to the side wall of the cabinet a.

[0074] Furthermore, each group of support rods 8b is provided with four support rods 8b and are distributed in a rectangular shape, which can provide balanced and stable support.

[0075] See also Figure 2-4 The circuit breaker transmission structure includes a circuit breaker transmission shaft 11b, an eccentric transmission member 12b and a connecting rod structure 13b; the circuit breaker transmission shaft 11b is rotatably connected to the top plate 7b through a fixed bracket, and the circuit breaker transmission shaft 11b is connected to the circuit breaker operating device through the connecting rod structure 13b; the eccentric transmission member 12b is fixedly arranged on the circuit breaker transmission shaft 11b, and an arc-shaped transmission hole 12-1b is provided on the eccentric transmission member 12b, and the distances from the two ends of the arc-shaped transmission hole 12-1b to the axis of the circuit breaker transmission shaft 11b are not equal; the top end of the insulating pull rod 4b of the pole can be movably connected to the arc-shaped transmission hole 12-1b. Through the above structure, as the circuit breaker transmission shaft 11b rotates forward and reverse, the insulating pull rod 4b can be driven to rise or fall, so as to realize the opening or closing of the circuit breaker.

[0076] See also Figure 2-4 The isolating switch includes an isolating knife switch 14b, a knife switch mounting structure and an isolating transmission structure; the knife switch mounting structure includes a second insulating support side plate 15b, an insulator 16b and a mounting seat 17b, the second insulating support side plate 15b is fixedly arranged in the cabinet a; the insulator 16b is fixedly arranged on the second insulating support side plate 15b; the mounting seat 17b is fixedly arranged on the insulator 16b; one end of the isolating knife switch 14b is hinged on the mounting seat 17b.

[0077] Furthermore, the isolation transmission structure includes an isolation transmission shaft 18b and a swing assembly, wherein the isolation transmission shaft 18b is rotatably connected in the cabinet a and is connected to the isolation power mechanism; the swing assembly includes a first rocker arm 19b and a second rocker arm 20b, wherein one end of the first rocker arm 19b is fixedly connected to the isolation transmission shaft 18b, and both ends of the second rocker arm 20b are respectively hinged to the other end of the first rocker arm 19b and the isolation knife switch 14b.

[0078] See also Figure 5 The spring circuit breaker operating device includes a mounting plate 1c and a closing power mechanism, an opening power mechanism, and a closing / opening transmission mechanism arranged on the mounting plate 1c; wherein the mounting plate 1c is provided with two and vertically parallelly arranged to provide balanced support for the closing power mechanism, the opening power mechanism, and the closing / opening transmission mechanism, facilitate the horizontal layout of the closing power mechanism, the opening power mechanism, and the closing / opening transmission mechanism, and reduce the vertical height.

[0079] See also Figure 5-8 The closing power mechanism includes a closing spring 2c, a closing energy storage component, a closing limit component, a closing release component and a closing cam 3c; the closing energy storage component includes an energy storage motor 4c and an energy storage transmission structure; the output shaft of the energy storage motor 4c extends in the horizontal direction; the energy storage transmission structure includes a transmission gear, an energy storage shaft 5c and an energy storage eccentric frame 6c; the transmission gear includes a first transmission gear 7c and a second transmission gear 8c; the first transmission gear 7c is connected to the energy storage motor 4c; the second transmission gear 8c is connected to the first transmission gear 7c is meshed, and the second transmission gear 8c is rotatably connected to the energy storage shaft 5c; a transmission clutch structure is provided between the second transmission gear 8c and the energy storage shaft 5c; the energy storage shaft 5c is rotatably connected to the mounting plate 1c, and the axis of the energy storage shaft 5c is parallel to the output shaft of the energy storage motor 4c; the energy storage eccentric frame 6c is fixedly arranged on the energy storage shaft 5c; one end of the closing spring 2c is rotatably connected to the mounting plate 1c, and the other end of the closing spring 2c is rotatably connected to the energy storage eccentric frame 6c; the closing cam 3c is fixedly arranged on the energy storage shaft 5c.

[0080] See also Fig. 9The transmission clutch structure includes a clutch wheel 9c, a clutch claw 10c and a limiting separation member (not shown in the figure), the clutch wheel 9c is fixedly arranged on the energy storage shaft 5c, and a clutch slot is arranged on the side of the clutch wheel 9c; the clutch claw 10c is rotatably arranged on the second transmission gear 8c, and a torsion spring (not shown in the figure) is arranged between the clutch claw 10c and the second transmission gear 8c; one end of the clutch claw 10c is a clamping portion that cooperates with the clutch slot, and the other end of the clutch claw 10c is a separation extrusion portion that cooperates with the limiting separation member; one end of the limiting separation member is fixedly arranged on the mounting plate 1c, and the other end of the limiting separation member extends to the rotation path of the separation extrusion portion of the clutch claw 10c; when the separation extrusion portion of the clutch claw 10c contacts the limiting separation member, the clamping portion withdraws from the clutch slot and slides on the side of the clutch wheel 9c, and the closing limit assembly is in a limited state.

[0081] See also Figure 8-10 The closing limit assembly includes a closing limit fork 11c, a closing limit rod 12c and a limit wheel 13c; the closing limit fork 11c is rotatably connected to the mounting plate 1c, and the rotation center of the closing limit fork 11c is parallel to the rotation center of the energy storage shaft 5c; the closing limit fork 11c is provided with a first pressing portion for supporting the limit wheel 13c and a second pressing portion for supporting the closing limit rod 12c; the closing limit rod 12c is rotatably connected to the mounting plate 1c, and the rotation center of the closing limit rod 12c is parallel to the rotation center of the closing limit fork 11c; the limit wheel 13c is eccentrically arranged on the closing cam 3c.

[0082] See also Figure 8 The closing release assembly includes a closing electromagnet 14c and a closing release transmission plate 15c. The telescopic rod of the closing electromagnet 14c is located in front of the closing release transmission plate 15c. The closing release transmission plate 15c is fixedly connected to the closing limit rod 12c. The closing limit rod 12c is provided with a closing avoidance groove for avoiding the second pressing part.

[0083] See also Figure 8-10 The closing and opening transmission mechanism includes a closing and opening transmission shaft 16c and a closing and opening transmission fork 17c; the closing and opening transmission shaft 16c is rotatably connected to the mounting plate 1c and is connected to the transmission end of the circuit breaker switch; the rotation center of the closing and opening transmission shaft 16c is parallel to the axis of the output shaft of the energy storage motor 4c; the closing and opening transmission fork 17c is fixedly arranged on the closing and opening transmission shaft 16c, and the closing and opening transmission fork 17c is provided with a closing transmission part, an opening transmission part and an opening energy storage mounting part; the closing transmission part is provided with a closing transmission wheel 18c; the opening transmission part is provided with an opening transmission wheel 19c.

[0084] See also Figure 5-8The opening brake power mechanism includes an opening brake spring 20c, a spring mounting assembly, an opening brake limiting structure and an opening brake releasing assembly; the spring mounting assembly includes a mounting sleeve 21c and a mounting rod 22c, and the mounting sleeve 21c is fixedly arranged on the mounting plate 1c; one end of the mounting rod 22c is hinged on the opening brake energy storage mounting portion, and the other end of the mounting rod 22c extends into the inner cavity of the mounting sleeve 21c; the opening brake spring 20c is sleeved on the mounting rod 22c, one end of the opening brake spring 20c is against the end face of the inner cavity of the mounting sleeve 21c close to the opening brake energy storage mounting portion, and the other end of the opening brake spring 20c is against the end of the other end of the mounting rod 22c.

[0085] See also Figure 5-8 The opening switch limiting structure includes an opening switch limiting fork 23c, an opening switch positioning block 24c and an opening switch limiting rod 25c; the opening switch limiting fork 23c is rotatably connected to the mounting plate 1c, and the rotation center of the opening switch limiting fork 23c is parallel to the rotation center of the closing and opening transmission shaft 16c; the opening switch limiting fork 23c is provided with an opening switch pressing portion for pressing against the opening switch limiting rod 25c; the opening switch positioning block 24c is rotatably connected to the opening switch limiting fork 23c through a torsion spring, and is used for limiting and pressing the opening switch transmission wheel 19c; the opening switch limiting rod 25c is rotatably connected to the mounting plate 1c, and the rotation center of the opening switch limiting rod 25c is parallel to the rotation center of the opening switch limiting fork 23c.

[0086] See also Figure 5-8 The opening gate release assembly includes an opening gate electromagnet 26c and an opening gate release transmission plate 27c. The telescopic rod of the opening gate electromagnet 26c is located in front of the opening gate release transmission plate 27c. The opening gate release transmission plate 27c is fixedly connected to the opening gate limiting rod 25c. The opening gate limiting rod 25c is provided with an opening gate avoidance groove for avoiding the opening gate top pressure part.

[0087] See also Figure 5-15 , the working principle of the spring circuit breaker operating device of this embodiment is:

[0088] During operation, before closing the circuit breaker, energy storage is required first: the energy storage motor 4c provides driving force, and the first transmission gear 7c rotates counterclockwise to transmit power to the second transmission gear 8c, so that the second transmission gear 8c rotates on the energy storage shaft 5c; at the same time, the clutch claw 10c follows the second transmission gear 8c to move on the side of the clutch wheel 9c until the clamping part of the clutch claw 10c enters the clutch clamping groove, and then enters the power transmission state, and then the second transmission gear 8c drives the clutch wheel 9c, the energy storage shaft 5c, and the energy storage eccentric frame 6c to rotate, thereby pulling the closing spring 2c to deform and store energy; at this time, the limit wheel 13c rotates along the closing cam 3c toward the direction of the first pressing part of the closing limit fork 11c, until the limit wheel 13c presses on the first pressing part of the closing limit fork 11c, and the second pressing part of the closing limit fork 11c presses on the closing limit rod 12c, and stops rotating. Fig.11 At the same time, the separation and extrusion part of the clutch claw 10c hits the limit separation member, and the limit separation member drives the clamping part of the clutch claw 10c to withdraw from the clutch card slot, entering the power disconnection state, and the energy storage motor 4c, the first transmission gear 7c, and the second transmission gear 8c are in a short idling state; the energy storage operation is completed. Of course, the operation can also be completed manually, the difference is that it is necessary to manually provide the power for closing the switch to rotate the first transmission gear 7c, and then perform the same operation as above.

[0089] When the circuit breaker needs to be closed, the closing release transmission plate 15c is driven by the closing electromagnet 14c, which drives the closing limit rod 12c to rotate, so that the closing avoidance groove of the closing limit rod 12c turns to the second pressing part of the closing limit fork 11c; when the closing avoidance groove rotates to the front of the second pressing part, the limit on the closing limit fork 11c is released, and the closing spring 2c begins to restore the deformation to release potential energy, driving the energy storage shaft 5c and the closing cam 3c to rotate in the direction of the closing transmission wheel 18c (the closing limit fork 11c rotates forward), so that the closing cam 3c hits the closing transmission wheel 18c, thereby pushing the closing and opening transmission fork 17c to rotate, as shown in FIG. Figure 12-13At this time, the closing and opening transmission shaft 16c transmits the power of the closing and opening transmission fork 17c to the circuit breaker switch, and the closing operation begins; during the rotation of the closing and opening transmission fork 17c, the mounting rod 22c swings along with the opening energy storage mounting portion of the closing and opening transmission fork 17c, causing the opening spring 20c to deform and store energy; at the same time, the opening transmission wheel 19c rotates along with the opening transmission portion of the closing and opening transmission fork 17c toward the opening positioning block 24c, and when the opening transmission wheel 19c approaches the opening positioning block 24c, 4c, push it back until the opening drive wheel 19c passes over the opening positioning block 24c, and then the opening positioning block 24c is reset under the action of the torsion spring; at this time, the circuit breaker switch enters the closed state; the closing spring 2c stops driving, and the opening spring 20c is ready to release potential energy to restore deformation, so that the opening drive wheel 19c presses on the opening positioning block 24c, and the opening pressing part of the opening limit fork 23c presses on the opening limit rod 25c, entering a locked state, thereby keeping the circuit breaker from automatically opening after closing. Fig.14 .

[0090] When it is necessary to open the gate, the opening gate release transmission plate 27c is driven by the opening gate electromagnet 26c, which drives the opening gate limit rod 25c to rotate, so that the opening gate avoidance groove of the opening gate limit rod 25c is turned to the opening gate top pressure part of the opening gate limit rod 25c; when the opening gate avoidance groove rotates to the front of the opening gate top pressure part, the limit on the opening gate limit fork 23c is released, and the opening gate spring 20c begins to restore the deformation to release potential energy, driving the closing and opening transmission fork 17c to rotate (the opening gate limit fork 23c rotates forward with the opening gate positioning block 24c), and the power of the closing and opening transmission fork 17c is transmitted to the circuit breaker switch through the closing and opening transmission shaft 16c, thereby driving the circuit breaker switch to open the gate, such as Fig.15 .

[0091] See also Figure 16-18 The isolation operating mechanism includes an isolation operating shaft 1d, a circuit breaker / isolation interlock assembly, an isolation / circuit breaker interlock assembly, and an isolation / grounding interlock assembly; the isolation operating shaft 1d is connected to the isolation transmission shaft 18b through a transmission structure. Through the above structure, the isolation operating shaft 1d can be manipulated to open or close the isolation switch.

[0092] See also Figure 16-19The circuit breaker / isolating interlock assembly includes a circuit breaker / isolating interlock connecting rod 2d, a circuit breaker / isolating interlock moving plate 3d, a circuit breaker / isolating interlock blocking piece 4d and a circuit breaker / isolating interlock fixed plate 5d; an interlocking mounting portion is also provided on the closing / opening transmission fork 17c; one end of the circuit breaker / isolating interlock connecting rod 2d is hinged on the interlocking mounting portion, and the other end of the circuit breaker / isolating interlock connecting rod 2d is connected to the oblong hole of the circuit breaker / isolating interlock moving plate 3d; the circuit breaker / isolating interlock moving plate 3d is fixedly connected to the circuit breaker / isolating interlock blocking piece 4d, and the circuit breaker / isolating interlock moving plate 3d is connected to the circuit breaker / isolating interlock fixed plate 5d through a transverse sliding structure; when the closing / opening transmission fork 17c is in the closed state, the circuit breaker / isolating interlock blocking piece 4d blocks the front of the end of the isolation operating shaft 1d. Through the above structure, when closing the circuit breaker, the closing and opening transmission fork 17c rotates in the corresponding direction, and the circuit breaker / isolating interlock moving plate 3d and the circuit breaker / isolating interlock blocking piece 4d are pulled horizontally through the circuit breaker / isolating interlock connecting rod 2d until they block the front of the end of the isolating operating shaft 1d, thereby achieving the situation that when the circuit breaker is closed, the isolating switch cannot be opened or closed.

[0093] See also Figure 16-18 and Figure 20-21The isolating / circuit breaker interlocking assembly includes an isolating / circuit breaker interlocking baffle 6d, an isolating / circuit breaker interlocking transmission plate 7d, an interlocking spring (not shown in the figure), an isolating / circuit breaker interlocking moving plate 8d and an isolating / circuit breaker interlocking wheel 9d; the isolating / circuit breaker interlocking baffle 6d is fixedly arranged on the closing limit rod 12c; the isolating / circuit breaker interlocking transmission plate 7d is connected to the mounting plate 1c through a transverse sliding structure; the two ends of the interlocking spring are fixedly connected to the isolating / circuit breaker interlocking transmission plate 7d and the mounting plate 1c; one end of the isolating / circuit breaker interlocking moving plate 8d is fixedly connected to the isolating / circuit breaker interlocking transmission plate 7d, and the other end of the isolating / circuit breaker interlocking moving plate 8d is provided with a The isolating / circuit breaker guide hole 8-1d is forked on the isolating operating shaft 1d; the isolating / circuit breaker interlocking wheel 9d is arranged on the isolating operating shaft 1d, and the isolating / circuit breaker interlocking wheel 9d is provided with an isolating / circuit breaker transmission notch obtained by cutting off part of the structure; the other end of the isolating / circuit breaker interlocking moving plate 8d is provided with an isolating / circuit breaker interlocking pressing portion 8-2d for abutting against the side of the isolating / circuit breaker interlocking wheel 9d; in the open state of the isolating switch, the top of the isolating / circuit breaker interlocking transmission plate 7d is pressed against the front of the isolating / circuit breaker interlocking baffle 6d; the isolating / circuit breaker interlocking pressing portion 8-2d is pressed against the side of the non-isolating / circuit breaker transmission notch of the isolating / circuit breaker interlocking wheel 9d. Through the above structure, the isolation operating shaft 1d is rotated in the direction of closing, driving the isolation / circuit breaker interlocking wheel 9d to rotate; when the isolation / circuit breaker transmission notch of the isolation / circuit breaker interlocking wheel 9d rotates to the front of the isolation / circuit breaker interlocking top pressing part 8-2d of the isolation / circuit breaker interlocking moving plate 8d, the interlocking spring releases potential energy to drive the isolation / circuit breaker interlocking top pressing part 8-2d of the isolation / circuit breaker interlocking moving plate 8d to enter the isolation / circuit breaker transmission notch and press on the side of the isolation / circuit breaker transmission notch, at this time, the isolation / circuit breaker interlocking transmission plate 7d and the isolation / circuit breaker interlocking moving plate 8d move laterally, so that the isolation / circuit breaker interlocking transmission plate 7d is away from the isolation / circuit breaker interlocking baffle 6d, thereby releasing the restriction of the closing limit rod 12c, so that the circuit breaker can be closed, so that the circuit breaker can only be closed and opened when the isolating switch is closed.

[0094] See also Figure 16-18 and Figure 22-23The isolation / grounding interlocking assembly includes an isolation / grounding interlocking transmission plate 10d and an isolation / grounding interlocking wheel 11d; the upper and lower ends of the isolation / grounding interlocking transmission plate 10d are respectively provided with isolation / grounding guide holes 10-1d, and the two isolation / grounding guide holes 10-1d are respectively forked on the isolation operating shaft 1d and forked on the grounding operating shaft 12d of the grounding mechanism; the isolation / grounding interlocking wheel 11d is provided with two and is respectively arranged on the isolation operating shaft 1d and the grounding operating shaft 12d, and the isolation / grounding interlocking wheel 11d is provided with an isolation / grounding transmission notch obtained by cutting off part of the structure; the two ends of the isolation / grounding interlocking transmission plate 10d are respectively provided with an isolation / grounding interlocking top pressing part 10-2d for abutting against the side of the isolation / grounding interlocking wheel 11d. Through the above structure, the grounding operating shaft 12d is rotated in the closing direction, and the isolation / grounding interlock wheel 11d located on the grounding operating shaft 12d drives the isolation / grounding interlock transmission plate 10d to move upward, so that the isolation / grounding interlock top pressure part 10-2d at the upper end of the isolation / grounding interlock transmission plate 10d enters the isolation / grounding transmission notch of the isolation / grounding interlock wheel 11d on the isolation operating shaft 1d, thereby limiting it, making the isolating switch unable to operate. Therefore, the isolating switch can only be closed and opened when the grounding switch is open.

[0095] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An air-insulated spring-operated quick-break ring main unit, comprising a cabinet body and a main switch, a spring circuit breaker operating device, and an isolation operating mechanism arranged in the cabinet body; characterized in that: The main switch includes a circuit breaker switch and an isolating switch; The spring circuit breaker operating device comprises a mounting plate and a closing power mechanism, an opening power mechanism and a closing and opening transmission mechanism arranged on the mounting plate; The isolation operating mechanism includes an isolation operating shaft and a circuit breaker / isolation interlocking assembly; the isolation operating shaft is connected to the isolation transmission shaft of the isolation switch through a transmission structure; the circuit breaker / isolation interlocking assembly includes a circuit breaker / isolation interlocking connecting rod, a circuit breaker / isolation interlocking moving plate, a circuit breaker / isolation interlocking baffle and a circuit breaker / isolation interlocking fixing plate; an interlocking mounting portion is provided on the closing and opening transmission fork of the closing and opening transmission mechanism, and the closing and opening transmission fork is connected to the transmission end of the circuit breaker switch through the closing and opening transmission shaft. ; One end of the circuit breaker / isolating interlocking connecting rod is hinged on the interlocking mounting portion, and the other end of the circuit breaker / isolating interlocking connecting rod is connected to the oblong hole of the circuit breaker / isolating interlocking moving plate; the circuit breaker / isolating interlocking moving plate is fixedly connected to the circuit breaker / isolating interlocking baffle, and the circuit breaker / isolating interlocking moving plate is connected to the circuit breaker / isolating interlocking fixed plate through a transverse sliding structure; when the closing and opening transmission fork is in the closed state, the circuit breaker / isolating interlocking baffle blocks the front of the end of the isolating operating shaft; The isolation operating mechanism further includes an isolation / circuit breaker interlocking assembly, which includes an isolation / circuit breaker interlocking baffle, an isolation / circuit breaker interlocking transmission plate, an interlocking spring, an isolation / circuit breaker interlocking moving plate and an isolation / circuit breaker interlocking wheel; The isolating / circuit breaker interlocking baffle is fixedly arranged on the closing limit rod; The isolating / circuit breaker interlocking transmission plate is connected to the mounting plate via a transverse sliding structure; The two ends of the interlock spring are fixedly connected to the isolating / circuit breaker interlock transmission plate and the mounting plate; One end of the isolating / circuit breaker interlocking movable plate is fixedly connected to the isolating / circuit breaker interlocking transmission plate, and the other end of the isolating / circuit breaker interlocking movable plate is provided with an isolating / circuit breaker guide hole for forking on the isolating operating shaft; The isolating / circuit breaker interlocking wheel is arranged on the isolating operating shaft, and the isolating / circuit breaker interlocking wheel is provided with an isolating / circuit breaker transmission notch obtained by cutting off a part of the structure; the other end of the isolating / circuit breaker interlocking moving plate is provided with an isolating / circuit breaker interlocking pressing portion for abutting against the side surface of the isolating / circuit breaker interlocking wheel; In the disconnecting state of the disconnector, the top of the disconnector / circuit breaker interlock transmission plate presses against the front of the disconnector / circuit breaker interlock baffle; the disconnector / circuit breaker interlock pressing portion presses against the side of the non-disconnector / circuit breaker transmission notch of the disconnector / circuit breaker interlock wheel; The isolation operating mechanism further includes an isolation / grounding interlock assembly, which includes an isolation / grounding interlock transmission plate and an isolation / grounding interlock wheel; The upper end and the lower end of the isolation / grounding interlock transmission plate are respectively provided with isolation / grounding guide holes, and the two isolation / grounding guide holes are respectively forked on the isolation operation shaft and the grounding operation shaft of the grounding mechanism; The isolation / grounding interlocking wheels are provided with two and are respectively arranged on the isolation operating shaft and the grounding operating shaft, and the isolation / grounding interlocking wheels are provided with an isolation / grounding transmission notch obtained by cutting off part of the structure; both ends of the isolation / grounding interlocking transmission plate are respectively provided with an isolation / grounding interlocking pressing portion for abutting against the side of the isolation / grounding interlocking wheel; The circuit breaker switch is arranged above the disconnector, and the circuit breaker switch includes a pole, a one-way insulation mounting structure and a circuit breaker transmission structure; the upper end of the pole is connected to the circuit breaker transmission structure, and the lower end of the pole extends to the top of the disconnector; the one-way insulation mounting structure includes an insulating bottom plate, an insulating middle plate, a top plate and a support rod, the insulating bottom plate, the insulating middle plate and the top plate are arranged horizontally, and the support rod is arranged vertically; the insulating bottom plate, the insulating middle plate and the top plate are arranged in parallel from bottom to top in sequence; two groups of support rods are provided, one group is vertically fixed between the insulating bottom plate and the insulating middle plate, and the other group is vertically fixed between the insulating middle plate and the top plate; avoidance holes for installing poles are provided at the center positions of the insulating bottom plate, the insulating middle plate and the top plate.

2. The air-insulated spring-operated quick-break ring main unit according to claim 1, characterized in that: The closing power mechanism comprises a closing spring, a closing energy storage component, a closing limit component and a closing release component; the closing energy storage component comprises an energy storage transmission structure for transmitting the closing power to the closing spring in a rotational manner, and the rotation center of the energy storage transmission structure extends in the horizontal direction and is perpendicular to the mounting plate; the closing power is transmitted to the closing spring through the energy storage transmission structure; and the closing spring that has completed energy storage is locked through the closing limit component; The rotation center of the closing and opening transmission mechanism is parallel to the rotation center of the energy storage transmission structure; the limit of the closing limit assembly is released by the closing release assembly, the closing spring releases the potential energy, and the closing power is transmitted to the circuit breaker switch through the closing and opening transmission mechanism.

3. The air-insulated spring-operated quick-break ring main unit according to claim 2, characterized in that: The closing energy storage assembly also includes an energy storage motor, the output shaft of which extends in the horizontal direction; The energy storage transmission structure includes a transmission gear, an energy storage shaft and an energy storage eccentric frame; the transmission gear includes a first transmission gear and a second transmission gear; the first transmission gear is connected to the energy storage motor; the second transmission gear is meshed with the first transmission gear, and the second transmission gear is rotatably connected to the energy storage shaft; a transmission clutch structure is provided between the second transmission gear and the energy storage shaft; the energy storage shaft is rotatably connected to the mounting plate, and the axis of the energy storage shaft is parallel to the output shaft of the energy storage motor; the energy storage eccentric frame is fixedly arranged on the energy storage shaft; one end of the closing spring is rotatably connected to the mounting plate, and the other end of the closing spring is rotatably connected to the energy storage eccentric frame; The closing power mechanism also includes a closing cam for transmitting the power of the closing spring to the closing and opening transmission mechanism, and the closing cam is fixedly arranged on the energy storage shaft.

4. The air-insulated spring-operated quick-break ring main unit according to claim 3 is characterized in that: The closing limit assembly comprises a closing limit fork, a closing limit rod and a limit wheel; the closing limit fork is rotatably connected to the mounting plate, and the rotation center of the closing limit fork is parallel to the rotation center of the energy storage shaft; the closing limit fork is provided with a first pressing portion for supporting the limit wheel and a second pressing portion for supporting the closing limit rod; the closing limit rod is rotatably connected to the mounting plate, and the rotation center of the closing limit rod is parallel to the rotation center of the closing limit fork; the limit wheel is eccentrically arranged on the closing cam; The closing release assembly includes a closing electromagnet and a closing release transmission plate. The telescopic rod of the closing electromagnet is located in front of the closing release transmission plate. The closing release transmission plate is fixedly connected to the closing limit rod. The closing limit rod is provided with a closing avoidance groove for avoiding the second pressing part.

5. The air-insulated spring-operated quick-break ring main unit according to claim 1, characterized in that: The opening power mechanism includes an opening spring, an opening limit structure and an opening release assembly; during the closing operation, the opening spring stores energy, and the energy storage completion state is locked by the opening limit structure; during the opening operation, the opening limit structure is released by the opening release assembly, the opening spring pulls the closing and opening transmission mechanism, and the closing and opening transmission mechanism transmits the opening power to the circuit breaker switch.

6. The air-insulated spring-operated quick-break ring main unit according to claim 5, characterized in that: The opening switch limiting structure comprises an opening switch limiting fork, an opening switch positioning block and an opening switch limiting rod; the opening switch limiting fork is rotatably connected to the mounting plate, and the rotation center of the opening switch limiting fork is parallel to the rotation center of the closing and opening transmission shaft; the opening switch limiting fork is provided with an opening switch pressing portion for pressing against the opening switch limiting rod; the opening switch positioning block is rotatably connected to the opening switch limiting fork through a torsion spring, and is used for limiting and pressing the opening switch transmission wheel; the opening switch limiting rod is rotatably connected to the mounting plate, and the rotation center of the opening switch limiting rod is parallel to the rotation center of the opening switch limiting fork; The opening gate release assembly includes an opening gate electromagnet and an opening gate release transmission plate. The telescopic rod of the opening gate electromagnet is located in front of the opening gate release transmission plate. The opening gate release transmission plate is fixedly connected to the opening gate limit rod. The opening gate limit rod is provided with an opening gate avoidance groove for avoiding the opening gate top pressure part.

7. The air-insulated spring-operated quick-break ring main unit according to claim 3, characterized in that: The closing and opening transmission mechanism comprises a closing and opening transmission shaft, a closing and opening transmission shift fork, and a closing cam for transmitting the power of the closing spring to the closing and opening transmission shift fork; The closing and opening transmission shaft is rotatably connected to the mounting plate and is connected to the transmission end of the circuit breaker switch; the closing and opening transmission fork is fixedly arranged on the closing and opening transmission shaft, and the closing and opening transmission fork is provided with a closing transmission part, an opening transmission part and an opening energy storage mounting part; the closing transmission part is provided with a closing transmission wheel matched with the closing cam; the opening transmission part is provided with an opening transmission wheel; the closing cam is fixedly arranged on the energy storage rotating shaft.

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